InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf, ©ComAp – April 2015
11.2.2.16 Setpoint: Nominal Freq
The setpoint adjusts nominal system frequency (choose 50 Hz or 60 Hz).
Setpoint Nom frq offset is used for setting offset to the chosen nominal
frequency (-2 to +2 Hz with step 0.01 Hz). Controller regulates to the Nominal
Freq + Nom frq offset frequency.
The value Nominal Freq + Nom frq offset is used as 100% for frequency
protections.
11.2.2.17 Setpoint: ControllerMode
This setpoint can be used to select the controller mode. It is equivalent to
selecting the mode by the buttons on the front panel or IntelliVision. Currently
active mode is displayed on the controller main screen.
NOTE:
If any of the mode forcing inputs Remote OFF, Remote MAN, Remote AUT
or Remote TEST is active, then the currenly active mode can be different
than the mode selected by the setpoint (resp. panel buttons).
IM-NT does not influence gen-set group in this mode.
If Mains is healthy and no mains alarm is active, MCB is
closed after MCB close del if MCB opens on is set to
MAINSFAIL. If MCB opens on is set to GEN RUNNING,
MCB stays closed all the time, regardless of the Mains
condition.
In MCB application - if the controller is switched to OFF
mode while the gen-sets are running and there is
voltage on the bus, MCB is not closed before bus
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