Protective Conductor Connection - Siemens SINAMICS S120 Manual

Motor Modules in booksize C/D-type format
3.3 Interface description
NOTICE
Faulty brake function due to inadmissible wear
Inadmissible wear means that the braking function can no longer be guaranteed.
• Comply with the defined Emergency Stop characteristics.
• Avoid repeated brief acceleration of the motor against a holding brake that is still closed.
Note
Motor holding brake connection
The motor holding brake must be connected via outputs BR+ and BR- of the Motor Module.
The BR- cable must not be connected directly to electronics ground (M).
3.3.3

Protective conductor connection

Screw
Ring/pipe-type cable
lug
Tightening torque
Screwdriver
With a maximum width of 12 mm (0.47 in)
1)
50
Consider the operating times of the brakes and the relays in the drive control and/or
enable circuit.
50 mm modules
M5
M5
3 Nm (26.6 lbf in)
Torx 20
100 mm modules
(30 A, 2 x 18 A)
M5
M5
1)
3 Nm (26.6 lbf in)
Torx 20
100 mm modules
(45 A / 60 A)
M6
M6
6 Nm (53.1 lbf in)
Hexagon Torx
Power Units in Booksize C/D-Type Format
Manual, 12/2018, 6SL3097-5AC20-0BP0