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Contact Ports

The contacts port is formed using six (6) pins numbered from left to right (see fig. 1), which can be

connected to an external monitoring system (such as a BMS) in order to monitor the operational

status of the ATS.

The external equipment must respect the voltage and current characteristics of contacts port.

Fig. 1: Focus on contacts port.

The contacts port provides the following pins:

 Pin 1: common contact.

 Pin 2: “Source B” active contact (if the contact between “pin 1” and “pin 2” is closed, output is

supplied by “Source B”).

 Pin 3: “Source A” active contact (if the contact between “pin 3” and “pin 1” is closed, output is

supplied by “Source A”).

 Pin 4: “Source A” status OK contact (if the contact between “pin 4” and “pin 1” is closed,

“Source A” is present and regular).

 Pin 5: “Source B” status OK contact (if the contact between “pin 5” and “pin 1” is closed,

“Source B” is present and regular).

 Pin 6: Status OK contact (if the contact between “pin 6” and “pin 1” is closed, ATS functioning

status is regular).

The following diagram shows the functioning of the contacts port.

Fig. 2: Contacts port basic diagram.

ATTENTION: The pins of the contact port are able to carry maximum current of 8A and maximum

voltage of 250Vac.

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Powerwalker ATS Bedienungsanleitung Seite 7