Siemens SINAMICS S120 Manual page 244

Cabinet Modules
5.7 Central Braking Modules
X2 control terminals
Table 5- 42 Terminal strip X2 control terminals
Terminal
1
2
3
4
5
6
Max. connectable cross-section: 2.5 mm
NO: Normally-open contact, NC: Normally-closed contact, COM: Center contact
1)
X5 braking resistor connection
Table 5- 43
Terminal
1
2
S1 reset key
Table 5- 44
Function
Reset key
The key performs the same function as control terminal -X2:1/2.
S2 threshold switch
Table 5- 45
Item
1
2
The response threshold at which the Braking Module is activated and the resulting activated
DC link voltage for braking mode are specified in the following table.
242
Function Meaning
DI 24V 0 = Normal operation
ground 1 = inhibit, reset
Ground Ground
DO.COM Center contact
1)
DO.NO 0 = Fault
1)
1 = Ready
DO.NC 0 = Ready
1)
1 = Fault
2
Terminal strip X5 braking resistor
Function
Braking resistor connection
Braking resistor connection
Reset key S1
Meaning
0 = Normal operation
1 = Disable, reset
Threshold switch S2
Function
Upper switching threshold (factory setting)
Lower switching threshold
Technical data
24 V AC/V DC, input load
approximately 10 mA (connection
not required)
Centralized fault indication for:
No DC link voltage,
overtemperature, overload, short
circuit/ground fault.
Switching capacity: 250 V, 2 A,
250 VA AC voltage
Cabinet Modules
Manual, 03/2013, A5E03263538A