6-59
iControl Messages
iControl AC
6
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.
Troubleshooting:
1. On 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 car on inspection and check speed displayed on iBox display.
4. For SCR drives, verify programmed running motor field is close to actual motor field value 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 an overshoot. If value is too low, excessive current may flow
through armature. Note that load will affect this value. Running up with a full load in car will yield worst-
case scenario. For an empty elevator, running down produces worst-case scenario (value will be higher
than for fully loaded car.)
5. For highly inductive motor fields, begin motor field weakening earlier; end motor field weakening earlier.
If begin weakening percentage is too low, poor control will result when elevator is approaching destina-
tion floor (spotting). In this case, reduce end weaken percentage without modifying (by much) begin
weakening percentage. Generally, begin is around 50%; end is around 90% for normal motor fields.
6. Reduce high roll jerk.
Position Synchronization Fault
Description: System was not able to read position correction value stored in battery backed RAM when con-
troller powered up. Usually results in a floor sensor fault or a position location fault.
Car Reaction: None.
Troubleshooting:
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 has lost position and needs to locate a terminal door zone sensor to establish it.
Car Reaction: Cancel all existing calls, synchronize to terminal.
Position Synchronized at Floor
Description: Synchronization completed using door zone sensor. See Position Synch Required at Floor.
Car Reaction: Return to normal service.
Position Synchronized at Terminal
Description: Elevator has completed synchronizing its position using a terminal door zone sensor. See Posi-
tion Synchronization Required at Terminal.
Car Reaction: Return to normal operation.
Power Transfer Input Activated, Power Transfer, POWER TRANSFER
Description: Power transfer input activated. Transfer to/from emergency power.
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
To Next Page
Loading...