Protection
Relays
Behavior of Channel Status Relays on Relay Module
Ch Relay
Ch
Type
Alert
Not OK*
-
-
-
-
Power Supply
-
Failure Indicator
Off
X
X
Digital Ch Alert
X
X
On
-
-
-
-
Digital Ch
Danger
-
-
-
- = Not applicable
X = Don't care
On = 1
Off = 0
* Channel used to configure relay alarm voting "2 out of 2" or "2 out of 3"
** Refer to the table
Behavior of Relay at Channel Startup
Note: The behavior of slot disarm applies when the slot associated with the source channels is disarmed.
As an example, if a relay on RLM1 is configured to act on a channel or channels from slot 2, only a slot 2
disarm would result in the
2 - 30
Ch
Ch
Ch
Danger
Not
Start
OK
X
X
X
X
On
Off
On
X
Off
-
-
On
-
-
-
Off
-
Off
X
-
X
X
-
X
X
-
Off
On
-
Off
X
-
Off
-
-
On
Off
-
Off
X
-
X
X
-
X
X
-
Off
On
-
Off
-
-
On
listed in the table.
behavior
Ch
Slot
Relay
Disarm
Disarm
Status
(see
note)
On
Off
Not triggered
Off
Off
Triggered
Off
Off
Triggered
-
-
**
-
-
See
IMx-M Manager section.
Off
Off
Not triggered
X
X
Previous status
On
Off
Not triggered
Off
Off
Not triggered
Off
Off
Triggered
Off
Off
Triggered
-
-
**
Off
Off
Not triggered
X
On
Previous status
On
Off
Not triggered
Off
Off
Not triggered
Off
Off
Triggered
-
-
**
SKF Multilog On-Line System IMx-M
Available Relay Types
in
User Manual
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