Over-speed trip - field output (sk2), Over-acceleration trip - field output (sk3), Trusted – Rockwell Automation T8891 Trusted Speed Monitor OFTA (SOFTA) User Manual

Page 12: Speed monitor ofta t8891

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Trusted

TM

Speed Monitor OFTA T8891

Issue 2 Mar 07

PD-T8891

12

3.2. Over-speed Trip - Field Output (SK2)

This connector provides the volt free contact field connections for the over-speed trip output.

NOTE: Over-current protection for the field load must be provided externally.

Pin

Signal Name

Description

1

Over-speed Normally Closed Contact A

2

Over-speed Normally Closed Contact B

Over-speed trip output.

Normally closed contacts (shutdown state)

3

Over-speed Normally Open Contact A

4

Over-speed Normally Open Contact B

Over-speed trip output.

Normally open contacts (shutdown state)

Table 3 Over-speed Trip Field Output Connector (SK2)

3.3. Over-acceleration Trip - Field Output (SK3)

This connector provides the volt free contact field connections for the over-acceleration trip output.

NOTE: Over-current protection for the field load must be provided externally.

Pin

Signal Name

Description

1

Over-acceleration Normally Closed Contact A

2

Over-acceleration Normally Closed Contact B

Over-acceleration trip output.

Normally closed contacts (shutdown state)

3

Over-acceleration Normally Open Contact A

4

Over-acceleration Normally Open Contact B

Over-acceleration trip output.

Normally open contacts (shutdown state)

Table 4 Over-acceleration Trip Field Output Connector (SK3)

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