Virginia Controls, LLC MH-3000 User Manual, 1_03C10-VC Page 61
Comm A
Comm B
Comm C
Comm D
Communication with the car A or B or C or D failed. This fault is only seen on a
Group Dispatcher. This fault will occur if the power to the car is turned off, or the
car fails to communicate properly for 5 seconds. Check the communication cable,
and the termination jumpers, which are located by the communication cable
terminal strip. Refer also to the Zoned Group Operation section and
Communication Troubleshooting section for further help.
Other Fault Codes may occasionally be provided on specific jobs. If this is the
case, then refer to the additional documentation for that job to see what the codes
and descriptions are for those faults.
6.1.3.5 Fault Log Status Signals
The bottom row of the “Fault Log” screen shows the car position and the status of key
signals that help determine what the car was doing when the fault occurred. The car
position is a number between 1 and 9, and every other value is either 1 (the signal was on)
or 0 (the signal was off).
On Group Dispatchers the bottom line of the Fault Log shows the date of the fault only.
To match the description with the location of each signal, the values in the screen below
have been replaced with letters, but in the actual log they would be 1’s and 0’s, as shown in
the sample screen at the top of this section. Match the letter shown in the sample screen
below with the table below, to determine the description of that signal.
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