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AS-i Bus

Insulation Control Relay for AS-i Bus

03/00

• Test

The relay has a test feature to simulate faults. Each test sequence alternatively simulates an insulation

fault on one of the two AS-i bus polarities. The relay must respond as if the fault was authentic and

following each test, the relay must be reset as detailed above. Each subsequent test sequence checks

the other polarity of the AS-i bus (see function diagram on next page).

Two methods of testing are possible:

• Locally, by pressing the TEST button.

• Remotely, by a change of state of the signal between terminals S3 and S4 lasting more than 30 ms.

Function Diagram

(1)

(3)

(1)

(2)

(3)

(2)

(3)

(2)

(3)

(2)

(1)

Relay off

Supply AS-i (+) AS-i (-)

AS-i (+)

AS-i (-)

LED/OK

FAULT +

FAULT -

Reset S1 S2

Test S3 S4

Output relay

Contacts 15/18

25/28

Relay on

Input at state 0 or contact open

Input at state 1 or contact closed

LED off

LED on

(1) 30 ms minimum

(2) 15 ms

(3) 20 ms

1 2 ... 58 59 60 61 62 63 64 65 66 67 68

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Schneider Electric Splitter Boxes Especificaciones Pagina 63

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