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150
EN 3340.758.003a - 2014-11
TROUBLESHOOTING
MM9000 Rev C.8 01/13
Page 150
MM9000 ClearCommand User Manual
Troubleshooting
appropriate A/D (Analog/Digital) value for the present position of the Control Head’s lever
will be shown, as in the examples below:
E
An A/D value of 910 or greater will generate an Error Code. The code will be
13
to
22
(Control Head # Faulted High), depending on which Station has the high Command Signal.
•
If the A/D value is greater than 910, but less than 990, one of the following
may be the cause:
1.
The Control Head’s potentiometer is out of calibration.
2.
The potentiometer is defective.
In either case, it is recommended that the Control Head is
replaced.
•
If the A/D value is 995 or higher, most likely the potentiometer’s ground has
been lost.
•
Right hand Control Heads have a jumper between pins 3 and 5 if a Harness is
used. This jumper provides the potentiometers ground.
•
Left hand Control heads have a jumper between pins 3 and 7 is a Harness is
used. This jumper provides the potentiometers ground.
•
The potentiometer ground connection for Control Heads which are hard-wired
to the Processor is through the yellow wire (pin 5 on right hand and pin 7 on
left hand).
F
If the A/D value is 100 or less, one of Error Codes
23
-
32
(Control Head # Faulted Low) will
be shown.
•
If the A/D value is less than 100, but greater than 75, the following may be the
cause:
1.
The Control Head’s potentiometer is out of calibration.
2.
The potentiometer is defective.
3.
A high resistance connection exists on pin 6 (green wire)
between the Control Head and Processor.
•
If the A/D value is less than 75:
1.
There is an open wire between pin 6 (green wire) of the Control
Head and the Processor.
2.
There is an open wire between pin 7 (blue wire) of a right hand
Control Head and the Processor.
3.
There is an open wire between pin 5 (blue wire) of a left hand
Control Head and pin 7 (blue wire) of the Processor.
Figure 10-15: Display Examples of Remote Stations A/D Value
S
TATION
1
(N
EUTRAL
C
OMMANDED
)
S
TATION
4
(N
O
C
ONTROL
H
EAD
C
ONNECTED
)
S
TATION
2
(F
ULL
A
HEAD
C
OMMANDED
)
S
TATION
5
(N
EUTRAL
C
OMMANDED
)
S
TATION
3
(F
ULL
A
STERN
C
OMMANDED
)
Summary of Contents for MM9000
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Page 130: ...130 EN 3340 758 003a 2014 11 SEA TRIAL REPORT ...
Page 198: ...198 EN 3340 758 003a 2014 11 APPENDIX A SYSTEM COMPONENTS AND SPECIFICATIONS ...
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Page 258: ...258 EN 3340 758 003a 2014 11 APPENDIX B QFA DVTP ...
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Page 276: ...276 EN 3340 758 003a 2014 11 APPENDIX C SALES AND SERVICE INFORMATION ...
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Page 310: ...310 EN 3340 758 003a 2014 11 REVISION LIST ...
Page 324: ...324 EN 3340 758 003a 2014 11 APPENDIX D SYSTEM DRAWINGS ...
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