Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 508)

Section 9A
Operator Interface
9A-41
The Hand Pulse Generator (HPG) is a hand wheel used for manual
operation of the the control’s axes. The HPGs are generally used to jog
axes into position. The operator panel power supply provides power for
three Hand Pulse Generators.
The HPG is composed of two parts, the HPG itself and the HPG interface
board. The HPG interface board is used to interface the HPG with the
fiber optic I/O ring. Fiber optic cables are connected to the optical receiver
(black) and transmitter (red) on the HPG interface board. The fiber optic
cables and connectors are supplied by the system installer. For more
information on fiber optics refer to page 7B-1.
Figure 9A.23 shows the HPG (Hand Pulse Generator).
Figure 9A.23
HPG (Hand Pulse Generator)
Front
Bottom
Side
I/O Ring Fault Indicator
DIP switch
Fiber optic connectors
+5V dc terminal
Common terminal 11271-I
9A.5
HPG (Hand Pulse Generator)