Siemens SIMODRIVE 611 Planning Manual page 286

9 Important Circuit Information
9.10 Star–delta operation
Connection
diagram for Y/∆
changeover 611
analog system
SIMODRIVE 611 analog system MSD module
U2
U1
V1 W1
9
Fig. 9-27
1) One input terminal, which can be selected from terminals E1 to E9.
2) Two relay outputs which can be selected from terminals A11 to A61.
3) Safe standstill is not guaranteed by only opening K1 and K2.Thus, for safety–related reasons, electrical isolation
must be provided by contactor K
enable must be withdrawn 40 ms before the contactor is opened (de–energized). Refer to Sections 9.4.2 and 9.7.
Circuit example =10.
9-286
V2 W2 PE
3)
K
x
K1
U2 V2 W2
U2
V2
W2
1PH
Y/D
Connection diagram for Y/∆ changeover SIMODRIVE 611 analog
. This contactor may only be switched in the no–current condition, i.e. pulse
x
1)
Term. 663 Term. En Term. An
K2
K1
K2h
3)
K
x
K2
K1
Y/∆
Pulse
enable
changeover
from NC/PLC
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
Selectable
2)
relay outputs
2) 2)
Term. An Term. 289
Auxiliary contactor
power supply
max. 30 V DC
K1h
K1h K2h
K1
K2
D
K2 Y
 Siemens AG 2001 All rights reserved
05.01