Ba-e-3010-0408_knh34 Rautes Elektrostatikos Valdikliai + Ir

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Operating Instructions

KNH34 High Voltage Generator

BA-e-3010-0408

F00

019

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List of Contents1 Outline of Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.1 Identification of risks and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2 Contact protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3 Technical advance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.4 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.5 Work and operational safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Installation and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.1 Assembly of the high voltage generator . . . . . . . . . . . . . . . . . . . . . 103.2 Installation of the high voltage cables. . . . . . . . . . . . . . . . . . . . . . . 113.3 Charging bars suitable for connection . . . . . . . . . . . . . . . . . . . . . . 123.4 Connecting the high voltage cable to the generator and

to the distribution box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.5 Cutting the high voltage cable to length . . . . . . . . . . . . . . . . . . . . . 143.6 Disconnecting the high voltage cable . . . . . . . . . . . . . . . . . . . . . . . 163.7 Connecting the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.8 Digital interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.9 Analog interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.1 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.2 User concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214.3 Overview of functions with options and default settings . . . . . . . . . 224.4 Selecting the output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.5 Selecting the output voltage during operation . . . . . . . . . . . . . . . . 254.6 Selecting the output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.7 Selecting the output current during operation. . . . . . . . . . . . . . . . . 274.8 Selecting the operating parameters . . . . . . . . . . . . . . . . . . . . . . . . 284.9 Loading the default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10 Spare parts list and accessories. . . . . . . . . . . . . . . . . . . . . . . . . 46

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Dear customer,The KNH34 High Voltage Generator is a multi-purpose voltage supply unit for any high voltage application and for Eltex DC-operated charging bars.

The following bar models are available for connection: R130A/R131A,R120/R121A (note voltage limitation acc. to Operating Instructions

R120/R121A),R23ATR.

Programmable output and monitoring parameters, an outstanding feature of the KNH34 microprocessor-controlled high voltage generator, allow it to be adapted to any kind of operating condition. User operation is menu-assisted; texts and messages appear in plain text on a two-line display.

Also, the new terminal concept and the monitoring of important functions (high voltage cascade, calibration short-circuit current, voltage and current limitation) of the KNH34 high voltage generator provides the ultimate in safety standards.

With a minimum of wiring, its new digital field bus concept (CAN Bus) allows as many as 20 generators and remote controls to be networked. Due to the option of forming functional groups, even in complex plants, access via the remote control remains easy and clearly structured.

The RS-232 interface integrated in the remote control also allows the unit to be operated via the control room.

Please read these instructions carefully before starting the unit. This will help you prevent personal injuries and damage to property.

Simply give us a call if you have any suggestions, proposals or ideas for improvements. We greatly appreciate the feedback from the users of our appliances.

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1. Outline of Appliance

1 High voltage output 12 High voltage output 23 Socket, analog interface4 Socket, CAN bus (female)5 Ground terminal6 Socket, CAN bus (male)7 Socket, system input8 Fuses (see name plate)9 Master switch ON/OFF10 Operator interface two-line display, keypad

Fig. 1:KNH34 High Voltage Generator

Z00

093y

Hochspannungsgenerator

High Voltage Generator

AbbruchEscape SollwertSetpoint SpannungVoltage

KNH 34

1 2 3 4 5 6 7 8 9 10

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2. SafetyThe units have been designed, built and tested using state-of-the-art engi-neering, and have left the factory in a technically and operationally safe condition. If used improperly, the units may nevertheless be hazardous to personnel and may cause injury or damage. Read the operating instruc-tions carefully and observe the safety instructions.

2.1 Identification of risks and hazards

Possible risks and hazards resulting from the use of the units are referred to in these operating instructions by the following symbols:

Warning!This symbol appearing in the operating instructions refers to operations which, if carried out improperly, may result in serious personal injuries.

Caution!This symbol appearing in the operating instructions refers to operations which, if carried out improperly, may result in damage to property.

Ex Warning!This symbol denotes the special conditions which must be observed when operating the system in explosion hazard areas as specified in the EX approvals.

2.2 Contact protection

The site of installation and/or use of the units is outside the control of Eltex, contact protection against inadvertent contact of the bars and of live components by personnel as specified by the employer’s liability insur-ance association may have to be provided (e.g. BGV A2 in Germany). Contact protection devices made of conductive material must be grounded.

2.3 Technical advance

The manufacturer reserves the right to make changes to the technical specifications without prior notice in order to adapt the units to state-of-the-art engineering. Eltex will provide the latest information on any changes or modifications in the operating instructions on request.

2.4 Proper use

The KNH34 high voltage generator has been approved as operating volt-age generator for the appropriate Eltex charging bars. It must be operated only with the appropriate Eltex electrode bars (see chapter Installation and Assembly for electrode bar models).

Ex!

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If the unit is used in any other high voltage application, the manufacturer´s warranty covers the safe use in terms of technical safety.

The manufacturers will not assume any liability and warranty if the units are used improperly or used outside the intended purpose.

Modifications or changes made to the devices are not permitted.

Use only original Eltex spare parts and equipment.

2.5 Work and operational safety

Warning!Carefully observe the following notes!Always observe the rules and regulations applying in your country with reference to opening and repairing electrical appliances.• The unit and the charging bars must be installed, repaired, serviced

and tested by qualified personnel only.• Before carrying out repairs, cleaning or maintenance work and before

resetting the unit after malfunctions, switch off the high voltage genera-tor and disconnect the mains power supply.

