ZF CruiseCommand 785CE, Installation And Troubleshooting Manual

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TROUBLESHOOTING TRAIN-156 Rev.B 11/01
Page 18
K) If the A/D value is less than 75, there is an open circuit on the green
or blue wires.
1.5.3 Steady Tone
The Steady Tone is an indication to the operator that something has gone
wrong within the Control System. The Steady Tone will typically be
accompanied by an Error Message on the Processor’s Display. If the
tone is heard, the Processor’s Display must be referred to in order to fur-
ther diagnosis the problem.
1.5.4 One Long - One Short
This tone indicates that there is some type of malfunction with one or
more of the Clutch or Neutral Solenoid Circuits. The exact nature of the
malfunction can be further isolated as indicated by the Error Message on
the Display. There are six different Error Messages, of which one or
more will be displayed in conjunction with this tone. Depending on
which Solenoid and whether an Open or a short is detected. Error Mes-
sage 1, 2, 3, 4, 5, or 6 will be shown. The System’s program/memory
must be told of the existence of these solenoids in order to activate this
feature.
1.5.5 Three Second Steady Tone
This tone is generated when a fault is detected with the Troll ON/OFF
Solenoid or Troll Proportional Solenoid. The tone will also be accompa-
nied with one or more of Error Messages 7, 8, 9, and 10. The System’s
program/memory must be told of the existence of these solenoids in
order to activate this feature.
1.6 S
TATION
T
RANSFER
In order to transfer command from one remote station to another the
following must occur:
• There must be a valid “Command Signal” from the Control Head to
the Processor.
• The “Command Signal” must indicate that the Control Head’s
lever(s) is at the Neutral/Idle position.