WPC 2000 User Manual 1128500
Troubleshooting 5-7
Operational Faults
Problem: The main motor has been turned off.
Remedy: Turn the motor back on, clearing the “Loc” message first if the motor was
deactivated during Lockout (see page 5-3). If the motor won’t turn on, you may
need to replace the Forward contact blocks on the starter with new, unused ones.
Problem: The resolver moved when the output relays to the Dual Safety Valve (DSV) were
off (i.e., open) and the DSV was de-energized.
Remedy: Check clutch, brake and DSV components for correct operation. Correct or repair
any malfunction.
Problem: The Emergency Stop button on the WPC 2000 Operator Station has been
depressed or the E-Stop circuit was open after initiation of the stroke.
Remedy: If another control is connected to the WPC 2000 E-stop circuit, refer to the user
manual for that control to check for a specific error condition, and correct the
error.
F10
This code is not displayed when Two-hand Inch operating mode is selected to enable Dead Motor
Inch.
F11*
CLEARING “LOC” MESSAGE
To clear the “Loc” message, do the following:
1. Turn the Stroke Select switch to “OFF”
2. Turn the Stroke Select switch to “INCH”.
F13
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