chapter 5000
page 59
1,2 - 2,0 t A.C.
SERVICE MANUAL
Electric
036-0410-07
CODE ALARM DESCRIPTION
84 PEDAL WIRE KO Failure on the acceleration potentiometer signal at rest. This alarm appears
when there is an interruption on the potentiometer positive (PPOT) or the
negative (NPOT). Check:
- Traction potentiometer (could be damaged)
- Traction potentiometer wiring.
85 WRONG BATTERY When the key is turned ON, the controller checks the battery voltage and
compares it with the “SET BATTERY” parameter setting. If the actual value
is 20% higher or lower than the nominal value, there is a fault. Replace the
battery with a correct one.
89 Not used.
7C Not used.
7A MASTER KO Failure on the Master module. Replace the Dual AC2 traction unit.
8E Not used.
8A Not used.
8C GAIN ACQUISITION This warning communicates that the logic is in phase of input acquisition.
In this phase the logic doesn't start.
AC2 LIFTING UNIT
31 WATCH - DOG It is a self-diagnostic test of logic lifting µcontroller . This alarm could also be
caused by the canbus malfunctioning or data transmission
interferences.Therefore, before replacing the AC2 lifting unit check the
correct canbus functioning and the general turck insulation.
32 EEPROM KO Fault in the area of memory in which the adjustment parameters are stored;
this alarm inhibits the truck operation, but the controller will use default
parameters. If the defect persists when the key is switched OFF and ON
again, replace the logic. If the alarm disappears, remember that the
parameters previously stored have been deleted and replaced by the default
values (see adjustin tables).
33 LOGIC FAILURE #3 Logic defect. Replace the lifting unit.
34 LOGIC FAILURE #2 Fault in the hardware section of the logic boardwhich manages the phase
voltage feedback. Check the 3 power cables connected to the liftilg motor.
If the fault is not caused by external reasons, replace the traction unit.
35 LOGIC FAILURE #1 This alarm signals that the interruption of protection against undervoltage /
overvoltage has been triggered. The possible reasons are:
a. Real battery undervoltage / overvoltage, or voltage loss after tht ignition
key or after the battery connector
b. Fault in the hardware section of the logic board which controls the
overvoltage protection. Logic defect. Replace the lifting unit.
c. The alarm appears also when one or more phases of the lifting motor
doesn't present a correct insulation. Check the motor insulation(with
deconnected battery): it must be higher than 1 Mohm. Otherwise check
the insulation of the power cables to the motor.
36 VMN LOW Failure in the VMN test. This test starts when the ignition key is turned ON.
The alarm appears if there is a creepage on one or more phases; check
the connections of the 3 power cables from the Lifting unit to the lifting
motor and the cables condition also. In order to point out if the fault is
produced by an internal or external cause connect the lifting motor.to one of
the traction logic units: Slave or Master. If the problem jumps on the traction
unit connected it means that the lifting motor is demaged, otherwise replace
the lifting unit.
To Next Page
Loading...
Need help?
General