• If the housing cover is removed and the supply voltage is switched on at the same time, contact protection is no longer effective. Always dis-connect the power before opening the units.

• Check the high voltage generator and the connected charging bars at regular intervals for any damage to the electrical wiring and the high voltage cables. Any damaged components must be repaired or replaced before continuing to operate the unit, or the appropriate elec-trode bar and the high voltage cables must be disabled.Make sure that the electrode bars are clean at all times.

• Connect or remove the electrode bars only after the supply voltage to the high voltage generator has been disconnected.

• The IP 54 protection class applies only if the lid of the enclosure is closed and the cable entries are covered.

• The operation of the electrodes can generate ozone. The ozone con-centration levels developing near the electrodes depend on many dif-ferent factors such as site of installation, electrode stream and voltage, air circulation, etc., and can therefore not be specified in general terms.If the maximum allowable concentration (MAC) of ozone must be observed at the site of installation of the electrode, the concentration must be measured on site.

• Static on personnelStatic charges on personnel are unlikely if the electrode bars are installed properly. Personnel must wear conductive footwear.Please note all national regulations regarding electrostatic charge (e.g. BGR132 in Germany).

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• Before putting the high voltage generator into operation make sure that the appliance is permantly grounded via the ground terminal. The ground cable should have a minimum cross section of 1,5 mm2.

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3. Installation and Assembly

3.1 Assembly of the high voltage generator

The unit is designed either for wall assembly or table mounting. Attach the unit using the assembly/mounting brackets supplied with the unit (see fig-ure). The bulging of the holes in the support plate must point in the direc-tion of the generator. When mounting the unit make sure that the operating elements and the connector terminals remain accessible and that control of the unit is not impaired.

The site of installation must be dry and free of dust, if possible. Air circula-tion above the cooling ribs must not be obstructed.

Fig. 2:Installation of the high voltage gen-erator with sup-porting plate

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AbbruchEscape SollwertSetpoint HochspannungHigh VoltageOn/Off



KNH 34

386

M8

M8

M6

M6

2,5

170

410

128

330

>100

212

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3.2 Installation of the high voltage cables• A minimum bending radius of 10 times the external diameter must be

maintained when routing the high voltage cable.• Do not route the cable over sharp edges (bending radius <5 mm). • Keep a minimum spacing of 50 mm between low voltage and high volt-

age cables; if this cannot be done, shield the low voltage cable. • If the high voltage cables are led through bores in conductive, grounded

materials, the minimum bore diameter D is calculated as follows from the wall thickness of the material: D = 60 mm2/wall thickness.Allow the biggest possible radius for the edges of the bore hole. Use an insulating grommet to centre the cable.

• If ungrounded and conductive objects are placed near (≤2m) the high voltage cable, influenced charges and sparking must be expected.Proper ground connection is therefore important.

• In applications using movable electrodes (e.g. film draw strips), attach the high voltage cables such that there is no cable movement near the connection point to the generator/power supply.

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3.3 Charging bars suitable for connection

The following charging bars are suitable for connecting to the KNH34 high voltage generator:• R23ATR point charging bar• Charging bars R130A/R131A,• Charging bars R120/R121A (note voltage limitation acc. to Operating

Instructions R120/R121A).

The KNHV3 distributor box, available as an optional extra, allows the user to increase the number of electrode bars connected (see figure). When using this option make sure that the sum of the electrode bar currents does not exceed 5 mA.

1 Generator2 Distributor box3 High voltage cable4 Charging bars

Example:Current per meter of active bar length: 1 mASum of active bar lengths: 3 m=> maximum total current: 3 mA.

Fig. 3:Installing the generator, the distributor box and the charging bars

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KNH 34

3

1

2

4

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3.4 Connecting the high voltage cable to the generator and to the distribution box

Warning!Electric shock hazard!Work may be carried out only if:• the supply voltage to the generator has been disconnected,• the machine is at a standstill because the electrodes pick up charges if

the material web is running.

Method:Connect the electrode bars via the prefabricated high voltage cable. Push the high voltage cables up to the stop into the socket connection. Finally, secure the adapter inside the socket with the clip provided (see figure).Cables without adapters have a color-coded marking on the flexible tubing. This marking must lie flush with the outside edge of the coupling.

Note: The clip must be fully inserted.

correct incorrect

Caution!The high voltage cable must be pushed up to the stop (90 mm for KNH34 and KNH64) into the cable inlet! The connecting area of the high voltage cable must be kept clean!

Fig. 4:Connecting the high voltage cable

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Fig. 5:Inserting the clip

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3.5 Cutting the high voltage cable to length



The detachable plug connection to the high voltage generator and to the distributor box can be cut to size as required. This allows the cable to be shortened.

Method:• Shorten the high voltage cable (2) and strip as shown in the figure.

• Push the split-pin plug (4) up to the stop onto the stripped piece of wire (3). Solder the wire section protruding from the plug (9) with the split-pin plug (4) and finally cut to length.

• Before following operations push back the flexible tube (1).

Fig. 6:Stripping the high voltage cable

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179y

23

3

2

Fig. 7:Fabricating the high voltage cable

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1 2 3 4 5 6 7 8

9

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• Push the washer (5) and the tubular rivet (6) over the high voltage cable (2). Crimp tubular rivet (6) by using a hexagonal crimper (5.41 mm) (space between collar of tubular rivet and tip of split-pin plug = A).

