KMB NOVAR-1 Series, Operating Manual

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Novar 1xxx KMB systems
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The measurement voltage must be protected externally. If the measurement voltage is identical with
power supply voltage, they can share a circuit breaker. Otherwise each voltage branch must be
protected with fuses or circuit breakers of nominal value 1 to 6 A.
If the measurement voltage is connected via a metering voltage transformer, you have to enter the
transformer turns ratio in instrument setup (parameter 17 – see further below) for correct expression of
measurement values displayed.
2.2.3 Measurement Current
A metering current transformer of nominal output current 5 or 1 A can be used – the metering current
transformer’s ratio must be entered when setting up the instrument for proper measured values
display (parameters 12, 13 – see further below).
2.2.3.1 Novar 11xx / 12xx / 13xx Controllers
Metering current transformer (CT) outputs connect to terminals 1 ( k ) and 2 ( l ). At 10xx line controllers,
connection polarity is opposite : terminal 1 is l and terminal 2 is k .
The connector features a screw lock to prevent accidental pull-out.
2.2.3.2 Novar 10xx Controllers
At 1005/1007 controllers, connect a metering current transformer (CT) outputs to terminals 1 ( k ) and 2
( l ).
At 1005D/1007D controllers, terminal numbers are 6 (
k
) and 7 (
l
).
2.2.4 Error Indication
2.2.4.1 Novar 11xx / 12xx / 13xx Controllers
The instrument has an auxiliary Alarm relay to indicate nonstandard conditions. This relay’s contact
goes to terminals 17 and 18.
2.2.4.2 Novar 10xx Controllers
Non-standard events can be signalled by one of last two output relays (if they are not used for control).
It is necessary to set such relay function properly, see parameter 26.
2.2.5 Output Relays
The instrument has 6, 8 or 14 output relays (depending on controller model). The relays’ output
contacts are internally wired with varistors.
2.2.5.1 Standard Version Controllers
The relays’ contacts go to terminals 19 through 32.
The relays’ common contacts are internally connected to power supply terminal L ( No. 3 ). When an
output relay contact closes, power supply voltage appears at the corresponding output terminal.
2.2.5.2 “/S400” Version Controllers
The relays’ contacts go to terminals 19 through 32.
Despite of standard version, the relays’ common contacts are connected to additional terminals 33,
34.