Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 61
CODE
FAULT DESCRIPTION
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)
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.
I/O BOARD FAULT TABLE
Right
Number
x0
x1
x2
x3
x4
x5
x6
x7
Board1
OK
Fault
OK
Fault
OK
Fault
OK
Fault
Board2
OK
OK
Fault
Fault
OK
OK
Fault
Fault
Board3
OK
OK
OK
OK
Fault
Fault
Fault
Fault
Board4
OK
OK
OK
OK
OK
OK
OK
OK
Right
Number
x8
x9
xA
xB
xC
xD
xE
xF
Board1
OK
Fault
OK
Fault
OK
Fault
OK
Fault
Board2
OK
OK
Fault
Fault
OK
OK
Fault
Fault
Board3
OK
OK
OK
OK
Fault
Fault
Fault
Fault
Board4
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Left
Number
0x
1x
2x
3x
4x
5x
6x
7x
Board5
OK
Fault
OK
Fault
OK
Fault
OK
Fault
Board6
OK
OK
Fault
Fault
OK
OK
Fault
Fault
Board7
OK
OK
OK
OK
Fault
Fault
Fault
Fault
Left
Number
8x
9x
Ax
Bx
Cx
Dx
Ex
Fx
Board5
OK
Fault
OK
Fault
OK
Fault
OK
Fault
Board6
OK
OK
Fault
Fault
OK
OK
Fault
Fault
Board7
OK
OK
OK
OK
Fault
Fault
Fault
Fault
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.