A Connection at the KNH34 generator and at the KNHV3 distributor: 94 mm (+1/-0,5)Connection at the KNH64 generator and at the KNHV6 distributor: 124 mm (+1/-0,5)Connection at the charging bar R131A: 52,5 mm (+1/-0,5)

B Connection at the KNH34 generator and KNHV3 distributor: 56 mmConnection at the KNH64 generator and KNHV6 distributor: 86 mmConnection at the charging bar R131A: 14,5 mm

• Push flexible tube (1) into the terminal adapter (8) and secure with clip (7).

A conversion kit comprising terminal adapter, tubular rivet, split-pin plug and washer is available as accessory from Eltex.

For the cable grip device to function properly, the cable diameter must be within the range 4.8...5.3 mm. This corresponds to the 50/60 kV high volt-age cable.

Fig. 8:Fabricating the high voltage cable

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199y

A B 13,5

1 2 6 5 8 4

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3.6 Disconnecting the high voltage cable



Take off the clip at the generator and/or the R131 bar, using a 3 mm screw driver. Then pull out the cable.

A conversion kit comprising terminal adapter, tubular rivet, split-pin plug and washer is available as accessory from Eltex.

3.7 Connecting the supply voltage

Supply voltage connection to the high voltage generator is made directly via the mains plug using a terminal connector or an earthing-pin plug linked to the mains power supply. We recommend enabling the supply voltage to the high voltage generator via a machine contact which disables the high voltage generator if the machine is stopped. This configuration will ensure that high voltage is not applied at the electrode bars with the machine stopped.

Warning!Disconnect and/or connect the mains cable on the socket only when off-load.

When using external protection fusing for generators, the following circuit-breaker must be used:6 A; tripping characteristic D in compliance with DIN VDE 0641 - 11/8.92;EN 60898/1991; IEC 898/1987 modified 11/91.

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3.8 Digital interface

The generators and remote controls to be networked are connected to the system bus in parallel. The dual design of the bus connection (socket and plug) to the generator and the remote control allows the bus to be looped through from component to component without sub-distribution. The com-ponents may be arranged in any sequence. If one component is discon-nected from the bus, the bus will be closed again by linking the coupling and the plug.

Bus front and bus end must be fitted with a terminating connector.

Socket, female Socket, male

Fig. 9:Pin assignment CAN bus female/male

PIN 1 = CAN highPIN 2 = CAN GNDPIN 3 = CAN low

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1

2

3 1

2

3

Fig. 10:Connecting cable KS/A = CAN bus

Color coding:1 = white2 = brown3 = green

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055y

123

123

KS/A Schirm/shield/ecran/schermo

Fig. 11:Bus topology (max. 20 appliances)

Z00

163e

AbbruchEscape

SollwertSetpoint

HochspannungHigh Voltage

On/Off



KNH 34

AbbruchEscape

SollwertSetpoint


On/Off



KNH 34

AbbruchEscape

SollwertSetpoint


On/Off



KNH 34

AbbruchEscape

SollwertSetpoint


On/Off

Fernbedienung

RS 232

AbbruchEscape

SollwertSetpoint


On/Off

Fernbedienung

RS 232

AbbruchEscape

SollwertSetpoint


On/Off

Fernbedienung

RS 232

AbbruchEscape

SollwertSetpoint


On/Off



KNH 34

AbbruchEscape

SollwertSetpoint


On/Off



KNH 34

1st generator

1st remote controlRS 232 interface

3rd remote control

2nd remote control

2nd generator 3rd generator nth generator4th generator

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3.9 Analog interface

The analog interface allows the generator to be integrated into an SPC or into another environment using 0…10 V- or 0…20 mA interfaces.

Caution!Make sure that the signals have been connected correctly to avoid any damage to the generator.The protection fusing of the error signal contact must be provided by the customer.

The following signals are available:

1 +24 V high voltage release: input high voltage release via external 24 V signal. Note: The parameter „Ext. HV ON/OFF“ must be set for „YES“.U = 24 VDC ±10%, I < 20 mA

2 GND high voltage release:input high voltage release via external 24 V signal.

3 Setpoint 0…10 V (input):10 V correspond to maximum output value (30 kV or 5 mA).Note:The parameter „Ext. Setpoint“ must be set on „ON“.Input resistance: 20 kΩ

4 Setpoint 0…20 mA (input):20 mA correspond to maximum output value (30 kV or 5 mA).Note:The parameter „Ext. Setpoint“ must be set on „ON“.Load: 220 Ω

Fig. 12:Pin assignment, analog interface

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054y

2

3

4 5

6

7

8

9

1

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5 Actual value I = 0…20 mA (output):0 mA corresponding to 0 mA, 20 mA correspond to 5 mA output current.Max. load: 500 Ω

6 Actual value U = 0…20 mA (output):0 mA corresponding to 0 kV, 20 mA correspond to 30 kV output voltage.Max. load: 500 Ω

7/8 Floating contact (error signal contact):Output depending on parameter „Limit Signal“:1st case: „Limit Signal = NO“: Contact opens in the event of malfunction (see chap. 7).2nd case: „Limit Signal = YES“: Contact opens in the event of malfunction and when reaching current or voltage limit. Max. 24 V / 0.5 A DC / AC

9 GND for setpoint and actual values.

Fig. 13:Connecting cable for analog inter-face KS/B

Color coding:1 = white2 = brown3 = green4 = yellow5 = gray6 = pink 7 = blue8 = red9 = black

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056y

123456789

KS/B Schirm/shield/ecran/schermo

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4. Operation

4.1 Start-up

Warning!Depending on the parameter setting „Auto Start“ high voltage may be applied immediately after switching on the supply voltage. Before switching on the unit the user must make sure that the installation has been carried out correctly and that the connections are correct. If yes, the supply voltage may be switched on.Use the rocker switch to switch on the high voltage generator. The display message signals the proper operation of the unit.The generator operates either in the operating mode „voltage constant“ or „current constant“.

