B - technical specifications, Appendix b, Technical specifications – Rockwell Automation 1420 PowerMonitor 500 User Manual

Page 63: Appendix

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Rockwell Automation Publication 1420-UM001D-EN-P - September 2013

63

Appendix

B

Technical Specifications

Table 33 - Input Specifications

Attribute

Value

Rated inputs

System type: 1, 2, or 3-phase

Current type

Galvanic insulation by means of built-in CTs

Current range (by CT)

5 A nom (6 A max)

Voltage (by direct connection or VT/PT)

V1: 120/208V LL; V2: 400/690V LL

Accuracy (Display and RS-485)
(@25 °C ±5 °C, R.H.

60%, 48…62 Hz)

Nom current (In): see below,
Nom voltage (Un): see below

V1 model

In: 5 A, Imax: 6 A; Un: 40…144V LN (70…250V LL)

V2 model

In: 5 A, max current (Imax): 6 A; Un: 160…480V LN (277…830V LL)

Current all models

From 0.01…0.05 In: ±(1.0% of reading (RDG) + 2 digit (DGT)); From 0.05 In to Imax: ±(0.5% RDG +2 DGT)

Phase-neutral voltage

In the range Un: ±(0.5% RDG +1 DGT)

Phase-phase voltage

In the range Un: ±(1.0% RDG +1 DGT)

Frequency

±0.1 Hz (45…65 Hz)

Real and apparent power

0.01 In to 0.05 In, PF 1: ±(2% RDG +1 DGT); From 0.05 In to Imax PF 0.5L, PF1, PF 0.8C: ±(1.0% RDG+1 DGT)

Power factor (PF)

±[0.001+0.5% (1.000 - ‘PF RDG’)]

Reactive power

0.1 In to Imax, senf 0.5L/C: ±(2.0% RDG +1 DGT) 0.05 In to 0.1 In, senf 0.5L/C: ±(2.5% RDG +1 DGT); 0.05 In to Imax,
senf 1.0: ±(2.0% RDG+1 DGT) 0.02 In to 0.05 In, senf 1: ±(2.5% RDG+1 DGT)

Real energy

Class 1 according to EN62053-22, ANSI C12.20 Class B according to EN50470-3

Reactive energy

Class 2 according to EN62053-23, ANSI C12.1

Start up current

5 mA

Energy additional errors

According to EN62053-22, ANSI C12.20, Influence quantities Class B according to EN50470-3, EN62053-23, ANSI C12.1

Total harmonic distortion (THD)

±1% FS (FS: 100%) V2: Imin: 5 mA rms; Imax: 15 Ap; Umin: 30V rms; Umax: 585Vp V1: Imin: 5 mA rms; Imax: 15 Ap;
Umin: 30V rms; Umax: 585Vp

Temperature drift

200 ppm/°C

Sampling rate

3200 samples/s @ 50 Hz, 3840 samples/s @ 60 Hz

Measurements

See

List of Connectable Variables on page 69

Method

TRMS measurements of distorted wave forms

Coupling type

By means of CTs

Crest factor

3 (15 A max peak)

Current overloads

Continuous

6 A, @ 50 Hz

For 500 ms

120 A, @ 50 Hz

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