GE Industrial Solutions AF-650 GP General Purpose Drive Programming Guide - Manual (Page 10)

1.6 Electrical Wiring
1.6.1 Electrical Wiring - Control Cables
Illustration 1.2 Basic Wiring Schematic Drawing.
A=Analog, D=Digital
Terminal 37 is used for Safe Stop. For Safe Stop installation instructions, refer to the Design and Installation Guide DET-767.
*The brake chopper factory option must be ordered to use dynamic braking resistors
**This is available when ordering the brake chopper option on unit size 23 and above drives.
Very long control cables and analog signals may in rare cases and depending on installation result in 50/60 Hz earth loops
due to noise from mains supply cables.
If this occurs, it may be necessary to break the screen or insert a 100 nF capacitor between screen and chassis.
The digital and analog inputs and outputs must be connected separately to the common inputs (terminal 20, 55, 39) of the
frequency converter to avoid ground currents from both groups to affect other groups. For example, switching on the
digital input may disturb the analog input signal.
Introduction AF-650 GP Programming Guide
DET-618C 9
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