Allen-Bradley 1420-V1, User Manual, Page: 69 / 90

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 69
Technical Specifications Appendix B
kWh pulsating 0.001 kWh/kVARh by pulse if the Ct ratio by VT ratio is
≤
7
0.01 kWh/kVARh by pulse if the Ct ratio by VT ratio is
≥
7.1
≤
70.0
0.1 kWh/kVARh by pulse if the Ct ratio by VT ratio is
≥
70.1
≤
700.0
1 kWh/kVARh by pulse if the Ct ratio by VT ratio is
≥
700.1
≤
7000
10 kWh/kVARh by pulse if the Ct ratio by VT ratio is
≥
7001
≤
70.00k
100 kWh/kVARh by pulse if the Ct ratio by VT ratio is >70.01k
Max frequency: 16 Hz, according to EN50470-1
Rear position Status Indicators
On the base Green as power-on
On communication modules Two status indicators: one for TX (green) and one for RX (amber)
Key-pad For variable selection, programming of the instrument working parameters, ‘dmd’, ‘max’, total energy, and partial energy
Reset
Table 40 - Display, Status Indicators, and Commands
Attribute Value
Table 41 - Main Functions
Attribute Value
Password Numeric code of max four digits; two protection levels of the programming data
1st level Password ‘0’, no protection
2nd level Password from 1…9999, all data are protected
System selection
System 3P.n unbalanced load 3-phase (4-wire Wye)
System 3P unbalanced load 3-phase (3-wire) Delta
Three currents and three line-to-line voltage measurements
For ARON connection, two currents (with special wiring on screw terminals) and three line-to-line voltage
measurements.
System 3P.1 balanced load 3-phase (3-wire), one current and three line-to-line measurements.
3-phase (4-wire), one current and three line-to-neutral voltage measurements.
System 3P.2 balanced load 3-phase (2-wire), one current and one line-to-neutral (L1) voltage measurement
System 2P 2-phase (3-wire) Split-phase
System 1P 1-phase (2-wire) Single phase
Transformer ratio
VT (PT) 1.0…999.9 / 1000…9999
CT 1.0…999.9 / 1000…9999 (up to 50 kA in case of CT with 5 A secondary current)
Filter
Operating range Selectable from 0…100% of the input display scale
Filtering coefficient Selectable from 1…256
Filter action Measurements, analog signal retransmission, serial communication (fundamental variables: V, A, W, and their derived
ones)
Displaying
Number of variables Up to five variables per page. See Front Panel Features on page 11 . Seven different set of variables available according to
the application being selected. See Display Features on page 13
Backlight The backlight time is programmable from 0 (always on) to 255 minutes