If all necessary operating parameters have been correctly set, high vol-tage may be released via the Voltage key. The LED below the key will light up. High voltage is now applied at the electrode bars or at the high voltage output.The display is used to control the output voltage and the output current.

In the Voltage Constant mode, the setpoint value of the voltage is dis-played in the top line, and the actual value of the current is displayed in the bottom line. In the Current Constant mode, the setpoint value of the current is dis-played in the top line, and the actual value of the voltage is displayed in the bottom line.

Notes about the operation of the generator KNH34/W:When operating with the remote control ESC the keypad of the generator is locked. Should the remote control fail or the CAN bus link be disrupted, the keypad of the generator will be automatically activated after a delay of 5 seconds.If the remote control fails or the CAN bus link is disrupted during the operation of the system, high voltage is switched off automatically. After the keypad of the generator has been activated, the high voltage can be switched on and off directly at the generator.

Display (High voltage Off) SETPOINT 30.0 kV generator off

Display (High voltage On) VOLTAGE 20.0 kVcurrent 1.23 mA

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4.2 User concept

The high voltage generator is operated by means of five operating keys located in the front panel and a two-line display (see fig. 14).

The display signals parameters, values and error messages in plain text. Several languages are available for menu operation.

Fig. 14:Operator interface

AbbruchEscape

SollwertSetpoint

SpannungVoltage

activ/active

VOLTAGE 20.0 kVcurrent 1.23 mA

Abort currently entered values and settings by striking the key „Abbruch/Escape“. If, during setting, no key is activated for longer than 10 seconds, the generator auto-matically returns to the actual value display. This return is treated like an escape.After aborting a programming session, the generator con-tinues to operate with the last valid setting.The Escape key also serves as error acknowledgement (see chap. 7).

Use the key „Sollwert/Setpoint“ to 1) modify the current parameter and 2) to store the set value or the selection after changing the parameter.This key therefore releases a value for modification and allows it to be stored after modification.

The key „Spannung/Voltage“ enables the high voltage. If the high voltage is active, the LED below the lettering lights up.The high voltage may only be enabled if no windows for operating parameter settings are active and if no error message is displayed.

Use both arrow keys to modify numerical values or selecting a variety of options.

AbbruchEscape

SollwertSetpoint

SpannungVoltage

activ/active

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4.3 Overview of functions with options and default settings

Note! Selected operating parameters and setpoints are stored in the EEPROM where they are maintained even in case of mains power failures.

Function Description Setting options Default setting

Setpoint XX.X kV

Setting the output voltage in the „voltage constant“ operating mode.

0.0…30.0 kVin 0.1 kV increments

0.0 kV

Setpoint Y.YY mA

Setting the output current in the „current constant“ operating mode.

0.00…5.00 mA in 0.01 mA increments

0.00 mA

PASSWORD Request for password entry to mo-dify the operating parameters. After entering the password, the menu for modifying/setting the operating parameters will open automatically.The operating parameters are listed below.

Password entry Password:Voltage key2 x key 1 x key Setpoint key

Mode Setting the operating mode. „voltage constant“„current constant“

„voltage constant“

Umax XX.X kV Setting the maximum output voltage in the „voltage constant“ operating mode.


30.0 kV

Imax Y.YY mA Setting the maximum output current in the „current constant“ operating mode.


5.00 mA

Limit XX.X kV Setting the voltage limit in the „current constant“ operating mode.


30.0 kV

Limit Y.YY mA Setting the current limit in the „voltage constant“ operating mode.


5.00 mA

Limit mode If the selected current or voltage limit is exceeded, the generator is switched off or the output value is limited.

limitswitch off

limit

Limit Signal When reaching a current or voltage limit, a signal may be transmitted via the status relay.

YES/NO

NO

Change setpoint

Modification of the setpoint for vol-tage or current may be inhibited.

permittedinhibited

permitted

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AUTO Automatic or manual release of high voltage after mains power break.

OFFON

OFF

Ramp time The ramp time determines the time in which the output voltage reaches its setpoint.

0…9.0 seconds 3 s

Bus address If several generators are connected to a digital remote control, a definite address must be assigned to each generator.

00…20 00 (bus not active)

Generator type Allows the definition of functional groups which are then specifically addressed via a remote control.

KNH34FolderGroup 1Group 2Group 3

KNH34

Ext. Setpoint This setting defines if the setpoint for voltage or current is modifiable via the analog interface or via the keypad/CAN bus.

OFFON

OFF

Language Defines the language version of the text output on the display.

