Rockwell Automation 1420 PowerMonitor 500 User Manual
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Rockwell Automation Publication 1420-UM001D-EN-P - September 2013
Appendix B
Technical Specifications
Data (bidirectional)
Dynamic (reading only)
System and phase variables: see the Modbus register tables
Static (reading and writing only)
All the configuration parameters; see the Modbus register tables
Data format
1 start bit, 8 data bit, no/even/odd parity,1 stop bit
Communication rate
Selectable:9.6, 19.2, 38.4, 115.2 Kbps
Note
With the rotary switch (on the back of the basic unit) in lock position, modification of programming parameters and reset
command by means of serial communication are not allowed. In this case just data reading is allowed
Insulation See
Isolation Between Inputs and Outputs (1 minute)
Table 36 - Serial RS-485/RS-232 Communication Specifications (485 option)
Attribute
Value
Table 37 - Energy Meters
Attribute
Value
Meters
Total
4 (9+1 digit)
Partial
4 (9+1 digit)
Pulse output
Connectable to total and/or partial meters
Energy meter recording
Storage of total and partial energy meters. Energy meter storage format (EEPROM)
Min. -9,999,999,999.9 kWh/kVARh
Max. 9,999,999,999.9 kWh/kVARh
Energy meters
Total energy meters
+kWh, +kVARh, -kWh, -kVARh
Partial energy meters
+kWh, +kVARh, -kWh, -kVARh
Table 38 - Display, Status Indicators, and Commands
Attribute
Value
Display refresh time
100 ms
Display
4 lines, 4-DGT, 1 lines, 10-DGT
Type
LCD, single color backlight
Digit dimensions
4-DGT: h 9.5 mm; 10-DGT: h 6.0 mm
Instantaneous variables read-out
4-DGT
Energy variables read-out
Imported Total/Partial: 9+1DGT or 10DGT;
Exported Total/Partial: 9+1DGT or 10DGT (with ‘-’ sign)
Run hours counter
8+2 DGT (99.999.999 hours and 59 minutes max)
Overload status
EEEE indication when the value being measured is exceeding the ‘Continuous inputs overload’ (max measurement
capacity)
Max and min indication
Max instantaneous variables: 9999; energies: 9 999 999 99.9 or 9 999 999 999.
Min instantaneous variables: 0.000; energies 0.0
Front position status indicators
Virtual alarms
4 red status indicators available in case of virtual alarm (AL1-AL2- AL3-AL4).
Note that the real alarm is just the activation of the proper static or relay output if the proper module is available
Energy consumption
Red status indicator (only kWh)