iControl Messages
Manual # 42-02-7223 C1 6-31
6
iControl DC
Dual Channel QUAD Fault, DUAL CHANNEL QUAD FLT
Description: The Safety system did not detect movement of the car even though the iBox processor reported
car movement, or the Safety system reported car movement while the processor did not.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Tro ubleshooting:
1. Press the Fault Reset button.
2. Check the wiring for the DP1 and DP2 encoder signals from the landing system to the iBox.
3. Check the motor encoder or tachometer (whichever is present).
4. Compare Pattern Command and Speed Feedback on the iView oscilloscope screen to make certain they
track one another.
5. Check reported speed accuracy using a hand-held tachometer.
Dynamic Braking IGBT Failure
Description: The controller has detected a dangerous over temperature in the dynamic braking resistor cabi-
net. This fault is only cleared when input is deactivated. Car is put into Machine Room Inspection and must
be cleared in iView.
Car Reaction: Car will cancel all calls and shut down at next available floor. Doors will cycle.
Troubleshooting: Check drive IGBT carefully. If this fault latched, the drive sent significantly high current to
the Dynamic Braking Resistors. MCE is not responsible for property damage caused if this fault is cleared and
car put back into service without replacing the drive.
Earthquake Board Power Supply OFF
Description: The controller has detected a failure of the earthquake board power supply.
Car Reaction: The car behaves as if the counterweight derailment detector has been triggered (car generally
makes an emergency stop, and is removed from service at the next available landing).
Tro ubleshooting:
1. Check board connections.
2. Replace the EQ board.
Earthquake Board Power Supply ON
Description: The earthquake board (ICE-EQ) power supply is operational.
Car Reaction: Car is no longer prevented from operating due to a loss of the earthquake board power supply.
Earthquake Emergency Stop
Description: Earthquake operation has been activated by the seismic or counterweight displacement
switches and the car has performed an emergency stop as specified by the earthquake user settings.
Car Reaction: The car will perform an emergency stop. After a pause, the car will react as directed by user
settings on the Car Operation screen Earthquake tab.
Tro ubleshooting:
1. Check the wiring for the seismic and counterweight displacement inputs.
2. Check the earthquake user settings on the Car Operation screen Earthquake tab.
Earthquake Operation Activated
Description: The car is on earthquake operation.
Car Reaction: Car behavior is according to the user settings on the Car Operation screen Earthquake tab.
This operation is latched until the EQ reset button is pressed on the ICE-EQ board.
Troubleshooting: NA. See also “Earthquake Operation (Seismic Switch)” and “Earthquake Operation (Coun-
terweight).”
Earthquake Operation Deactivated
Table 6.3 iControl Messages
iControl Messages
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