Behavior Of Relay At Channel Startup - SKF Multilog On-Line System IMx-M User Manual

Protection
Relays

Behavior of Relay at Channel Startup

Table 2-7: Behavior of relay at channel startup.
Behavior of Relay at Channel Startup
Relay Status
Current Channel Relay
Operational on Relay Module
Mode
Normally
Energized
Previous status +
Configuration
triggered due to
update (slot
reboot
disarm
assumed)
Previous status +
FW update (slot
triggered due to
disarm
reboot
assumed)
Triggered due to
Mains power
mains power off
up*
Previous status
Protection
module hot
swap (slot
disarm
assumed)
Triggered due to
Relay module
relay module removal
hot swap (slot
disarm
assumed)
*During reset or power down, all relays will be in non-energized state.
2 - 34
Slot Status Relay
on Protection Module
Normally De- Disarm
energized
Previous status + not Triggered with a
triggered due to short not triggered
reboot due to reboot
Previous status + not Triggered with a
triggered due to short not triggered
reboot due to reboot
Not triggered due to Previous status + not
mains power off triggered during
mains power off
Previous status Triggered + not
triggered during
module removal
Not triggered due to Triggered
relay module removal
Circuit Fault
Triggered
Triggered
Triggered
Triggered
Triggered
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