Interface Description; General Information - Siemens SINAMICS S120 Manual

X50 "circuit breaker" checkback contact
Table 6- 14
Terminal
1
2
3
Max. connectable cross-section: 2.5 mm²
NC: Normally-closed contact, NO: Normally-open contact, COM: Center contact
1)
X30 looping in an external EMERGENCY OFF
Terminal block -X30 provides you with the option of connecting an external EMERGENCY
OFF (normally-closed contact) for switching off the circuit breaker.
Table 6- 15
Terminal
1
2
Max. connectable cross-section: 2.5 mm
6.2.2

Interface description

6.2.2.1

General information

This chapter describes only those interfaces in the cabinet unit that require additional
connection work by the customer. All other interfaces are pre-wired at the factory and are not
designed for customer connections.
Note
Additional information
All connections to be established on the plant side as well as the interfaces for integration
into the plant control system are described in the circuit diagrams and terminal diagrams on
the customer DVD supplied with the device.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Terminal block X50 "Circuit-breaker" checkback contact
Designation Technical data
1)
NO "Circuit breaker" checkback contacts
Max. load current: 3 A
NC
Max. switching voltage: 250 VAC
COM
Terminal block X30 "External EMERGENCY OFF" checkback contact
Technical data
Factory-installed jumper between terminal 1 and terminal 2; this jumper must be re-
moved if a normally-closed contact is looped in externally.
6.2 Active Line Connection Modules
2
Cabinet Modules
163