Connecting Terminals - Siemens SIRIUS 3RA6 System Manual

Accessories
7.12 AS-i mounting module for 3RA61/3RA62 compact starter
7.12.5.3

Connecting terminals

You can connect limit switches, for example, via the terminals on the AS-i mounting module.
The following options are available to you:
● 3RA6970-3B: When the contacts open, the limit switch function immediately shuts down
the compact starter. The direct starter is shut down via terminals Y1 - Y2. In the case of
the reversing starter, direction of rotation 1 is shut down via terminals Y1 - Y2, and
direction of rotation 2 is shut down via terminals Y3 - Y4.
The safety function implemented by the shutdown must be tested by the plant operator at
suitable intervals in accordance with risk analysis. The installation environment must
meet the requirements of an IP54 environment. Suitable cabling and a suitable NC
contact must be used.
● 3RA6970-3C, -3D, -3E: The inputs and/or outputs can be switched as follows:
– Inputs: floating switches (IN4, IN2)
– Outputs: resistive loads (OUT2, OUT3)
● 3RA6970-3F: The local inputs Y1 - Y2 and Y3 - Y4 are used for switching from automatic
to manual mode and for manual control of the compact starter.
Pin assignment of the terminals for 2 local inputs for safe shutdown (3RA6970-3B)
Table 7- 15
Terminals
Y1, Y2
Y3, Y4
Note
If the terminals Y1-Y2 and/or Y3-Y4 are not used these must be bridged irrespective of the
compact starter (direct starter or reversing starter).
224
Terminals for 2 local inputs for safe shutdown (3RA6970-3B)
Meaning
Connecting terminals for limit switch 1 for safe
shutdown of "direction of rotation 1"
Connecting terminals for limit switch 2 for safe
shutdown of "direction of rotation 2"
(only if mounting a reversing starter)
Image
SIRIUS 3RA6 compact starter
System Manual, 08/2018, NEB560060102000/RS-AB/007