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Protection
Relays
2 - 28
SKF Multilog On-Line System IMx-M
User Manual
Hot-swap of a relay module containing shared relays will affect all protection
modules that are associated with the shared relays.
Hot-swap of a protection module with shared relays in different slots will
affect the associated relay modules.
Relays on Relay Modules
Relays 1 to 28 are of SPDT (Single pole, double throw) type and relays 29 to 32 are
of DPDT (Double pole, double throw) type.
Relays are software configured without any need for DIP switch settings. The
software configuration of relays is described in
M Manager.
Relays are based on flexible relay logic with Voting as well as and/or logic.
Relays can be configured as normally energized or normally de-energized.
Normally energized has the power on all the time until the relay is triggered. In
such case, relay goes into alert/danger upon power failure.
–
Default state for alert is energized.
–
Default state for danger is de-energized.
Figure 2 - 18.
Relay Connector Configuration.
Relays can be configured for latching or non-latching alert/danger.
Relays can be connected as normally open or normally closed.
Relays have redundant relay functionality.
–
Several relays can be configured to a single channel.
–
Relays associated to different protection modules can be configured to a single
channel.
Each relay module provides LED status indicator for each relay as described in
within LED Indicators.