G122-829A-001 P-I Servoamplifier

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.

A horizontal DIN rail, mounted on the vertical rear surface of an industrial steel enclosure, is the intended method of
mounting. The rail release clip of the G122-829A001 should face down, so the front panel and terminal identifications
are readable and so the internal electronics receive a cooling airflow.
An important consideration for the placement of the module is electro magnetic interference (EMI) from other equipment
in the enclosure. For instance, VF and AC servo drives can produce high levels of EMI. Always check the
EMC compliance of other equipment before placing the G122-829A001 close by.
3.2 Cooling
Vents in the top and bottom sides of the G122-829A001 case provide cooling for the electronics inside. These vents should
be left clear. It is important to ensure that equipment below does not produce hot exhaust air that heats up the G122-829.