German, English, French, Spanish, Italian

German

ext. HV ON/OFF

This setting defines if the high voltage is to be enabled via an exter-nal 24 V signal.In this case, enabling can neither be done via the Voltage key nor via the external Setpoint.

NOYES

NO

Release via ext. Setpoint

This setting defines if the high voltage is to be enabled via an exter-nal Setpoint.In this case, enabling can neither be done via the Voltage key nor via the external 24 V signal.

NOYES

NO

Function Description Setting options Default setting

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4.4 Selecting the output voltage

SETPOINT 30.0 kVgenerator off

With the unit in the „voltage constant“ mode and with high voltage inactive, the opposite display appears.

Activate setpoint setting with the Setpoint key.


The line „Setpoint“ blinks.

Use the arrow keys to select the desired set-point of the output voltage.

Note!If an arrow key is kept pressed down, the setpoint will be changed in increments of 1 kV each. Pressing and releasing the key will change the setpoint in increments of 0.1 kV.

The newly selected value will be accepted via the Setpoint key. Abort resetting by pressing the Escape key. The setpoint will not be changed.

SETPOINT 20.0 kV generator off

Display

Activate the output voltage via the Voltage key. High voltage is present at the output, current flows.


Display

SollwertSetpoint

SollwertSetpoint

SpannungVoltage

activ/active

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4.5 Selecting the output voltage during operation


With the unit in the „voltage constant“ mode and with active high voltage, the opposite display appears.

Activate setpoint setting during operation with the Setpoint key.

setpoint 20.0 kVact. value 20.0 kV

Setpoint blinks.The output voltage of the actual values con-tinues to be available at the output.

Use the arrow keys to select the setpoint.

The selected value will be accepted at the out-put by pressing the Setpoint key.Abort resetting by pressing the Escape key. The setpoint will not be changed.

SollwertSetpoint

SollwertSetpoint

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4.6 Selecting the output current

SETPOINT 2.00 mAgenerator off

With the unit in the „current constant“ mode and with high voltage inactive, the opposite display appears.

Activate setpoint setting with the Setpoint key.

SETPOINT 2.00 mAgenerator off

The line „Setpoint“ blinks.

Use the arrow keys to select the desired set-point of the output current.

Note!If an arrow key is kept pressed down, the setpoint will be changed in increments of 0.1 mA each. Pressing and releasing the key will change the setpoint in increments of 0.01 mA.

The newly selected value will be accepted via the Setpoint key.Abort resetting by pressing the Escape key. The setpoint will not be changed.

SETPOINT 3.05 mA generator off

Display

Activate the output current via the Voltage key. High voltage is present at the output, current flows.

CURRENT 3.05 mAvoltage 23.4 kV

Display

SollwertSetpoint

SollwertSetpoint

SpannungVoltage

activ/active

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4.7 Selecting the output current during operation

CURRENT 3.05 mAvoltage 23.4 kV

With the unit in the „current constant“ opera-ting mode and with high voltage active, the opposite display appears.

Activate the setpoint setting during operation with the Setpoint key.

Setpoint 3.05 mAact. value 3.05 mA

Setpoint blinks.The output voltage of the associated output current continues to be available at the output.

Use the arrow keys to select the desired set-point.

The selected value will be accepted at the output via the Setpoint key.Abort resetting by pressing the Escape key. The setpoint will not be changed.

SollwertSetpoint

SollwertSetpoint

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4.8 Selecting the operating parameters

The above described functions involved in changing the setpoint can be carried out by the user without entering a password.The parameters affecting the operating conditions of the application are only accessible via a password.After entering the password, the following parameters may be adjusted and will be listed automatically in sequence in the menu:• Operating mode• Maximum output voltage/current • Voltage/current limit• Limiting mode (Not available for all versions)• Output limiting signal• Modify setpoint• Automatic start (Not available for all versions)• Ramp time• Bus address• Generator type (Not available for all versions)• External setpoint• Language• External high voltage release• Release via external Setpoint voltage (Not available for all versions)• Software status (display only)

Caution!Modifications of the parameters using passwords may only be carried out by authorized personnel.

Note!Use the Escape key to abort the entry. No changes will be made to the current parameters. Setting the operating parameters will be terminated and the system changes back to the setpoint display. Parameter changes which have already been acknowledged with the Set-point key will remain.

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4.8.1 Entering the password

The password may only be entered with the high voltage disabled.

Programming is now released. This status will be shown by the display message „Operating mode“.

4.8.2 Selecting the operating mode

The generator may be operated in either the „current constant“ or the „voltage constant“ mode. A previously defined current or voltage will be kept constant within the operating limits of 30 kV or 5 mA respectively, even if operating conditions change.

This is followed by the next display message: Select „voltage maximum“ or „current maximum“.


Display

+Keep the key „Increase value“ pressed and press the Setpoint key at the same time.

PASSWORD! !

The password comprises entering the following key commands:

Voltage key

2 x „Lower value“ key

„Increase value“ key

Setpoint key

Operating mode! const. voltage !

Display

Select using the arrow keys.

Operating mode! const. current !

Display

Acknowledge the selected operating mode with the Setpoint key.

SollwertSetpoint

SpannungVoltage

activ/active

SollwertSetpoint

SollwertSetpoint

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4.8.3 Selecting maximum values for voltage and current

If the generator is in the operating mode „voltage constant“, a maximum high voltage rating as required by the application may be selected. The appropriate maximum output current may be selected in the operating mode „current constant“. This value cannot be exceeded when setting the setpoint.This arrangement allows the generator to be adapted to a wide variety of electrode bar configurations and operating modes: example: Web Adhesion: Umax = 20 kV.

