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

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)