KMB NOVAR-1 Series, Operating Manual

Page: 54 / 77

Novar 1xxx KMB systems
54
5.4.1.2 Novar1312-3
Metering current transformer (CT) outputs must be connected as follows :
•
L1- phase current to terminals 41 ( k ) and 42 ( l )
•
L2- phase current to terminals 43 ( k ) and 44 ( l )
•
L3- phase current to terminals 1 ( k ) and 2 ( l )
Unlike other controller models it is necessary to observe phase rotating direction and polarity of
individual phase signals (k, l) ! Otherwise the controller evaluates wrong current, power and power
factor values.
A metering current transformer of nominal output current 5 or 1 A can be used.
Fig 5.1 : Novar-1312 – connectors Fig. 5.2 : Novar-1312-3 – connectors
5.4.2 Transistor Outputs
The controller is equipped with 12 MOSFET-type transistors T1 through T12. Their open collectors are
connected to terminals 18 through 29. Emitters are connected together to terminal 17.
These outputs are designed to connect to thyristor switches’ input otpocouplers via limiting resistors.
This is reflected in limit parameters of the transistor outputs as well: maximum voltage 100 V DC and
maximum current 100 mA.
All of the transistor outputs in the group are galvanically isolated from the other controller circuits. The
transistor outputs must be powered from the switching module’s power supply or from an external
power supply giving 10 to 30 V DC and protected with a fuse 0.3 to 0.5 A (for example ZP-24 that can
be ordered from the controller supplier). The power supply’s negative terminal post must be connected
to the common terminal, number 17.
5.4.3 Relay Outputs
The instrument has 2 output relays, 13, 14. The relays’ contacts go to terminals 33, 34. Relays’
common contacts are internally connected to power supply terminal 3 (
L ) — when an output relay
contact closes, power supply voltage appears at the corresponding output terminal.
The relays’ output contacts are bridged with varistors.
L1
L2
L3
N
ZDROJ
2 1
ALARM
Made in Czech Republic
/
/
NOVAR 1312 / 232 485
Výr.
č
./verze.:
Datum výroby :
IP 4X
U 100 275 VAC, 7VA, ÷ ÷ 43 67 Hz
SPOT
Ř
EBI
Č
5A
(1A)
max.
10A
100÷690 VAC 230 VAC
k l L1 N
N L1 L2/N L1
max. 6A max. 6A
2. TARIF
RS 232/485
Rx
TR A B GND
Tx GND
1 2 3 4 5 6 7 8 9 10 11 12
Made in Czech Republic
/
/
NOVAR 1312-3 / 485 E
Serial / vers.:
Product. date :
IP 4X
U 100 275 VAC, 7VA, ÷ ÷ 43 67 Hz
58÷690 VAC
L L/N
max. 6A max. 6A
14 13
ALARM
1 2 3 4 5 6 7 8 9 10 11 12
2. TARIF max.
10A
100÷275 VAC
k l L N
N L
k l k l
CAT III
5A
(1A)
CAT III
L1
L2
L3
N
SUPPLY LOAD