InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
15.2.1.54 Binary output: CtrlHeartBeat
The output provides alternating signal with rate 500ms active / 500ms
inactive while the controller is operational, i.e. it has passed all checks after
startup and no failure was detected.
If the output does not provide the alternating signal it may indicate following:
controller is switched off or
controller is damaged or
incorrect/missing firmware and/or application or
corrupted setpoints
The output is intended for using in wired redundancy systems at the main
controller. Learn more about redundancy in separate chapter Redundant
controllers.
15.2.1.55 Binary output: BTB status
This output indicates the BTB position, how it is internally considered in the
controller. The position is based on BTB feedback input and optionally also
on the BTB fdb neg input.
If only the positive feedback input is used the output mirrors the
feedback.
If both feedbacks are used and they match each other the output
indicates the BTB position according to the feedbacks.
If both feedbacks are used, however they do not match each other,
the output remains in previous position when they matched.
The output can be used for indication of the BTB position.
15.2.1.56 Binary output: LdShed stage 1
This output is used for control of first load group. This is the group which is
disconnected as first one when the load shedding function becomes active.
Connect least important loads to this group.
NOTE:
Learn more about load shedding in the separate chapter Load shedding.
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