Troubleshooting
6-60 Manual # 42-02-7223 C1
Machine Room Stop Switch Open, MR STOP SWITCH OPEN
Description: The machine room stop switch input has dropped.
Car Reaction: Emergency stop if running. The car is not allowed to run until the problem is corrected.
Tro ubleshooting:
1. Check the Machine Room stop switch on the front panel of the iBox.
Main Floor Smoke Sensor Recall, MAIN FLOOR SMOKE
Description: Recall to the alternate fire floor due to active or latched smoke detector inputs from the main
floor.
Car Reaction: Car proceeds to the user-defined alternate fire recall floor. Once at the recall floor, door opera-
tion is according to the user-defined door operation under fire recall operation.
Tro ubleshooting:
1. If in error, inspect the sensor input and connections.
2. Related Inputs: Main floor smoke and fire sensors as indicated on job print drawing(s) -1.
Motion Start Fault, MOTION START FAULT
Description: Car initiated movement but was unable to start for more than ten seconds.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Tro ubleshooting:
1. Determine mechanical or other reason car is unable to start.
Motion Stopped Due to IO Toggle Test, MOTION STOPPED-IO TST
Description: iBox requested start of motion while a toggle test was being performed.
Car Reaction: None. iBox will resend request.
Tro ubleshooting: NA
Motor Contactor Driver Proofing Fault, MOTR CNTR DRV PRF FLT
Description: Fault signal for motor contactor driver proofing circuits.
Car Reaction: None
Tro ubleshooting:
1. Verify motor contactor driver proofing circuits.
2. Check the coil of the motor contactor.
Motor Contactor Proofing Fault, MOTOR CNTR PROOF FLT
Description: Fault signal for motor contactor proofing circuits.
Car Reaction: None
Tro ubleshooting:
1. Verify motor contactor proofing circuits.
Motor Field Forcing Timed Out, MF FORCING TIMED OUT
Description: DC motors only. The motor field was being forced for over 1 minute.
Car Reaction: Stop the run. Restart.
Tro ubleshooting:
1. The motor field starts forcing if there is a demand and the doors are closing. Check that the doors are
not obstructed and/or that passengers are not holding the doors open past the 1 minute limit.
Motor Limit Protection Timer Elapsed, MOTOR LMT TIMED OUT 2
Description: A fault is generated is the system requests movement for more than ten minutes but no move-
ment is detected.
Car Reaction: Currently for informational purposes only.
Table 6.3 iControl Messages
iControl Messages
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