3RK1901-0NA00

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Various add-on modules are available for communication of the 3RA6 compact starter with the control system using AS-Interface:

• Standard versions
• With two local inputs
• With two free external inputs
• With one free external input and output each
• With two free external outputs
• Local control

The AS-i add-on modules can be combined only in connection with compact starters with a rated control supply voltage of 24 V AC/DC.

AS-i add-on module for on-site controller

With this new module it is also possible for the connected compact starter to be operated directly using simple switches, i. e. without recourse to AS-i Communication, if required.

"Automatic" mode

NC contacts can be connected to the inputs Y2 and Y4 through the local terminals on the AS-i add-on module. If the "+" connections are connected simultaneously to both local inputs, the AS-i add-on module will be in "Automatic" mode, i.e. it will communicate with the control system through AS-Interface.

Local control

Opening the two inputs Y2 and Y4 will result in the direct disconnection of the compact starter. Operation through AS-i Communication is ended and the compact starter can now be switched on and off directly using NO contacts (one NO contact per direction of rotation on the reversing starter).

"LED AUX Power" must light up green, the 24 V DC supply must be assured and the AS-i control supply voltage must no longer be applied.

Resetting to "Automatic" mode

Simultaneous application of a "1" signal at the local inputs. The availability bit DI 0 is switched to a "1" signal.

If AS-i Communication is reset, the motor is first switched off and then on again when requested by the control system.

Circuit diagram example for controlling a 3RA6120 direct-on-line starter using an AS-i add-on module for local control

Circuit diagram example for controlling a 3RA6250 reversing starter using an AS-i add-on module for local control