The G122-829A P- I Servoamplifier is used in closed loop applications where a proportional and/or integral amplifier is needed. Selector switches inside the amplifier enable proportional, integral or both to be selected. Many aspects of the amplifier’s characteristics can be selected with internal switches. This enables one amplifier to be used in many different applications. The configuration options provided are the result of many years of experience in designing and commissioning closed loop systems.The Servoamplifier employs analog electronics. It accepts three input signals, one single ended and two differential.These are summed to produce an error signal which is then amplified proportionally and also integrated. The proportional and integral signals are switched together and output as a current or voltage to drive a servovalve.Front panel trim pots, LED indicators and test points allow fast and easy setup and aid in trouble shooting. The servoamplifier is housed in a compact DIN rail mounting enclosure and requires a +24V DC supply.

switch selections• Input1,lagonoroff• Feedbackinput4-20mAor±10V• Input2,4-20mAor±10V• Proportionalcontrol,integralcontrolorboth• Integratorinputfromunitygainoramplifiederrorsignal• Integratorlimit• Output±current,±voltageor4-20mA• Outputcurrentlevel• Ditheronoroff

plug-in resistors• Input2=100kfor±10V• Feedbackderivativeterm=notloaded• Proportionalgainrange=100kfor1to20range• Input3directtooutputamp=notloaded• Sum&limitamp=10kforunitygain

ADVAntAges• P,IorP&Icontrol• UserfriendlyfrontpanelwithLEDsandtestpoints

• Inputoptions,twodifferentialandonesingleended

• Selectablevalvedrivesignals• Steppushbuttonfortuning• Optionalfeedbackderivativeterm• “Inposition”output• Dither• Enableinput• CompactDINrailhousing• CEmarked

g122-829Ap-I serVo AMpliFier

WHAT MOVES YOUR WORLD

speciFicAtions

+15V

-15V

TP

Power Sup

ply

1 2

Outpu

t Amp

TP valve

11

LED

valve

LED

Vs bias

7 8

100K

65

10K

47K

47K

2617 18

4-20mA

100K

feed

back lead

Feed

back Amp

TPfeed

back

gain

zero

2019Tran

sduc

erEx

citatio

n

+dither Dith

erOscillatordither

Error A

mp

Av=

1

P gain

LED

enab

le

EP

gain

P Gain Amp

Integrator

INT

PR

In Position

Com

parator12 3 4 31 32 2223 24

499R

scale

Integrator inpu

tselect

cmd lag N.F.

R16

N.F.

R17

100K

R34

9

+24V

0VSupp

ly

16

sign

al +

sign

al -

Inpu

t 2

13

sign

al

0Vref

Inpu

t 1

27

+10V

0V

Typical

Feed

back Inpu

t

see no

te 1

see no

te 1

see no

te 1

see no

te 1

+

see no

te 1

PLC

+24V

Ena

ble

+24V

In position

see no

te 1

1310

B D E FAefb Va

lve

Typical D

66X

Prop. valve

spoo

lsee no

te 2

mfb Valve

Con

nect to

Note: 1

. Con

nect cab

le scree

n to enclosure cab

le gland

or cha

ssis groun

d term

inal on G12

2-82

9

+24V

25

0Vref

1K

+24V

+24V

14+1

5V

15-15V

28

lim

2.2u

F

+10V

+

Note: 2

. Con

nect spo

ol (p

in F) to term

inal 22,

only if th

e spoo

l signa

l is a curren

t.

pins 31 & 32.

+

+

-50%

Step

P.B.

R33

5mA

10mA

20mA

30mA

50mA

+24V

enab

le

240R

100K

100K

100K

100K

200R

100R

51R

33R

20R

VV

V

V= 1V

39R

Note: 3. S

witche

s show

n in defau

lt shipping

mod

e.

