Siemens ECOFAST, Manual

Page: 53 / 77

Device functions
ECOFAST Motor Starters
5-4
GWA 4NEB 950 0562-12
5.3 Mechanical braking
Description
A mechanical disk brake or spring-loaded brake mounted on the motor bra-
kes the motor. The brake is controlled via the brake output.
Typical circuit
The diagram below shows an example of a typical circuit for mechanical
braking:
Fig. 5-1: Typical circuit for mechanical braking
Control output
The brake is controlled with output DO-0.2:
• Brake DO-0.2 [1]: ON
[0]: OFF
M
3~
L1 L2 L3
AC
Brake output
10 9 8 7 6
5 4 3 2 1
Pin Assignment
1 Winding terminal U1
2 Winding terminal V1
3 Winding terminal W1
4 Brake (reference potential)
5 Brake
6 Winding terminal W2
7 Winding terminal U2
8 Winding terminal V2
9 Temperature sensor
(terminal a)
10 Temperature sensor
(terminal b)
Current
transformer
Braking
magnet