Manitou AETJ 43 - Page 143

ELECTRICITY
140
80
547379EN
80 (08/03/2017)
Led Message Message Description and
Investigations
Variable Speed
Controller
Hour meter Calibrator Comments
3 Flashs
MOSFET
F05009 PUp Trac MOS Failure of power test when
switching on.
- Check the following points:
• With the line switch (KM1) CLOSED, the voltage at terminal “A” of
the variable speed controller must be equal to the battery voltage
(if no movement activated).
• With the line switch (KM1) OPEN, the voltage at terminal “A” of the
variable speed controller is around 7-8 V.
1 - If one of the two points above is correct, the problem originates
outside the variable speed controller. In this case, perform the following
checks (list not exhaustive):
• No negative voltage on the chassis.
• The electric pump must be isolated from the chassis.
• The electrical power harnesses must not be in short circuit.
2 - If any of the points described above is not proven, the
problem originates inside the variable speed controller. In this
case, perform the following checks.
2 - 1 - With the line switch (KM1) CLOSED, the voltage at terminal “A”
of the variable speed controller is <3 V:
• Disconnect the travel motor cables (terminal A, S F1 & F2 on the
variable speed controller).
• Switch the variable speed controller o and on.
• Check if the problem persists.
• Disconnect connector ‘B’ of the variable speed controller logic
module, connect a wire from plug “B1” of the variable speed
controller logic module to a positive battery.
• Switch the variable speed controller o and on.
• Check the status of the LED: if the problem persists, change the
variable speed controller or otherwise check the insulation of the
variable speed controller and the switch (KM3).
2 - 2 - With the line switch (KM1) OPEN, the voltage at terminal “A” of
the variable speed controller is <3 V:
• Internal fault in the variable speed controller, replace it.
F05006 Mosfet s/c Failure of power test
when switching on
- Turn o the machine: if the problem persists, repeat the procedure
described above
4 Flashs
SWITCH OPEN
OR CLOSED
F05008 PUp Trac Weld Line switch (KM1)
“CLOSED” (stuck or welded) when
switched on: the variable speed
controller measures a voltage on
terminal “A” 2 volts less than the
battery’s rated voltage.
- Check if the line switch (KM1) is OPEN when the power supply is cut:
• KM1 OPEN: variable speed controller OK.
• KM1 CLOSED: switch stuck, check the switch, check its power
supply and replace if necessary.
- Check that there is a delay of 2 seconds between switching on and
the closure of the line switch (KM1).
• DELAY = 2s: variable speed controller OK.
• Delay ≠ 2s: variable speed controller defective, driver of LINE
switch out of service.
- Check the power cables.
F05020 Line Cont O/C Line switch (KM1)
“OPEN”: the variable speed
controller measures a voltage on
terminal “A” 3 volts less than the
battery’s rated voltage.
- Check:
• The mechanical condition of the switch.
• The coil of the switch.
• The control of the switch coil.
• The power and auxiliary fuses.
• The wiring of the motors.
- Check output B8 of the variable speed controller logic module, the
signal is negative, if this is not the case, the line switch driver is out of
service: change the variable speed controller.
F05021 Coil s/c (std) Digital output in short circuit on
the E/S module: BASE
- Check:
• The wiring.
• The elements controlled by the module.