Rockwell Automation Allen-Bradley PowerMonitor 5000 Unit - Page 19

Rockwell Automation Publication 1426-UM001J-EN-P - August 2019 19
Install the PowerMonitor 5000 Unit Chapter 2
You must ground voltage and current sensing circuits to limit the maximum
voltage to ground for safety. Ground CT secondary circuits at either the CT or
the shorting terminal block. All grounds must be made to a common ground bus
or terminal.
See the Industrial Automation Wiring and Grounding Guidelines, publication
1770-4.1
, for additional information.
Wiring Accessory Kit
The power monitor accessory kit simplifies the installation of a
PowerMonitor 5000 unit by making all required installation accessories available
in one catalog number, 1400-PM-ACC. The accessory kit includes the following
items:
• Three10 A fuses and blocks voltage sensing wiring protection
• One 1 A fuse and block for control wiring protection
• One 8-pole shorting terminal block for CT wiring
Contact your local Allen-Bradley distributor or Rockwell Automation sales
representative for more information.
Voltage and Current Sensing Connections
The PowerMonitor 5000 unit can monitor various three-phase, single-phase, and
split-phase circuits. Select the voltage sensing connections, current sensing
wiring, and metering mode to match the configuration of the circuit being
monitored.
Tab l e 5
provides a key to select the proper wiring diagrams and metering modes.
Table 5 - Selecting Wiring Diagrams and Metering Modes
Circuit Type Line - Line Voltage No. of CTs No. of PTs Voltage Sensing Current Sensing Metering_Mode
3-phase, 4-wire wye ≤690V 3 - Diagram V1 Diagram I3 Wye
> 690V 3 Diagram V3
3-phase, 3-wire
grounded wye
≤690V - Diagram V2
> 690V 3 Diagram V5
3-phase, 4-wire
impedance grounded
wye
≤690V - Diagram V1
> 690V 3 L-N Diagram V3
3 L-N, 1 N-G Diagram V4
3-phase, 3-wire Delta,
or ungrounded wye
≤690V 2 - Diagram V2 Diagram I2 Delta 2 CT
3 Diagram I3 Delta 3 CT
> 690V 2 2
(2)
Diagram V6 Diagram I2 Open delta 2 CT
3 Diagram I3 Open delta 3 CT