MCi iControl User Manual page 300

Troubleshooting
Table 6.3 iControl Messages
Demand Down Peak Mode, DEMAND DOWN PEAK MODE
Description: The car is running in Demand Down Peak mode, favoring traffic in the down direction as config-
ured on the group control screens.
Demand Up Peak Mode, DEMAND UP PEAK MODE
Description: The car is running in Demand Up Peak mode, favoring traffic in the up direction as configured on
the group control screens.
Dispatcher = Car 'n', DISPATCHER = CAR'n' (n = 1 to 20)
Description: Communication with the main iCue dispatcher has been lost or not established. This car is com-
municating with Car 'n' (n = 1 to 20) which is acting as the backup dispatcher.
Troubleshooting: Check the group to car communication related connections and parameters.
Door Lock Clipped Greater than 200fpm, DOOR LK CLIPPED G200
Description: The door lock signal (DLAT, DLMS, DLAB, or GS) went low for over 300mS while the car was
moving at over 200 fpm.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Troubleshooting:
1. Use the Event Log to determine where the fault occurred. Examine the locks in that area of the hoistway
first.
2. Usually caused by a misadjusted door, where the pickup rollers do not have adequate running clearance
from the door clutch.
3. Because this fault must persist for over 300mS, a slight "bumping" of the door lock will not set it off. If
the door clutch/pickup roller clearance is adequate, make sure the door contacts are clean and the door
lock mechanism drops cleanly without friction or binding.
Door Lock Clipped Less than 200fpm, DOOR LK CLIPPED L200
Description: The door lock signal (DLAT, DLMS, DLAB, or GS) went low while the car was moving at under
200 fpm.
Car Reaction: ASAP stop.
Troubleshooting:
1. Usually caused by a misadjusted or damaged door. Because it only occurs at speeds under 200 fpm, it is
usually seen when the car leaves the floor where the problem door is located.
DOOR LOCK OPENED
Description: This is a status message indicating that the safety processor has detected that the door lock is
open. A fault is generated if the car is moving or attempts to move while the door lock is open.
Down Direction Limit Open, DOWN DIR LIMIT OPEN
Description: Down normal terminal direction limit switch is open.
Car Reaction: Initiate an immediate stop if moving. Further down direction movement is prevented.
Troubleshooting:
1. Verify that the switch is operating properly.
2. Verify correct state of the iBox DNTD input.
3. Verify that DNTD switch is activating/deactivating at the appropriate location (normally 2" below the bot-
tom terminal landing - see prints).
6-24 Manual # 42-02-2222
iControl Messages