iControl Messages
Manual # 42-02-7223 C1 6-63
6
iControl DC
Position Speed Threshold Fault, POSTN SPD THRSHLD FLT
Description: The quadrature synthesized speed exceeds 115% of contract speed. This fault may be bypassed
on the Diagnostics > Fault Bypass tab.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Tro ubleshooting:
1. On the iView oscilloscope, compare Pattern Command and Speed Feedback to see that they match.
2. Use a hand-held tachometer to verify car speed.
3. Run the car on inspection and check the speed displayed on the iBox display.
4. For SCR drives, verify that programmed running motor field is close to actual motor field value running at
contract speed. If value is higher, system will have to weaken motor field as elevator reaches contract
speed. If motor field is very inductive, this may cause overshoot. If value is too low, excessive current
may flow through armature. Note that load will affect this value. Running in up direction with full load in
car will yield worst-case scenario. For an empty elevator, running in down direction produces worst-case
scenario (value will be higher than for fully loaded car.)
5. For highly inductive motor fields, begin motor field weakening earlier and end motor field weakening ear-
lier. If begin weakening percentage is too low, poor control will result when elevator is approaching des-
tination floor (spotting). If so, reduce end weaken percentage without modifying (by much) the begin
weakening percentage. Generally, begin is recommended around 50% while end is recommended around
90% for normal motor fields.
6. Reduce high roll jerk.
Position Synchronization Fault
Description: The system was not able to read the position correction value stored in battery backed RAM
when the controller powered up. This fault usually results in a floor sensor fault or a position location fault.
Car Reaction: None.
Tro ubleshooting:
1. Verify iBox battery connection and charge (lower left side of ICE-IMP board - iBox cover removed).
Battery type: 1/2 AA, 3.6V Lithium. Manufacturer: SAFT, part # LS14250. MCE part # 30-05-0001.
Position Synchronization Required at Floor, POSITION SYNC-FLOOR
Description: The elevator needs to verify position by crossing a door zone sensor.
Car Reaction: Cancel all existing calls, synchronize to floor.
Position Synchronization Required at Terminal, POSITION SYNC-TERMINAL
Description: Elevator is lost and needs to locate a terminal door zone sensor to establish position.
Car Reaction: Cancel all existing calls, synchronize to terminal.
Position Synchronized at Floor
Description: Elevator completed synchronizing position using a door zone sensor. See Position Synchroniza-
tion Required at Floor.
Car Reaction: Return to normal service.
Position Synchronized at Terminal
Description: The elevator has completed synchronizing its position using a terminal door zone sensor. See
Position Synchronization Required at Terminal.
Car Reaction: Return to normal operation.
Power Transfer Input Activated, Power Transfer, POWER TRANSFER
Description: Power transfer input activated. Power transferring from emergency to commercial service.
Car Reaction: Cancel existing calls. Stop at next floor and open doors.
Troubleshooting: Check the Power Transfer input.
Power Transfer Input Deactivated
Table 6.3 iControl Messages
iControl Messages
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