Malfunctions and warnings
7.2
Warning signals
The warning relay K761 at terminals X36-1 and X36-2 interrupts.
Signal
EXC. TEMP PREW. (red) lit
none
7-2
ENGLISH
Description
Excess temperature prewarning of
the power section
Switching threshold = 6°C below
the fault signal threshold (90°C
±5°C)
If the DIP-FIX switch S1 is closed,
a warning is issued in the event of
pulse blockage, i.e. before
precharging and in the event of all
faults.
Remedy
Reduce current tapping; check air
throughput; check ingoing air
temperature
Open the DIP-FIX switch S1.
Siemens AG
6SE7087-6AE85-0AA0
Common Rectifier
Operating instructions
02.04