User manual
Table Of Contents
- Important Safety Instructions
- 1.0 Installation Instructions
- 1.1 Unpacking and Installation
- 1.2 Additional Distribution Mounting and Wiring
- 1.3 Power and Control Wiring
- 1.3.1 Input Power Connections
- Figure 5 Electrical connection location for 23" (584mm) cabinet
- Figure 6 Electrical connection location for 47" (1194mm) cabinet
- Figure 7 Electrical connection location for 47" cabinet with Square D I-Line panelboard
- Table 4 Suggested minimum input wire size data
- Table 5 Main input circuit breaker interrupting rating
- 1.3.2 Junction Box Installation
- Table 6 Main input junction box electrical connections (4 wire)
- Table 7 Main input junction box without transformer electrical connections (5 wire)
- Table 8 Low-voltage (control) junction box dimensions, typical
- Table 9 Main input (power) junction box dimensions, typical
- Figure 8 Low-voltage control junction box connections, typical
- Figure 9 Main input junction box connections, typical
- 1.3.3 System Grounding
- 1.3.4 Grounding Electrode Conductor for Liebert® FPCs With Transformer
- 1.3.5 Output Power Connections
- 1.3.6 Control Wiring Connections
- 1.3.7 Adapter Board
- 1.3.1 Input Power Connections
- 2.0 Equipment Inspection and Startup
- 3.0 Inspection and Startup Checklist
- 4.0 Operating Instructions
- 5.0 Maintenance
Operating Instructions
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4.4 Liebert Current Plus Monitoring (If Supplied)
Liebert Current Plus Monitoring (Liebert CPM) provides the current and voltage of each panelboard
main circuit breaker. These measurements are used for reporting the average RMS current, power
and other parameters. The Liebert CPM detects and annunciates alarm messages and status
conditions for each panelboard main circuit breaker. The monitored parameters and alarms appear
on the local display and are available for communication to a customer or Liebert monitoring system.
The Liebert CPM includes a monochrome LCD, power and alarm LEDs, an audible alarm and alarm
silence and Emergency Power Off push buttons mounted on the front door.
Display Controls and Indicators
• Power Indicator (Green LED) - illuminates when power has been applied to the Liebert Power
product.
• Alarm Status Indicator (Red LED) - illuminates when the Liebert CPM detects an alarm. The
LED will remain illuminated until the alarm condition is cleared.
• Audible Alarm speaker (represented by the speaker symbol) - a speaker behind the bezel will
sound when the Liebert CPM records an alarm condition.
• Silence/Reset Push Button - pressing the Silence/Reset button will silence the audible alarm.
Press the button a second time to clear the alarm and turn off the red alarm indicator LED if the
alarm has cleared.
• Emergency Power Off (EPO) Push Button - pressing the EPO button shunt trips the input
circuit breaker to turn the unit off.
• LCD - displays power parameters and alarm data.
• Navigation keys (soft function keys F1 through F4 and Help):
• F1 selects the next Main Breaker.
• F2 is the Sequence key. It selects the next set of items at the current level or the next item on
a list.
• F3 can select a menu item.
• F4 can provide a Back function at lower levels.
Pressing the Back key (F4) navigates to the top level (Main) except from the Help screen.
From the Help screen, the Back key navigates to the previous screen.
• Pressing the Help key navigates to the Help screen.
All alarm thresholds for monitored parameters are adjustable by way of the DB-9 setup port to match
site requirements. All alarms are stored in non-volatile memory to protect against erasure by a power
outage. Alarms must be reset manually after the alarm condition has been corrected. Alarms may be
reset by pushing the Silence/Reset button on the display or through the remote monitoring system (if
used).
The Liebert CMP monitors and displays the following parameters for the panelboard main circuit
breaker:
• Phase Current
• Percent Load
•kW
•kW-Hours