CONTINENTAL CONTROL SYSTEMS WattNode BACnet RWNC-3D-240-BN, Installation Manual

Page: 11 / 16

11
4 Operation
4.1 Initial Configuration
Generally, the network integrator will remotely configure the WattNode meter and the variables.
For details on configuring the WattNode meter, see the appropriate Operating and Reference
Guide
for your model.
The meter does not include a display or buttons, so it is not possible to configure or monitor the
meter directly, other than the basic LED diagnostics described below.
At a minimum, the
CtAmps must be programmed with the rated amps of the attached current
transformers for correct measurements.
4.2 Power Status LEDs
The three status LEDs on the front of the meter can help indicate correct measurements and op-
eration. The “ A ”, “ B ”, and “ C ” on the diagrams indicate the three phases.
4.2.1 Normal Startup
The meter displays the following startup sequence whenever power is first applied.
1.0sec 1.0sec 1.0sec
Green Yellow Red
Green Yellow Red
Green Yellow Red
C
B
A
4.2.2 Positive Power
Any phase with the LEDs flashing green is indicating normal positive power.
Green Off Green Off Green Off
4.2.3 No Power
Any phase with a solid green LED indicates no power, but line voltage is present.
Green
4.2.4 No Voltage
Any phase LED that is off indicates no voltage on that phase.
Off
4.2.5 Negative Power
Red flashing indicates negative power for that phase. Reversed CTs, swapped CT wires, or CTs
not matched with line voltage phases can cause this.
Red Off Red Off Red Off
C
4.2.6 Overvoltage Warning
The following indicates that the line voltage is too high for this model. Disconnect power immedi-
ately! Check the line voltages and the meter ratings (in the white box on the label).
1.0sec
G R G R G R G R G R G R
G R G R G R G R G R G R
G R G R G R G R G R G R
C
B
A