Siemens 6SN1123-1AA00-0DA2 Configuration Manual page 389

11 Spare Parts and Service
11.4 Inspection of the DC link capacitors of the PM modules
Forming circuit
!
11-388
The forming circuit is configured using incandescent lamps, or alternatively us-
ing PTC resistors.
Components required (recommendation):
S
1 fuse switch 3x 400 V / 10 A
S
2
Cable, 1,5 mm
S
3 PTC resistors 350 R / 35 W
(Recommended: PTC–35W PTC800620–350 Ohm, company, Michael Koch
GmbH; www.koch–mk.de
S
3 incandescent lamps 230 V / 100 W
S
Various small parts, such as lamp sockets, etc.
Danger
As a result of the DC link capacitors, after the device has been disconnected
from the supply, voltages are present in the device for up to 5 min. It is only
permissible to work on the device or the DC link terminals at the earliest after
this wait time has expired!
Power module
Power module to be formed
Fig. 11-1 Forming circuit comprising power modules with incandescent lamps
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Fuse switch
Incande-
scent lamps
Motor connection
U2
V2
W2
PE
© Siemens AG 2012 All Rights Reserved
02.12
05.01
3 AC 400 V
L1 L2 L3 PE