Bosch BAT 645 - Page 25

1 689 975 285 2017-06-30| Robert Bosch GmbH
Faults & Troubleshooting | BAT 645 | 25 en
"Fault no.: 320"
Possible cause:
Voltage at output is unstable.
Remedy:
1. Check battery voltage. (12V or 24V).
2. Replace battery if battery voltage differs.
DANGER - Risk of electric shock from live
parts. Observe the electrical engineering safety
regulations.
3. Check the voltage at the measuring points U
ist
and GNDA on the power module using the correct
battery voltage from a battery with 12V (see sec.
5.6).
 The voltage must be 0.85V +/- 0.007V.
4. Check the voltage at the measuring points U
ist
and GNDA on the power module using the correct
battery voltage from a battery with 24V (see sec.
5.6).
 The voltage must be 1.7V +/- 0.007V.
5. Replace power module if U
ist
is unstable.
"Fault no.: 330"
Possible cause:
Current above allowed maximum value.
Solution:
¶ Replace power module.
"Fault no.: 340"
Possible cause:
No current flowing despite request from controller.
Remedy:
¶ Replace power module.
"Fault no.: 350"
Possible cause:
The charging current requested by the controller is not
supplied.
Remedy:
¶ Replace power module.
"Fault no.: 360"
Possible cause:
Temperature in BAT 645 is above the maximum value.
Remedy:
1. Switch off BAT 645 and allow to cool down.
2. Check ambient temperature.
! The ambient temperature must not exceed 45°C.
3. Clean fan opening on the side wall of the BAT 645.
4. Clean cooling fins on the power module.
5. Replace power module.
"Fault no.: 370"
Possible cause:
Temperature in BAT 645 is below the minimum value.
Remedy:
1. Check ambient temperature.
! The ambient temperature must not be below -5°C.
2. Replace power module if the ambient temperature is
in the normal range.
"Fault no.: 390"
Possible cause:
General hardware fault.
Remedy:
1. Disconnect BAT 645 from power and restart
charging attempt with correct parameters.
2. Replace power module.