3Rw44 22 To 3Rw44 25 - Siemens Sirius 3RW44 System Manual

Circuit examples
8.1.3 3RW44 in a standard circuit with DC braking

3RW44 22 to 3RW44 25

Main circuit
1)
L1 3/N/PE 400 V AC , 50 Hz
L2
L3
Q1
(optional
semi-
F3
conductor
protection)
L1 L2
L3
G1
T1 T2 T3
K2 K2 K2
2
U1 V1 W1
M1
M
3~
PE
1) For permissible main and control voltage values, refer to Technical Data, pages 9-7 to 9-10.
2)
2) Caution: risk of restart!
The start command (e.g. by the PLC) must be reset before a reset command, since an automatic restart is
executed when a start command is pending after the reset command. This especially applies to motor
protection tripping. For safety reasons it is recommended to integrate the group fault output (terminals 95
and 96) into the control.
3) If the "combined braking" stopping function is selected, no brake contactor is necessary.
If the "DC braking " stopping function is selected, a brake contactor must be additionally used. Refer to the "branch component layout (standard circuit)"
table on page 9-15 for types.
The "DC braking" function is recommended for applications with larger centrifugal masses (J
Output 2 must be switched over to "DC brake contactor".
8-4
3)
Control circuit
1)
L1 1/N/PE 230 V AC , 50 Hz
+24 V DC
F2
M
A1 L+ L-
G1
DC braking contactor 3)
PE
A2 13 14
On period
PE
N
stopping function for device types
PLC output
2)
Start Reset
K2
IN1 IN2 IN3
Group error
23 24 33 34 95
No action
K2
> J ).
load motor
PLC-input
PTC type A or
Thermoclick
IN4 T1 T2
96
+
98
NSB0_01502
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 01