Pierce CP600 - Auto Reverse Problems; Machine Does Not Start in FWD or REV; No Auto Stop Functionality; Shutdown Due to Alignment Safety

CP600 Pivot Operators Manual
OPERATION, SAFETY & MAINTENANCE
Section 1-34
© Pierce Corporation
July 2010
Symptom
Possible Cause
Solution
Auto Reverse Problems
Machine does not change directions at barricade
1. End tower auto reverse box and/or cables are misadjusted 2. Loose wire in the auto reverse (Yel w/Red stripe) circuit 3. Direction switch not in the Auto position 4. Auto reverse option incorrectly wired in the control panel 5. Bad auto reverse latching relay in the control panel
1. Ensure Forward and Reverse switch in auto reverse junction box actuate before Safety switch actuates when manually depressing trip arms 2. Check connections in control panel, collector ring, and in each tower box 3. Refer to the Auto-Reverse/Au to-Off Option section of the Manual for proper switch settings 4. Compare wiring to diagrams in the Options section of the Manual 5. Actuate the DIR switch to test relay. If relay does not actuate, check for voltage at relay coil when DIR switch is actuated. If voltage is present, replace the latching relay
Machine does not start in FWD or REV
1. Auto reverse latching relay is in the wrong state
1. Actuate the DIR switch to change the state of the relay, then attempt to Start the machine. Refer to the Auto-Reverse/Auto-Off Option section of the Manual for proper switch settings
No auto stop functionality
1. Switches on control panel set incorrectly 2. Auto reverse option incorrectly wired in the control panel
1. Refer to the Auto-Reverse/Auto-Off Option section of the Manual for proper switch settings 2. Compare wiring to diagrams in the Options section of the Manual
Machine shuts down due to an alignment safety when changing direction at a barricade
1. Safety delay timer not set correctly 2. Improperly wired safety delay timer 3. Bad safety delay timer
1. Ensure safety delay timer in control panel is set to 50% and 3s to provide 1.5 seconds of safety dropout delay 2. Check delay timer wiring using diagrams in the Electrical section of the Manual 3. If delay timer is adjusted correctly and wired properly, replace the delay timer
Troubleshooting