6-25
iControl Messages
iControl AC
6
Door Lock Clipped Greater than 200fpm, DOOR LK CLIPPED G200
Description: Door lock signal (DLAT, DLMS, DLAB, or GS) low for over 300mS while car moving over 200 fpm.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Troubleshooting:
1. Use Event Log to determine where fault occurred. Examine locks in that area of hoistway first.
2. Usual cause: misadjusted door, pickup rollers do not have adequate running clearance from door clutch.
3. Because fault must persist for over 300mS, slight “bumping” of door lock will not set it. If door clutch/
pickup roller clearance adequate, ensure contacts clean; door lock drops without friction or binding.
Door Lock Clipped Less than 200fpm, DOOR LK CLIPPED L200
Description: Door lock signal (DLAT, DLMS, DLAB, or GS) went low while car was moving at under 200 fpm.
Car Reaction: ASAP stop.
Troubleshooting:
1. If caused by misadjusted or damaged door, because it only occurs at under 200 fpm, usually seen when
car leaves floor where problem door is located.
DOOR LOCK OPENED
Description: Safety processor detected door lock open. A fault is generated if car is moving or attempts to
move with door lock 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 switch is operating properly.
2. Verify correct state of iBox DNTD input.
3. Verify DNTD activating/deactivating at correct location (normally 2” below bottom terminal landing).
Down Emergency Terminal Switch Position Fault, DN ETS POSITION FAULT
Description: Reported position upon encountering Terminal Switch differed from learned position by more
than set position margin. This fault may be bypassed on the Diagnostics > Fault Bypass tab.
Car Reaction: Emergency Stop: Motor and brake contactors immediately drop. Calls cancelled. After car is
stopped, it will run at Correction speed to next available floor and cycle doors. Door Open button remains
active. If fault generated when car is moving, it will latch and Fault Reset button must be pushed to clear. If
generated when car not moving, fault will self clear when condition clears.
Troubleshooting:
1. Physically check the integrity of the switch and wiring. Check the iBox input for the switch.
2. On Diagnostics > Terminal Switches Status tab, compare last pass position against learned position for
switch. Verify Position Margin within reasonable range. Relearn NTS and ETS switches. Please refer to
“Learning Normal & Emergency Terminal Limit Switches” on page 4-8.
Down Emergency Terminal Switch Shutdown, DOWN ETS SHUTDOWN
Description: Down Emergency Terminal switch opened at speed/position exceeding threshold. Fault stays
latched. Press Fault Reset to clear. If generated when car stopped, fault self clears when condition ends.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Troubleshooting:
1. Logged in conjunction with either speed or position fault at DETS. Check Event Log and follow trouble-
shooting for Down Emergency Terminal Switch Position or Safety A (or B) DETS Level 2 Speed Fault.
2. Press iBox Fault Reset to reset the fault.
Table 6.3 iControl Messages
iControl Messages
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