Technical data

43
• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97
Auxiliary voltage
Remedy
6. Guidelines on fault clearance
LED "auxiliary voltage" not lit up (Fault message)
Cause 1: Fuse F3 or F4 is defective
Check fuses F3 and F4 and replace, if necessary.
Cause 2: Voltage input interrupted.
Check the voltage at X10a (230 V AC).
LED "power O.K." does not light up (Fault message)
Cause 1: Voltage is too low, or a phase on X9 is missing
Check mains input at X9 (3 x 220 V AC)
Cause 2: DC bus voltage less than 200 V DC
1. Remove the busbars to the drive and check the DC bus voltage at X9
(L+, L-). Note safety guidelines.
2. Check the DC bus for short circuit.
(Fault message)
Cause 1: There is a fault in one of the drives.
Check drie diagnostics displays.
Cause 2: There is a fault in the signal voltage of the wire-ribbon connection.
1. Check whether the bus cable signal voltage (X1) is properly mounted.
2. Check termination connection of the wire-ribbon connection (X1).
(Fault message)
Cause 1: There is no control voltage at X10a or it is faulty
Check the mains fuses in the control cabinet
Cause 2: Maximum signal voltage load exceeded
1. Disconnect signal voltage bus cable (X1) to the drive modules and
take new voltage readings.
2. Disconnect signal voltage taps routed in the control cabinet outside
the KDV2.3 or the drive module, and check for short-circuiting.
Cause 3: The fuses F2, F3 or F4 in the KDV 2.3 are defective
Check and replace fuses.
.
Power O.K.
Remedy
Remedy
Remedy
Bb1contact does not
close
Remedy
Remedy
+24 V and/or ±15V
No control voltage
Remedy
Remedy
Designation
+24V (output)
auxiliary voltage fuse L1
auxiliary voltage fuse L3
heatsink blower
Symbol
F2
F3
F4
F6
Fine-wire fuse 5 x 20mm
2A/250E medium-blow
10A/250E slow-blow
10A/250E slow-blow
0.63A/250E medium blow
Except for F6, all fuses are mounted to the front of the unit (F6 is on the blower).
Figure 6.2: Fuses
6.4. Fuses