ComAp IM-NT - Page 116

InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
116
Force value
possible
YES
Description
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.
12.2.2.17 Setpoint: ControllerMode
Group
Basic settings
Range [units]
OFF, MAN, AUT [-]
Related FW
3.0
Description
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 or Remote AUT
is active, then the currenly active mode can be different than the mode
selected by the setpoint (resp. panel buttons).
OFF
All regulations are switched off.
Switching to OFF mode causes opening of BTB regardless of
the settings.
MAN
It is possible to close/open BTB manually under supervision of
IM-NT controller which doesn’t allow to close the breaker if the
bus voltages are not in phase (synchronization starts upon
pushing BTB close/open button).
Pressing BTB ON/OFF button closes/opens BTB if it is
allowed by
 setpoints Synchro enable, Mains coupling,
DeadBusClosing
 binary input BTB disable
AUT
Controller closes automatically BTB if
 bus voltages are within the limits (Phase window,
Voltage window)
 there is voltage on one of the buses and closing to dead