Novar NOVAR-1xxx NRC Operating Manual - 4. Putting In Operation
Novar-NRC
KMB systems
20
4. Putting in Operation
4.1 Remote Controlled Target PF Compensation Systems
For remote controlled power factor the NRC86-85 24 VDC remote controller is needed. If remote
controlled outputs using additional NRC86 units in cascade necessary too it is better to use the
NRC86-07 230 VAC models with 7 outputs each for this task.
One or more (up to 32) Novar1xxx NRC PFCs can be connected to.
Commissioning procedure step-by-step :
1. Install the Novar1xxx NRC PFC (or multiple PFCs) according its Operation Manual.
2. Install the NRC86 units according the Installation chapter of this manual.
3. Interconnect the NRC86 units and the PFC(s) with a communication link. Install terminating
resistors on the link ends. Switch the units’ power supply on and set the communication link
parameters No. 10, 11 a 12 according the specification above, i.e. the first unit ( which runs in
the RCC mode) address to 200 and the next units to 201, 202, 203 etc., step-by-step.
4. Set daisy-chain communication mode ( parameter 6 to 1) at all of the units but the last one
and the last unit to 0.
5. Set number of processed outputs ( parameter 5 ) at all units operating as remote controlled
outputs.
6. Power up the PFC (or PFCs). Check communication rate ( p. 51), eventually set to
correspond to the NRC86 unit setting. In the parameter 30, clear the section failure alarm (
No. 12 to „0“ ) and set the remote control failure alarm No. 15 to value „S“or to „2“.
7. In the „master” PFC, set the RCC-mode in parameter 53. The PFC will start transmitting
commands and the NRC86 unit should answer. Now set the NRC86 response timeout in
parameter 52. For transparent communication links set the value to 0. For non-transparent
links set the value (in seconds) that corresponds to maximum transmission delay of the
communication loop. Check the remote control function :
•
The Rx and Tx LED-diodes of the NRC86 units must flashing synchronously to the
running communication. In the parameter 01 of the first unit, the RCC mode must be
displayed, optionally installed other units should indicate the I/O mode. At the first
unit one of unit outputs O1 ÷ O5 corresponding to serial number of remote
controlled PF in parameter 02 must be switched on, optional other units should copy
the PFC outputs’ states on their outputs. The units should not indicate any alarm, or
the external alarm only can be active ( the alarm of supervisory PFC, transmitted to
the unit)
•
The PFC(s) should not indicate the remote control failure alarm. In the parameter
81, the serial number of remote controlled PF corresponding to that of the NRC86
unit should be. In parameter 01, appropriate remote controlled target PF value with
preceding „E“-character must appear.
8. In case of multiple PFCs connected, all other PFCs but the „master” one must be set to the
passive remote controlled PF mode, i.e. the parameter 53 to value RCCP. Parameter 52
must be set to the same value as the „master” PFC is set.