Av=

10

390K

linea

r pot

feed

back

21

V

V

Inpu

t 3

Sum &

Limit Amp

sign

al

250m

AT fuse

+ -+

SW6:1

SW5:1 to 4

SW4:1

SW6:3

SW6:4

SW6:2

SW4:2

[SW1:4]

[SW1:3]

[SW1:2]

SW3

SW1-X

SW2

SW2

SW2

Note: 4. [ ] indicates bo

ttom boa

rd.

10K

10K

100K

R27

10K

-

4-20mA

SW7:1&

2-V

240R

390K

-Vr

390K

Pin 8

390K

BlocK wiring DiAgrAM

WHAT MOVES YOUR WORLD

speciFicAtions

speciFicAtions

WHAT MOVES YOUR WORLD

Function P,I,orP&I,switchselectable

Input 1 Connectstoerrorampvia94kScaledto95Vmaxwithswitchselectablelagof55mS

Input 2 Differential4-20mAor±10V,switchselectableConnectstoerrorampviaR34±15VmaxR in=390k–±10VR in=240R–4-20mAR34isplug-in,100K(default)

Input 3 ConnectstosummingampviaR33R33plug-in±10Vgives±100%valvedrivewhenR33=10kOhm,±10%whenR33=100kOhm

Feedback input

Differential4-20mAor±10V,switchselectable±15VmaxR in100k–±10VR in240R–4-20mA

Feedback amp Zero,±10VGain,1to10Derivative(velocity)feedbackvia0plug-inresistorR16andfixedcapacitor

Transducer excitation

+10V@10mAmax

Error amp UnitygainBias±1.5V-3dB@723Hz

Proportional amp gain

1to20withR17=100k(default)Maxgain2000withR17=10M

Integrator gain

1to45persecond

Integrator input

Switchselectablefromoutputofunitygainerroramporproportionalgainamp

Enable Relay,+24V@8mA,17to32V

Output amp Switchselectablevoltage,currentor4-20mA,singleendedoutput,returntoground•V.±10V,minimumload=200Ohm•I.±5,10,20,30,50mAtoamaximumof±100mA

maxload=11V–39Ohm I(Amp)

•4-20mA.Maxload500R

Step push button

-50%valvedrivedisturbance

Valve supply Terminal23,300mAmax

In position ±10%ofvalvedrive20mAand40VmaxoutputtoPLC

Front panel indicators

Vs,internalsupply–greenValvedrivepositive–red

negative–greenEnable–yellowInposition–green

Front panel test points

Valve±10V(regardlessofoutputsignalselection)Feedbackamplifieroutputsignal0V

Front panel trimpots (15 turns)

Input1scaleErrorampbiasPgainIgainDitherlevelFeedbackampgainFeedbackampzero

Dither 200Hzfixedfrequency±10%valvedriveSwitchselectableon/off

Supply Terminal1,24Vnominal,22to28V,200mAmax

±15V output Terminals14and15,±(110mA–maxvalvecurrent)

Wire size range

0.2mm2to2.5mm2(24AWGto12AWG)

Recommended supply protection

M205,250mAT(slowblow)fusecomplianttoIEC127-2sheet3Ifterminal23isusedtopoweraproportionalvalve,thefuseshouldbeincreasedtocaterfortheextracurrent

Mounting DINrailIP20

Temperature 0to+40ºC

Dimensions 100Wx108Hx45D

Weight 180g

CE mark EU2011/65/EURoHSEU2014/30/EUEMCEN61000-6-4:2007emissionEN61000-6-2:2005immunity

RCM EN61000-6-4:2007emission

( )

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e-mail: info@moog.com

www.moog.com/industrial

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DIN P-I Servo Amplifier Moog Aust/PDF/0418

This technical data is based on current available information and is subject to change at any time by Moog. Specifications for specific systems or applications may vary.

orDering inForMAtionP-I Servo Amplifier G122-829A001 Delivery includes P-I Servo Amp, DIN fuse holder,

2 x M205 250 mA T fuses and a 6 page application note.