Siemens SIRIUS 3RT - Page 75

Configuration
6.3 Operating mechanism system / coil selection 3RT contactors and 3RH2 contactor relays
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
75
Control
Version of 3RT1...-.N solid-state operating mechanism for PLC output 24 V DC
There are 2 ways of controlling the contactors:
● Variant 1: via A1 / A2
● Variant 2: via 24 V DC PLC output
Control via A1 / A2
The contactors are controlled conventionally by applying the control supply voltage at A1/A2
through a switching contact.
①
Slide switch "OFF"
Note
The slide switch on the front side of the withdrawable coil mus
t be in the "OFF" position
(corresponds to the factory default setting). The contactor can otherwise not be operated via
A1
/ A2.
Control via control input 24 V DC
①
Slide switch "ON"
②
PLC input 2-pin connector
The contactor can be operated direct via an output of a controller (PLC).
● Rated voltage 24 V DC, operating range 17 to 30 V
● Current consumption ≤ 30 mA