Curtis 1207B Manual
19
2 9 J U N E 2 0 1 2 D R A F T
After a problem has been diagnosed and corrected, clearing the fault
history file is advisable. This allows the controller to accumulate a new file of
faults. By checking the new fault history file at a later date, you can readily
determine whether the problem was indeed completely fixed.
To clear the fault history file, select the Clear Fault History menu (Fault
» Clear Fault History). The programmer will prompt you to acknowledge or
cancel. See Section 6 for more detail on programmer operation.
TESTING THE FAULT DETECTION CIRCUITRY
Specific material handling directives, such as prEN1175, require periodic testing
of the controller’s fault detection circuitry. It is recommended that each time
the vehicle is serviced, the M- fault detection circuitry be checked as follows:
1. Put the vehicle up on blocks to get the drive wheel(s) off the ground,
disconnect the battery, and make sure the keyswitch is off.
2. Using an inline fuse holder fitted with a 10 A fuse and alligator clips,
connect the controller’s M- and B- terminals.
3. Turn the keyswitch on, release the brake, and apply the throttle. The
motor should not operate, and the direction contactors should not
pull in.
4. Leave the keyswitch on and remove the inline fuse wire. The vehicle
status should continue to remain off.
5. Cycle the keyswitch off and on, release the brake, and apply the
throttle. The vehicle should now operate normally.
4 — MAINTENANCE
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