Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 56
CODE
FAULT DESCRIPTION
LOW OIL
Running Shutdown Timer. The car ran for the time specified by the "Shutdown
Time" setting without passing a floor. Note that the time is reset every time the
car passes a floor. The car will stop and return to the bottom landing (or the Main
Landing if the appropriate feature is set). It is reset by cycling power or cycling
the Inspection Switch (see the Note below). The probable causes are: (1) Low oil,
(2) Up valve(s) did not operate properly, (3) Pump did not operate properly.
Other possible causes include any situation that prevents the car from running up
(such as a bad output for the Up Run; loose wire in the valve coil circuit; bad
contact in the Up Normal Switch, etc.) or prevents the car from changing floors
(such as a failure in the Selector Slowdown Switches).
Check that the setting of the shutdown timer is long enough for the car to run
between floors. The normal shutdown timer setting is 25 seconds.
NOTE
: If 2010 ANSI Code is enabled, then shutdown faults must be reset by
momentarily turning on the CPU DIP Switch #4, or by momentarily jumping the
Fault Reset Input.
TDOPEN
Door Open Fault. The Door Open Limit Switch failed to open after the doors had
been opening for the time specified by the "Door Fault" setting. The probable
causes are: (1) Door Open Limit Switch failure, (2) door operator failure, (3) door
control circuitry failure, This fault can be disabled on Manual Door systems.
TDCLOSE
Door Close Fault. The doors failed to close properly when they were parking, or
when the car was ready to run for the next call. This fault will not be caused by
keeping the doors open through the normal means (Door Open Button, Safety
Edge, Infra-red Unit, etc.), but only if the doors should be closing but were not
able to close. The probable causes are: (1) Door Close Limit Switch failure, (2)
Door Contacts failure, (3) door operator failure, (4) door control circuit failure.
TDOPN-R
Rear Door Open Fault. This is the same as fault TDOPEN, except it is for the rear
door. This fault is only used on elevators with selective open doors (with a front
and rear door at the same landing). This fault can be disabled on Manual Door
systems.
TDCLO-R
Rear Door Close Fault. This is the same as fault TDCLOSE, except it is for the rear
door. This fault is only used on elevators with selective open doors (with a front
and rear door at the same landing).
CARSTUK
Car Stuck Fault. The car was held at a floor for the time set by the "Car Stuck
Time" setting, without running. This may be caused by a stuck button, or just by
a passenger holding the car.
BAD PWR
Bad Power. The Reverse Phase input or the BORIS input (Battery Backup) or the
Emergency Power input was off.
DRCONTS
Door Contact Fault. The Door Contact Input turned off while the car was running.
This fault could be caused by the car tipping a door contact, or another of the
devices in the safety string. It could also be caused by a failure of the "DC" Door
Contact relay.
OUT-DZ
Door Zone Fault. The car stopped between floors. This is normal when the car is
being taken off Inspection Service. This fault will usually be seen with fault 08,
since the car will usually stop outside the door zone if the safety string is broken.
