Emerson Liebert Remote Monitoring Panel User Manual download pdf (Page 33)

Operating Instructions

4.6 Liebert LDMF (Optional)

If the Liebert RDC is equipped with the optional Liebert LDMF, the monitoring unit is On whenever

power is supplied to the unit. The Liebert LDMF is factory-configured for 1-pole, 20A branch break-

ers. Alarms, alarm setpoints, circuit breaker names and circuit breaker ratings are all field-adjust-

able through the DB9 connector (LDMF SETUP port next to the panelboard main circuit breaker).

For more information, refer to 1.8 - Liebert LDMF

™

Current Transformer (CT) Installation for

branch circuit breaker connections, 1.9 - Liebert LDMF Communication for communication

options and connections and the Liebert LDMF user manual (SL-20200).

The Liebert LDMF has an optional local display that allows users to view monitoring information for

the panelboard main circuit breaker as well as each individual branch circuit breaker. Alarm data can

be viewed from the local display for up-to-date breaker status.

Figure 24 Liebert LDMF optional local display

The Liebert LDMF monitors and displays the parameters listed in Table 1.

Table 1 Liebert LDMF monitored parameters

Parameters

Panelboard

branch

circuit breaker

Displayed and monitored for each:

Panelboard main circuit breaker

and Square D I-Line

panelboard

Square D I-Line

panelboard

circuit breaker

Subfeed

circuit

breaker

Voltage

Line-to-line —

✔

——

Line-to-neutral —

✔

——

Phase Current

✔✔ ✔✔

Neutral Current —

✔✔✔

Ground Current —

✔✔✔

kVA —

✔✔✔

✔✔ ✔✔

kW-Hours

✔✔ ✔✔

Percent Load

✔✔ ✔✔

Power Factor —

✔✔✔

Crest Factor —

✔✔✔

Total Harmonic Distortion (THD)

Voltage THD —

✔✔✔

Current THD —

✔✔✔

Circuit identification and status of each breaker are also displayed.

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Emerson Liebert Remote Monitoring Panel User Manual Page 33

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