Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD - Manual (Page 106)

Troubleshooting
Chapter 7
7Ć22
CAM LIMIT SWITCH Ć TRANSITION TO NEAR TOP ZONE MESSAGES (cont'd)
HEX
CODE
TYPE PROBLEM CORRECTIVE ACTION
0A6
0A7
L RUNĆON CAM SWITCH BOUNCED OR MOTION REVERSED"
(ALT CHASSIS)
During single stroke or continuous mode, only forward motion is
allowed. The PM saw that it was in transition to the near top
zone, and then saw the runĆon cam input come back on possible
showing reverse motion.
See Standard Corrective Action **. Also check for proper
clutch operation.
DIAGNOSTIC MESSAGES
F1 L LOST COMMUNICATION BETWEEN 1771ĆPM MODULES" Check rack communication cable. Cycle rack power.
F2 L LOST COMMUNICATION TO PROGRAMMABLE
CONTROLLER"
Check rack communication cable. Check for proper rack
and scanner configuration. Check for potential electrical
noise problem. Cycle rack power.
AA L ALL CAM SWITCHES TURN OFF. 1. Disconnected ground to 1771ĆIA module. Disconnected
power to CAM switches,. disconnected swingarm to
1771ĆIA. bad 1771ĆIA module.
2. Press ResetĆlatchedĆmsg PB.
A8 N CAM SWITCHES CANNOT DETECT SHAFT POSITION. Same as AA except not a latchedĆmessage code.
A9 N ALL CAM SWITCHES ARE OFF. NEVER DETECTED ON. Same as A8.