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Motion Control Engineering Nidec iControl

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6-35
iControl Messages
iControl AC
6
Excessive Faults Shutdown, EXCESSIVE FAULTS
Description: Generated if car already at a floor or reaches a floor when Excessive Faults Warning
detected. Also if there are another five faults that resulted in an emergency, controlled or ASAP stop as car
was trying to reach a floor after an Excessive Faults Warning fault (see also Excessive Faults Warning).
Car Reaction: Emergency stop: Motor and brake contactors immediately dropped. Doors cycle if at a floor.
Latching fault. Clear by pressing iBox Fault Reset, toggling Inspection or cycling power to controller.
Troubleshooting:
1. Check Event Log to see what drive faults were generated before this fault was triggered. Refer to those
drive faults for troubleshooting information.
Excessive Faults Warning, EXCESSIVE FLTS WARN
Description: Excessive number of faults detected. Generated when there are more than five faults that
resulted in an emergency, controlled or ASAP stop. Resets if car makes ten normal runs without faults.
Car Reaction: Car taken out of service. All registered calls canceled. Car proceeds to next available floor with
an opening and cycles doors. Once at a floor, “Excessive Faults Shutdown” fault is activated and car will
remain shut down until iBox Fault Reset button pressed, Inspection toggled or power to controller cycled.
Troubleshooting:
1. Check Event Log to see what drive faults were generated before this fault was triggered. Refer to those
drive faults for troubleshooting information.
Excessive Motor Field Feedback Fault, EXCESS MF FDBK FAULT
Description: Excessive current detected flowing through motor field. Threshold is set to 85% of forcing cur-
rent for more than 4 seconds. If fault is recurring, excessive faults will be generated and motor field module
will be disabled.
Car Reaction: Emergency Stop.
Troubleshooting: Problem may be related to faulty motor field module, faulty iBox, or invalid motor field cal-
ibration.
1. If excessive faults (fault) has been generated, module is disabled and should not be outputting any volt-
age. If this is not the case, there may be a problem with motor field module.
2. Calibrate motor field. During calibration, current and voltage should start at their maximum value and
decrease as calibration proceeds. If this is not the case, there may be a problem with the iBox.
Excessive Relevels Fault, EXCESS RELEVELS FAULT
Description: The car has failed to relevel after ten attempts.
Car Reaction: Cancel all calls and shutdown. Doors are cycled and car remains shutdown until fault is reset
by pressing iBox Fault Reset button, toggling Inspection or cycling power to controller.
Troubleshooting:
1. Check for mechanical or other failure preventing proper releveling.
2. Adjust brake and motor control during releveling with a full load in the car.
Excessive Restarts Fault, EXCESS RESTARTS FAULT
Description: Elevator has attempted to start movement from the same floor successively an excessive num-
ber of times. Fault is issued after twenty-five attempts. Counter is reset if car makes one successful run.
Car Reaction: Cancel calls and shutdown. Doors cycled and car remains shutdown for five minutes after first
fault or until fault is reset by pressing iBox Fault Reset, toggling Inspection or cycling power to controller.
Troubleshooting:
1. Check for mechanical or other failure preventing car from moving away from floor the floor.
Excessive Restarts Warning
Description: Elevator has attempted to start movement from the same floor successively an excessive num-
ber of times. Fault issued after ten attempts. Counter is reset if car makes one successful run.
Car Reaction: None.
Troubleshooting:
1. Check for mechanical or other failure preventing car from moving away from floor the floor.
Table 6.3 iControl Messages
iControl Messages

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