E.g. Operating mode „voltage constant“:

In case of „voltage constant“, setting the current maximum is analogous to the above steps.

This is followed by the next display message: Select „current limit“ or „voltage limit“.

Umax 30.0 kV! generator off !

Display

Change the value of the maximum voltage via the arrow keys.

Umax 20.0 kV! generator off !

Display

Acknowledge the selected maximum voltage with the Setpoint key.

SollwertSetpoint

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4.8.4 Selecting voltage or current limits

If the generator is in the operating mode „voltage constant“, a maximum current (the current limit) may be selected. The appropriate voltage limit may be selected in the operating mode „current constant“. This will pre-vent the generator from delivering uncontrolled energy to the consumer.

E.g. Operating mode „voltage constant“:

In case of „current constant“, setting the voltage limit is analogous to the above steps.

This is followed by the next display message: Select „limit mode“.

4.8.5 Selecting the limit mode

Depending on application it might be useful to disable or limit the genera-tor when exceeding the previously selected current or voltage limit. If „switch off“ is selected, the generator will be switched off when reaching the current or voltage limit.

This is followed by the next display message: Output Limit Signal.

limit 5.00 mA! generator off !

Display

Change the current limit values with the arrow keys.

limit 3.00 mA! generator off !

Display

Acknowledge the selected current limit with the Setpoint key.

limitation: type! limiting !

Display

Select the limit mode with the arrow keys.

limitation: type! switch off !

Display

Acknowledge the selected limit mode with the Setpoint key.

SollwertSetpoint

SollwertSetpoint

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4.8.6 Selecting Output Limit Signal

If the current or voltage limit is reached, the generator may transmit a sig-nal during limiting. This signal will be transmitted to the status relay which will drop when reaching the limit.

This is followed by the next display message: Change Setpoint.

4.8.7 Selecting Change Setpoint

In particularly critical applications where the selected setpoint voltage or current must be altered, this option may be used to determine the defined output voltage or output current.

This option used in combination with the remote control prevents unde-sirable or unauthorized setpoint modifications on the generator. The set-point may be modified via the remote control.

This is followed by the next display message: Automatic Start.

limit. signal! active? YES !

Display

Select limit signal YES or NO with the arrow keys.

limit. signal! active? NO !

Display

Acknowledge the selected option with the Set-point key.

change setpoint! enabled !

Display

Use the arrow keys to select Change Setpoint enabled or Change Setpoint disabled.

change setpoint! disabled !

Display


SollwertSetpoint

SollwertSetpoint

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4.8.8 Selecting Automatic Start after mains power failure

Use this option to select if the generator is to start automatically after a mains power failure or if the high voltage is to be set manually.

This is followed by the next display message: Ramp Time.

Warning!If the automatic start is ON, high voltage applies at once immediately after the supply voltage to the generator is switched on.

auto start! OFF !

Display

Use the arrow keys to select the automatic start of high voltage ON or OFF.

auto start! ON !

Display


SollwertSetpoint

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4.8.9 Selecting the Ramp Time

After releasing the high voltage via the Voltage key, the voltage will rise to its preselected setpoint within an adjustable period (the ramp time). The ramp time selection range is between 0…9 seconds.

This option is of significance in externally clocked operation via the high voltage release input or in applications requiring a defined rate of voltage rise.

This is followed by the next display message: Bus Address.

Note!When selecting the setting „0“ the high voltage is moved to its setpoint within the shortest possible time. Depending on load, reaching 30 kV may take 0.5 seconds in the „voltage constant“ mode and as much as 1 second in the „current constant“ mode (this time is reduced for smaller setpoint values).

"Voltage constant" mode: If the generator switches to limit operation during the run-up, the ramp time may be as long as 2 seconds.

„Current constant“ mode:If the generator switches to limit operation during the run-up, the limit value may overshoot briefly and settle after about 2 seconds. With a ramp time larger than 0, overshooting is not expected.

ramp time! 3 s !

Display

Use the arrow keys to set the ramp time.

ramp time! 5 s !

Display

Acknowledge the selected value with the Set-point key.

SollwertSetpoint

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4.8.10 Selecting the bus address

When operating one or more generators over the same remote control, a definite address must be selected for each generator connected. Select-able addresses range from 00…20. Address 00 is the default setting set in the factory. With this setting the generator neither responds to bus signals, nor does it transmit any such signals. This means that individual genera-tors integrated in a bus formation can be disabled.

This is followed by the next display message: Generator Type.

4.8.11 Selecting the generator type

Up to 5 different functional groups can be defined by selecting a generator type. This will allow the user to address selective generators via a remote control and to set individual setpoints or group setpoints. The following predefined function groups:• KNH34• Folder

as well as three free groups are available.

This is followed by the next display message: External Setpoint.

bus address! 00 !

Display

Use the arrow keys to select the bus address.

bus address! 20 !

Display

Acknowledge the selected value with the Set-point key.

generator type! KNH34 !

Display

Use the arrow keys to select the appropriate function group.

generator type! Group 1 !

Display

Acknowledge the selection with the Setpoint key.

