iControl Messages
Manual # 42-02-7223 C1 6-57
6
iControl DC
Landing System Sensor Fault, LAND SYS SENSOR FAULT
Description: Generated if ULM or DLM sensor activated while car running and away from floor. May be gener-
ated if M contactor ON (car commanded to run) and safety system sees a door zone magnet for more than
16 inches of single direction travel.
Car Reaction: Emergency Stop. Motor and brake contactors immediately dropped.
Tro ubleshooting:
1. Press Fault Reset to clear.
2. If allowed, set Contactor Drop Delay Time to 0.9 seconds.
3. Check for stuck door zone sensor input (front or rear).
LCD Fault
Description: Generated if controller gets a “not ready” state from LCD. This can happen if iBox LCD is not
connected properly or, with some LCD models, if contrast is set to far to an extreme.
Car Reaction: None. The fault is simply an indication to adjust or replace the iBox LCD.
Tro ubleshooting:
1. Check the iBox Onboard Display LCD. If the LCD is blank or frozen, adjust the contrast dial to midpoint.
2. If the display looks corrupted, press the iBox Computer Reset button.
Learn Switch Timed Out Fault, LEARN SW TIMED OUT
Description: When the Learn Switch is ON for more than 15 minutes, the car will shut down.
Car Reaction: The car is not allowed to restart after the current run is completed.
Tro ubleshooting:
1. Turn OFF the iBox Learn switch.
2. If more time is needed in Learn mode, turn the Learn switch back ON to reset the fifteen minute timer.
Learn U/DNT1-5 and U/DETS Positions, LEARN U/DTS POSITIONS
Description: The positions for the normal and emergency terminal limit switches have not been learned.
Car Reaction: The elevator can only be run on Inspection or Test modes.
Troubleshooting: Perform normal and emergency terminal limit switches learn (Learn tab on iView Terminal
Switches Configuration screen)
Learn U/DNT1-5 and U/DETS Speeds, LEARN U/DTS SPEEDS
Description: The speeds for the normal and emergency terminal limit switches have not been learned.
Car Reaction: The elevator can only be run on Inspection or Test modes.
Troubleshooting: Perform normal and emergency terminal limit switches learn operation (Learn tab on the
iView Terminal Switches Configuration screen)
Learning Empty Load Values, LEARNING EMPTY LOAD
Description: Empty car load learn calibration has been initiated.
Car Reaction: Car will start load learn process.
Learning Full Load Values, LEARNING FULL LOAD
Description: Full car load learn calibration has been initiated.
Car Reaction: Car will start load learn process.
Light Load Anti-nuisance
Description: Light load anti-nuisance operation. Load in car is less than programmed Light Load Threshold.
Car Reaction: Anti-nuisance feature limits number of car calls registered. If exceeded, all car calls canceled.
Tro ubleshooting:
1. If in error, verify “Light Load Threshold” value. (Adjust on Load Weigher Configuration screen.)
2. Verify user-defined number of car calls allowed if car load less than Light Load Threshold.
3. Check if load in car is less than the Light Load Threshold value. Calibrate the load weigher if necessary.
4. For discrete input load weighers, check the Light Load input shown on the job prints.
Table 6.3 iControl Messages
iControl Messages
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