Description
The G122-824 P-I Servo Amplifier is used in closed-loop applications where a proportional and/or integral amplifier is required.
The amplifier’s internal selector switch selects proportional, integral, or both. Many of the characteristics of the amplifier can be selected by the internal switches.
Thus, one amplifier can be used for many different applications. The configuration options offered are the result of many years of experience in the design and commissioning of closed-loop systems.
The servo amplifier uses analogue electronics. It accepts three input signals, two single-ended and one differential.
These signals are summed to produce an error signal, which is then scaled and integrated. The proportional and integral signals are switched together and output as current or voltage to drive the servo valve.
Trim potentiometers, LEDs and test points on the front panel allow www.abb-drive.com for quick and easy setup and aid in troubleshooting.
The servo amplifier is housed in a compact DIN rail mounted enclosure and requires +24V power.
Functions
P, I or P & I control
User-friendly front panel with LEDs and test points
Single-ended input, 4-20 mA or ±10 V, selectable by switch
Single-ended inputs, expandable
Differential Inputs with Zero and Gain
Feedback Sensor Excitation Output
Step Button
Selectable Feedback Derivative Terminology
‘In-position’ output
Jitter
Enable Input
Compact DIN rail housing
CE Marking
Switch Selection
Input 1 On or Off
Feedback input 4-20 mA or ±10 V
Input 2 4-20 mA or ±10 V
Proportional control, integral control or both
Integrator input from unity gain or amplified error signal
Integrator limit
Output current or voltage
Output current level
Dither on or off
Plug-in resistor
Input 2 = 100k for ±10 V
Feedback derivative term = unloaded
Proportional gain range = 100k, 1 to 20 range
Input 2 directly connected to output amplifier = not loaded
Ordering Information
P-I Servo Amplifier G122-824-002
Special configurations are available. Consult your Moog sales office for details.
The G122-824-002 is a functional replacement for the -001 version. It adds a 4-20 mA option for input 2. an output step button, and improved thermal performance.
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