SollwertSetpoint

SollwertSetpoint

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4.8.12 Selecting External Setpoint

This setting allows the user to permit setpoint modifications only via the keypad and the CAN bus or via the analog interface. If ON is selected, the generator will accept setpoints only via the analog interface by way of a control voltage 0…10 V or by way of a control current 0…20 mA. Depen-ding on operating mode, the setpoint corresponds to a voltage or current default.

This is followed by the next display message: Language.

4.8.13 Selecting the language

This function may be used to select between 5 different languages for the display messages.The following languages are available:• German (default setting),• English• French• Spanish and• Italian .

This is followed by the next display message: External High Voltage Release.

ext. setpoint! OFF !

Display

Use the arrow keys to select External Setpoint ON or OFF.

ext. setpoint! ON !

Display


Sprache! deutsch !

Display

Use the arrow key to select the appropriate language.

language! english !

Display


SollwertSetpoint

SollwertSetpoint

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4.8.14 External high voltage release

This function allows the user to activate the high voltage not only via the Voltage key and the analog Setpoint input, but also via the external 24 V signal. The 24 V input is electrically isolated. Select NO to activate the high voltage via the Voltage key, via the CAN bus or via the analog Set-point input (see "Release via external Setpoint"), select YES to activate the high voltage only via the external 24 V signal.

This is followed by the next display message: Release via ext. Setpoint.

Note!If the external high voltage release is used, the parameter "Release via ext. Setpoint" must be set for NO (see chap. 4.8.15). Also, the high volt-age cannot be enabled in this operating mode via the Voltage key or the CAN bus.

ext. HV ON/OFF! NO !

Display

Use the arrow keys to select YES or NO.

ext. HV ON/OFF! YES !

Display


SollwertSetpoint

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4.8.15 Release via external Setpoint

This function allows the user to activate the high voltage not only via the Voltage key and the external 24 V signal, but also via the analog Setpoint input. This function can be used, e.g. if only one analog output is available at a remote controlling SPC which controls both the setpoint setting and the high voltage release via the analog interface.The high voltage turn-on threshold is at 10% of the setpoint (correspond-ing to 1 V at the voltage input/pin3 analog interface or to 2 mA at the current input/pin4 analog interface). In this operating mode, this results in a setting range of between 10-100% (3-30 kV / voltage constant resp. 0.5-5 mA/current constant) of the Setpoint.

To be able to activate this function, the parameter must be set for YES and the parameter "Ext. Setpoint" must be set for ON (see chap. 4.8.12.).

This is followed by the next display message with Version number and date.

Note!If the function Release via external Set-point is used, the parameter "ext. HV ON/OFF" must be set for NO (see chap. 4.8.14). Also, the high voltage cannot be enabled in this operating mode via the Voltage key or the CAN bus.

Release via ext.! setpoint : NO !

Display

Use the arrow keys to select YES or NO.

Release via ext.! setpoint : YES !

Display


SollwertSetpoint

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4.8.16 Version number and date

The last display page in the menu Selecting the Operating Parameters shows the version number and the date of the current software.

4.9 Loading the default settings

When starting the unit for the first time or when operating the mains switch and the Escape key at the same time, the default settings will be loaded from the programme memory.

V 4.41! 30.03.2003 !

Display

Use the Setpoint key to complete the entry of the operating parameters.

MAINS SWITCH +Operate MAINS SWITCH and Escape at the same time.

The default settings will now be loaded.The default settings are shown in the table in chap. 4.3.

SollwertSetpoint

AbbruchEscape

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5. MaintenanceWarning!Electric shock hazard!• Do not carry out any maintenance or repair work without first switching

off the high voltage generator and disconnecting the supply voltage.• The machine which has the units fitted must not be in operation.• Repairs and maintenance work must be carried out by qualified person-

nel only.

High voltage generator

The high voltage generator does not require any special maintenance. Check the appliance for proper function at regular intervals. Keep the cooling ribs clean.

Charging bars

To ensure the proper function of the charging bars, clean weekly with compressed air free of oil and water (max. 6 bar) and a non-metallic brush.

Remove encrusted dirt (e.g. grease, adhesive, ink, etc.) from the charging bars with cleaning gasoline. Do not immerse the electrode bars and the high voltage cable in solvent!

Warning!Risk of deflagration!Wait until the solvent has evaporated before restarting the generator.

Caution!Do not damage the emission tips of the charging bars.

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6. WarrantyThe units are warranted for a period of 12 months provided that the oper-ating conditions have been maintained, that the units have not been tem-pered with and that the units show no mechanical damage.

The warranty applies only if the operating and assembly instructions spec-ified by Eltex have been observed. The warranty period begins on the date of delivery.

In the event of defects occurring during the warranty period, the units or defective components will be repaired at Eltex. Defective components will be replaced and installed free of charge.

If repairs are required at the customer's premises, the costs for sending a technician (travel, travel time, expenses) will be charged to the customer.

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7. TroubleshootingWarning!Electric shock hazard!• Do not carry out any maintenance or repair work without first switching

off the high voltage generator and disconnecting the supply voltage.• The machine which has the units fitted must not be in operation.• Repairs and maintenance work must be carried out by qualified person-

nel only.

Defect/Error Defect/Cause Remedy

Generator cannot be switched on

• Defective fuse.• Supply voltage not con-

nected.

Replace fuse (fuse type see name plate).Connect or activate supply voltage

Error text: 01 Limiter

Limiter set for „switch off“, selected value is exceeded.

