WPC 1000 User Manual 1125100
Troubleshooting 5-17
Overrun Limit Switch Test Angle Fault
Problem: The overrun limit switch was not closed during the overrun sensor closure test
window (see step 12, page 3-10) or open at 180°.
Remedy: The resolver drive may have slipped or broken. If this is the case, the resolver
needs to be repaired or replaced. If the resolver drive checks out, also check the
wiring and installation of the resolver (see Installing the Resolver, page 2-22).
Check the diameter of the shaft on which the magnet is mounted to make sure
there is enough dwell for the switch to provide an adequate signal (see Planning
Your Overrun Sensor Installation, page 2-26). An ideal diameter is 4 to 6 in. If the
shaft is larger than this, mount the magnet on a shaft with a smaller diameter.
Check installation of the overrun sensor and magnet and wiring of the overrun
sensor, referring to Installing the Overrun Limit Switch, page 2-25 and Mounting
the Overrun Sensor Magnet, page 3-11.
Overrun Limit Switch Setting Fault
Problem: The angle range (e.g., 271° to 300°) within which the Top-stop “On” Angle must
fall have not been set correctly on option switches 1 and 2.
Remedy: Set switches 1 and 2 for the correct Top-stop “On” Angle window, referring to
Table 3-3, page 3-9. If the error persists, contact Wintriss Tech. Support.
Internal Memory Failures
- or -
Problem: There is a problem with the main or second processor on the WPC 1000 Control
board. The board may need to be serviced or replaced.
Remedy: Press Reset/Select. If the error persists, contact Wintriss Tech. Support for
assistance or replacement of the Control board or firmware chip.
F88 or H88
F89 or H89
F90* through F98*
H90* through H98*
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