Installation
Connecting the MD-P1 and MD-P1D Power Meters
19
Siemens Industry, Inc.
125-201
09/30/2019
6.
Plug the terminal block back into the MD-P1 or MD-P1D Power Meter and
mechanically secure the FLN wire terminations to the power meter to prevent
accidental removal.
Figure 7: Connecting and Insulating FLN Cable on MD-P1/D FLN Connector.
WARNING
Carefully insulate all FLN lines, including shield, to prevent accidental contact to high
voltage conductors.
After wiring FLN cable, remove all scraps of wire or foil shield from electrical utility
panel.
7.
Energize the MD-P1 or MD-P1D Power Meter. It is powered through the red power
connector (see wiring connections in Figure 3).
8.
Verify proper power meter operation. For normal operation, the RS-485 LED blinks.
9.
Close the electric equipment housing.
10.
Using a voltmeter, check for high voltage. There should be no significant voltage
(no more than 5V AC or DC) from either FLN leg to ground. If voltage is higher than
5V, check for incorrect wiring.
WARNING
To avoid personal injury or damage to FLN trunk devices, verify no significant voltage
(no more than 5V) exists on the FLN. The MD-P1 and MD-P1D Power Meters are
designed to be located inside high voltage switchgear. They measure electrical use,
and connect directly to the FLN.
11.
Insert the CT wires into the green connector/s. See Figure 7.