• Investigate cause why limit value was exceeded

• If necessary, increase limit value.

Error text: 02 Flash count 1

5 high-power discharges within 20 seconds.

• Reduce output voltage.• Clean electrode bars.(error acknowledgement blocked until cascade has cooled down)

Error text: 03 Flash count 2

Processor measuring range was exceeded.

• Reduce output voltage.• Clean electrode bars.• Check high voltage cables.

Error text: 04 Short-circuit

Short-circuit detected (with a current of >5 mA and a volt-age of <150 V).

Disconnect consumers one after the other and localize short-circuit.

Error text: 05 Missing volt.

Error in high voltage genera-tion.

Notify Eltex Service Department.

Error text: 06 Ext. analog

Error in analog interface during test run.

Occurs only in the test programme.

Error text: 07 HV Relais

Error in analog interfaceduring test run.

Occurs only in the test programme.

Error text: 11 Calibration

Defective or no calibration data in EEPROM.


Error text:12 EEPROM error

Error in EEPROM. Notify Eltex Service Department.

Error text: 13 +15 V missing


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Error text: 14 –15 V missing


Error text: 15 Polar. error

Notify Eltex Service Department

Error text: 16 SYS damaged

System data error,corrected automatically.

If occurring frequently, notify Eltex Service Department.

Error text: 17 CALI damaged

Calibration data error, corrected automatically.

If occurring frequently, notify Eltex Service Department

Error text: 18 General error

General error. Switch appliance off and on again, notify Eltex Service Department

Error text:23 Eprom error

Error in the checksum of the EPROM.

Occurs only in the test program.

After remedying the cause of the malfunction, the generator will be operational again after pressing the Escape key (only errors 01…04).

Defect/Error Defect/Cause Remedy

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8. Technical specifications

Output voltage 0…+30 kV ±0.2 kV DC (accuracy 2% v.E.) (KNH34P__)0…–30 kV ±0.2 kV DC (accuracy 2% v.E.) (KNH34N__)Display resolution 100 V, Adjustable in increments of 100 V

AC component of the output voltage <3% at Umax and Imax

Output current 0…5 mA ±0,05 mA (accuracy 2% v.E.)Display resolution 10 µA, Adjustable in increments of 10 µA

Operating modes Current constant, voltage constant, System deviation <2%

Feedback control I-controller adapting to load

Supply voltage 230 VAC ±10%, 50 Hz (KNH34_2_)115 VAC ±10%, 60 Hz (KNH34_1_)

Fuse See name plate

Power input max. 250 VA

Enclosure Sheet metal steel, 1.5 mm, enamelled, aluminium anodised

Protection class IP 54

Operating ambient temperature +5…+40°C (+41…+104°F)

Storage temperature –20…+70°C (–4…+158°F)

Ambient humidity max. 80% rel. no dewing

Dimensions with wall mounting 410 x 212 x 135 mm (H x W x D)

Weight 10,5 kg

TÜVRheinland

Product SafetygeprüfteSicherheit

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9. Dimensions

Fig. 15:Dimensions high voltage generator KNH34

Z00

373y




KNH 34

386

M8

M8

M6

M6

2,5

17041

0

128

330

>100

212

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10. Spare parts list and accessories

Article Article No.

High voltage cable 50 kV, with flexible tubing, precut with mul-tiple-spring wire plug and terminal adapter (specify length, distributor box or consumer) KA/R___Plug analog interface for internal cable diameter 5.5 mm, ext. 7.5 mm (in additional for each 1 x ELM01037 is needed) ELM01036Grounding sleeve for internal cable diameter 5.5 mm, ext. 7.5 mm ELM01037Interface cable analog interface generator, cable ends on cos-tum side open (specify cable length) KS/B___CAN bus cable with CAN bus plug on both ends, 1x male, 1x female (specify cable length) KS/A___Set for preparing the high voltage cable for 30 kV charging bars with flexible tubing PG9 104165Set for preparing the high voltage cable for 60 kV charging bars with flexible tubing PG9 104171Hexagonal crimper, 5.41 mm 102952High voltage distributor box, for max. 4 components KNHV3Fuse clip, mains power cable ELM00545Generator mounting MCH08667Bolts for generator mounting MSR00209Mains power cable Standard (specify cable length) KN/AA___Mains power cable Switzerland (specify cable length) KN/AB___Mains power cable USA (specify cable length) KN/AC___Mains cable without plug, costum side open(specify cable length) KN/AD___Protective cap, high voltage output MCH08542Protective cap, analog interface ELM01114Protective cap, cable box analog interface 101901Protective cap, CAN bus male ELM01115Protective cap, CAN bus female ELM01116Operating instructions (specify language) BA-3010Terminating connector, CAN bus, male BSB10291Terminating connector, CAN bus, female BSB10292Remote control KNHFB

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Eltex-Elektrostatik-Gesellschaft mbHBlauenstraße 67, D-79576 Weil am RheinPhone +49 (0) 76 21/ 79 05 - 0Fax +49 (0) 76 21/ 79 05 - 310eMail [email protected] www.eltex.com

Eltex officesand agenciesThe addresses of allEltex agencies can be

found on our website atwww.eltex.com

Z010

07y

Documents

Ba-e-3010-0408_knh34 Rautes Elektrostatikos Valdikliai + Ir