Description
1 Scope
These Application Notes are a guide to applying the
G122-829A001 P-I Servoamplifier. These Application Notes
can be used to:
Determine the closed loop structure for your application.
Select the G122-829A001 for your application. Refer also
to data sheet G122-829.
Use these Application Notes to determine your system
configuration.
Draw your wiring diagram.
Install and commission your system.
Aspects, such as hydraulic design, actuator selection, feedback
transducer selection, performance estimation, etc. are not
covered by these Application Notes. The G122-202 Application
Notes (part no C31015) cover some of these aspects. Moog
Application Engineers can provide more detailed assistance,
if required.
2 Description
The G122-829A001 is a general purpose, user configurable,
P-I servoamplifier. Selector switches inside the amplifier enable
either proportional control, integral control, or both to be
selected. Many aspects of the amplifier’s characteristics can
be adjusted with front panel pots or selected with internal
switches. This enables one amplifier to be used in many
different applications. Refer also to data sheet G122-829.
18 Specifications
Function: P, I, or P & I, switch selectable.
Input 1: Connects to error amp via 94k.
Scaled to 95V max with switch
selectable lag of 55mS.
Input 2: Differential 4-20mA or ±10V,
switch selectable.
Connects to error amp via R34.
±15V max.
Rin = 390k – ±10V.
Rin = 240R – 4-20mA.
R34 is plug-in, 100K (default).
Input 3: Connects to summing amp via R33.
R33 plug-in. ±10V gives ±100% valve
drive when R33 = 10k Ohm, ±10% when
R33 = 100k Ohm.
Feedback input: Differential 4-20mA or ±10V,
switch selectable.
±15V max.
Rin 100k – ±10V.
Rin 240R – 4-20mA.
Feedback amp: Zero, ±10V.
Gain, 1 to 10.
Derivative (velocity) feedback via
plug-in resistor R16 and fixed capacitor.
Transducer excitation: +10V @ 10mA max.
Error amp: Unity gain.
Bias ±1.5V.
Proportional amp gain: 1 to 20 with R17 = 100k (default).
Max gain 2000 with R17 = 10M.
Integrator gain: 1 to 45 per second.
Integrator input: Switch selectable from output of unity
gain error amp or proportional gain amp.
Enable: Relay, +24V @ 8mA, 17 to 32V.
Output amp: Switch selectable voltage, current or
4-20mA, single ended output, return
to ground.
V. ±10V, minimum load = 200 Ohm.
I. ±5, 10, 20, 30, 50mA to a maximum
of ±100mA.
max load = 11V – 39 Ohm
I (Amp)
4-20mA. Max load 500R.
Step push button: -50% valve drive disturbance.
Valve supply: Terminal 23, 300mA max.
In position: ±10% of valve drive. 20mA and 40V max
output to PLC.
Front panel Vs, internal supply – green
indicators: Valve drive positive – red
negative – green
Enable – yellow
In position – green
Front panel Valve ±10V (regardless of output
test points: signal selection)
Feedback amplifier output
signal 0V
Front panel Input 1 scale
trimpots: Error amp bias
(15 turns) P gain
I gain
Dither level
Feedback amp gain
Feedback amp zero
( )
Dither: 200 Hz fixed frequency.
±10% valve drive. Switch selectable
on/off.
Supply: Terminal 1,
24V nominal, 22 to 28V
75mA @ 24V, no valve current,
200mA @ 100mA valve current.
±15V output: Terminals 14 and 15,
± (110mA – max valve current).
Wire size range: 0.2mm2 to 2.5mm2
(24AWG to 12AWG).
Recommended M205, 250mA T (slow blow) fuse
supply protection: compliant to IEC127-2 sheet 3.
If terminal 23 is used to power a
proportional valve, the fuse should be
increased to cater for the extra current.
Mounting: DIN rail, IP 20
Temperature: 0 to +40ºC
Dimensions: 100W x 108H x 45D
Weight: 180g
CE mark: EN50081.1 emission
EN61000-6-2 immunity
C tick: AS4251.1 emission
19 Internet
www.moog.com/dinmodules
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