11
05.01
11.4 Inspection of the DC link capacitors of the PM modules
11-389
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Power module to be formed
Power module
3 AC 400 V
L1
L2
L3
PE
Fuse switch
PTC resistor
Motor connection
U2
V2
W2
PE
Fig. 11-2
Forming circuit comprising power modules with PTC resistors
S
Before forming the DC link capacitors, it is imperative that the DC link bridge
is removed.
S
Ensure that the power module does not receive a switch–on command.
S
Connect the forming circuit.
S
Over the course of the forming time, the incandescent lamps must become
darker/go out completely. If the incandescent lamps are continually lit, then
there is a fault in the power module the wiring.
S
When forming using PTC resistors, the modules must remain in the circuit
for approximately 1 hour. If there is a fault in the power module, then the
resistors will become very hot (surface temperature > 80
°
C).
J
Procedure
11 Spare Parts and Service
02.12