
Protection
Relays
2 - 30
SKF Multilog O
n-Line System IMx-M
User Manual
Slot Status Relays on Protection Module
In addition to the relays on relay modules, each protection module also has the
following two slot status relays located in the back of each CMM + PRM slot.
•
Slot Status Relay Circuit Fault (CF or Cf)
–
The slot status relay circuit fault is normally energized when there is no circuit
fault.
–
Any detected circuit fault will de-energize the circuit fault relay.
–
A detected circuit fault will be indicated by "COMMON Circuit Fault" LED
indicator on the front of protection module.
•
Slot Status Relay Disarm (Dis)
–
The slot status relay disarm is energized during slot disarm.
These two slot status relays are not user configurable.
For the physical location of slot status relays, refer to Protection Module (PRM).
For the layout of slot status relays, refer to
RS485, Relay Outputs, Rack Disarm
+ PRM Slot Connections chapter.
Table 2-6: Behavior of slot status relays.
Behavior of Slot Status Relays
Slot Status
Relay
Ch
Alert
Ch
Danger
Ch
Not OK
Ch
Start
Ch
Disarm
Slot
Disarm
Relay
Status
Disarm
-
-
-
Off
Off
Off
Not triggered
-
-
-
Off
Off
On
Triggered
-
-
-
Off
On
Off
Not triggered
-
-
-
Off
On
On
Triggered
-
-
-
On
-
-
**
Circuit Fault
-
-
Off
Off
-
-
Not triggered
-
-
On
-
Off
-
Triggered
-
-
Off
On
-
-
**
-
-
On
-
On
-
Not triggered
- = Not applicable
** Refer to the table