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Start-up
When using parallel converters, it is imperative to connect the positive and negative
poles (C/L+ and D/L-) of the DC link correctly, since the freewheeling diodes in the
circuit are not protected against overcurrent by the fuses of the incoming unit.
The sequence of the following LEDs corresponds to their position on the module A23.
LED
Name
Colour
H1
SUPPL.
green
OK.
H6
EARTH
red
FLT.
H5
EXC.
red
TEMP
PREW.
H4
PHASE
red
FAIL.
H3
EXC.
red
VOLT.
H2
EXC.
red
TEMP.
Table 4.1
LED indications
See Chapter 7 for an explanation of the LEDs.
4-2
ENGLISH
Meaning
Electronic power supply ok
Earth fault on the converter
Excess temperature prewarning of the power
section
Mains phase failure
Excess mains voltage
Excess temperature of the power section
WARNING
Siemens AG
Common Rectifier
02.04
6SE7087-6AE85-0AA0
Operating instructions
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