Motion Control Engineering Motion 4000, Manual

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Troubleshooting
5-8 Manual # 42-02-2P24
DOOR CLOSE PROTECTION TIMER ELAPSED
Description: Failure to lock the doors detected. This condition exists when the doors have closed (DCLC =
1 or DCL = 0/DPM=1) and demand exists for the car to move (DCP=1), but the doors have not locked (DLK
= 0) within 60 seconds.
Troubleshooting: If the Retiring Cam option is set, verify the Retiring Cam relay is activated (DCP=1,
DCL=0/DPM=1 or DCLC=1) and the doors lock (DLK=1). If no Retiring Cam is used, verify door lock con-
tacts are closed to provide power to the door lock input (DLK=1). When a predetermined number of
sequential failures is detected (default is four), the car will shut down. The failure will be reset once the
doors are locked (DLK=1), the car is placed on Inspection, or the Computer Reset Button is pressed.
DOOR ZONE SENSOR FAILURE - OFF POSITION
Description: Indicates that the car completed a run but did not detect a door zone.
Troubleshooting: Reset by pressing the Fault Reset button or by toggling MACHINE ROOM INSPECTION
INSP/NORM switch. Run the car to the same floor and verify that DZ=1 or DZR=1.
1. Check voltage at door zone input to CTL board and at DZFO output from MPI board as shown in your
job prints. Make sure wiring between boards is correct.
DOOR ZONE SENSOR FAILURE - ON POSITION
Description: One of the DZ inputs (front or rear) did not transition to the low state during the last run.
Probable cause may be:
1. A faulty door zone sensor or associated circuitry (within the landing system assembly).
2. Faulty wiring from the landing system to the controller.
3. Faulty computer input circuit (HC-CTL Control board).
Troubleshooting: Check door zone sensor operation and wiring. (Place car on inspection, move car away
from the floor, noting the transitions in the door zone signal(s) coming from the landing system.)
Verify that the computer diagnostic display of DZ (or DZ rear) matches the state of the sensor signals at
the HC-CTL Control board (or HC-RDR Rear Door board).
If these zones are virtual, check programming (F7, Parameters Adjust).
1. Check voltage at door zone input to CTL board and at DZFO output from MPI board as shown in your
job prints. Make sure wiring between boards is correct.
DPM REDUNDANCY FAULT
Description:
Front door input, relay, or associated circuitry failure detected. Valid when SAF is on. DLK
and DPM must always be in the same state. If your door operator connects to a UIO board on the car top
(rather than up the traveler to the controller), check that the “spare” inputs used for door operation are
correctly programmed and that Serial Cartop Door Control (
4-16 ) is set properly. Also verify communica-
tion to UIO (if you have serial cartop door control) by placing F1 and F8 switches UP to view communication
with boards.
Troubleshooting :
1. Check that DPM makes (120VAC) 1 to 2 inches prior to door lock.
2. If so, check associated circuitry.
DPMR REDUNDANCY FAULT
Description:
Rear door input, relay, or associated circuitry failure detected. Valid when SAF is on. DLK and
DPMR must always be in the same state. If your door operator connects to a UIO board on the car top
(rather than up the traveler to the controller), check that the “spare” inputs used for door operation are
correctly programmed and that Serial Cartop Door Control (
4-16 ) is set properly. Also verify communica-
tion to UIO (if you have serial cartop door control) by placing F1 and F8 switches UP to view communication
with boards.
Troubleshooting :
1. Check that DPMR makes (120VAC) 1 to 2 inches prior to door lock.
2. If so, check associated circuitry.
Table 5.1 Status and Error Messages
Scrolling Message - Special Event Message