Novar NOVAR-1xxx NRC Operating Manual - page 15
Novar-NRC
KMB systems
15
3.2 Operation
3.2.1 Remote Controlled Power Factor (Cosinus) Mode – the „RCC“ Mode
Up to five pulse signals can be connected to the NRC86 unit. A pulse of correct duration on one of
inputs 1
÷
5 is evaluated as target PF serial number request. The unit saves the number into its
memory and confirms by switching of appropriate output on ( this signal is transmitted back to the
supervising system for checking ).
The Novar1xxx NRC PFC (or several PFCs) periodically reads the target PF serial number from the
unit and uses appropriate preset target PF for compensation.
The instrument address (parameter 10) must be set to 200. If other NRC86 units for remote controlled
outputs connected too, the daisy-chain communication option (parameter 6 ) must be set at all of the
units in the cascade but the last one. The other units’ addresses in the cascade must be increasing by
one, i.e. 201, 202 etc.
3.2.2 Remote Controlled Outputs – the „I/O“ Mode
For such applications the NRC86-07 unit model is suitable. It has 7 outputs (and no input). For
compensation systems with more than 7 outputs, two NRC86-07 units are necessary. Optionally you
can use up to 7 units in cascade if you need to spread remote outputs spatially.
The unit is installed in a PF compensation capacitor ( or choke) switchboard. It must be interconnected
with distant Novar1xxx NRC PFC using a communication link. The capacitor (or choke) contactors
must be connected to the NRC86 unit outputs; the PFC outputs stay unconnected.
The address (parameter 10) of the first unit must be set to 200. If other NRC86 units connected, the
daisy-chain communication option (parameter 6 ) must be set at all of the units in the cascade but the
last one and their addresses must increase by one, i.e. 201, 202 etc.
With the parameter 5 the number of processed outputs in the unit can be set. The parameter is preset
to the maximum number of outputs of the unit, but it can be decreased to “N” – then, the unit outputs
O1 ÷ ON will follow the PFC outputs’ state starting from the first output that is not processed by the
previous unit.
Example : The 1
st
unit (address 200) is set to 4 processed outputs; the 2
nd
unit (address=201) is set to
6 processed outputs. Then, at the 1
st
unit O1÷O4 outputs the PFC 1÷4 outputs will appear and the 2
nd
unit O1÷O6 outputs will copy the PFC ouputs No. 5÷10. The daisy-chain communication must be
activated at the 1
st
unit and deactivated at the 2
nd
unit.
3.2.3 Manual Mode
In the Manual mode, the NRC86 unit goes on receiving commands and answering to them, but the
unit outputs stay unchanged - they can be changed manually only in the same way as a Novar PFC
outputs.
3.3 NRC86 Remote Controller Parameters
3.3.1 Parameter 01 – Remote Control Mode
The remote control mode of the NRC86 unit is displayed in the parameter – it can be either
i0
i0
i0
i0
(remote controlled outputs) or
rCC
rCC
rCC
rCC
(remote controlled PF).