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40 CAPACITOR CHARGE
Condition for error detection
At the ignition, the logic unit tries to charge the condensers by an internal power resistance and an inter-
nal diode, and checks that the condensers are charged in the arranged time. If this does not occur, an
alarm is send; the main contactor remains open.
• Check the negative connection between the logic unit and the battery
• Check the voltage at the key input (pins 1 and 4, connector JP, cable R03 on the lifting logic unit: there
must be battery voltage
• Disconnect the connector J13 and J3. If the alarm disappears check the status of the temperature
sensor
• If the alarm is still present, replace the logic unit.
If the alarm appears along with alarm 10 of the traction logic unit, check as follows to find the faulty con-
trol:
• Disconnect the cable (T+) from the traction logic unit and the cable (+) from the lifting logic unit
• Using a multimeter, check the voltage between the positive (+BF) and the negative (-B) of both logic
units
• Replace the logic unit with voltage between -B and +BF close to zero
Reference wiring diagram page 2/7 (chapter 17, section WIRING DIAGRAMS)
41 HIGH TEMPERAURE
Condition for error detection
Logic unit temperature is higher than 85°C. The maximum current is reduced proportionally to the tempe-
rature increase.
At 105°C the current is reduced to 0 and the module stops.
Check:
• the state of the dissipator paste between the control and the counterweight. This must be present on
all the control surface
• the CONTR TEMP parameter (menu TESTER - MAT HANDLING on the instrument panel). If below
85°C, replace the liftinglogic unit.
42 MOTOR TEMPERATURE
Condition for error detection
This alarm appears when the motor temperature sensor reaches 140°C.
If the alarm appears when the motor is cold, check:
- The state of the wiring harness and the temperature sensor connector
- Connect a 600 ohm resistance to the sensor connector:
• If the alarm disappears, replace the temperature sensor
• If the alarm persists replace the logic unit
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