Bosch 4306 Service Manual Page 42

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42
• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97
Remedy
Remedy
Remedy
6. Guidelines on fault clearance
6.2. Diagnostics displays
Please note that the messages are only valid if the +24V- and +/-15V control
voltages are fault free!
The fault messages "bleeder overload" and "ground short" can be cleared by
pressing the reset key on the KDV 2.3 (key S2) or by switching off electronics
power.
LEDs
OFF Steady light
Auxiliary voltage
Power OK
Bleeder overload
no mains auxiliary voltage
at terminals X10a/ L1 ... L3
no power or
power outage
continuous bleeder
operation within
permissible range
mains auxiliary
voltage
OK
KDV2_Diagnose.fh3
green
green
red
Power
OK
shutdown due to high bleeder
power, high mains voltage, or
defective drive module
OK
Ground connection
red
no ground
short
OK
shut down due to ground
short in supply module, drive
module, cables or in motor
6.3. Fault list and remedial actions
LED "bleeder overload" is lit up red (Fault message)
Cause 1: Start-stop frequency of the drives too high.
Check load cycle.
Cause 2: Drive energy too high.
Check the drive energy.
Cause 3: The bleeder is defective or there is a fault in the KDV2.3
Replace the KDV 2.3.
LED "ground short" lit up red (Fault message)
Cause 1: Drive module is defective.
Check drive module and replace, if necessary.
Cause 2: Motor cable is damaged or there is a short in the housing.
Check motor power cable and motor.
Cause 3: Fault in the KDV2.3.
Replace the KDV 2.3.
Bleeder overload
Remedy
Remedy
Remedy
Ground connection
Figure 6.1: The diagnostics displays of the KDV 2.3
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