Measurement Table For Limit Thresholds And Analog Outputs - LOVATO ELECTRIC DCRG8 Manual Operativo

MEASUREMENT TABLE FOR LIMIT THRESHOLDS AND ANALOG OUTPUTS

– The following table lists all measurements that can be associated with the limit thresholds (menu M20) and analog outputs (menu M23).
– The codes selected in the parameters P20.n.01 and P23.n.02 correspond to the measurements below.
– To facilitate the comparison with three-phase measurements, some 'virtual' values are provided that are the highest measurements across the three phases.
These measurements are identified by the presence of the word MAX in the measurement code.
Example: If you want to apply a maximum limit of 10% on the 5th harmonic current content of the system when you have a three-phase current, set LIM1 to
H. I MAX, with channel no. set to 5. The device will consider the highest of the harmonic content of the 5th order among the three currents I L1, I L2 and I L3.
Settings:
P20.1.01 = H. I MAX (highest current harmonic among 3 phases)
P20.1.02 = 5 (5th harmonic)
P20.1.03 = max (compare with max threshold)
P.20.1.04 = 10 (threshold = 10%)
....
NO. MEASUREMENT CODE DESCRIPTION
00 OFF Measurement disabled
01 V L1-N Phase voltage L1-N
02 V L2-N Phase voltage L2-N
03 V L3-N Phase voltage L3-N
04 I L1 Phase current L1
05 I L2 Phase current L2
06 I L3 Phase current L3
07 V L1-L2 Phase-to-phase voltage L1-L2
08 V L2-L3 Phase-to-phase voltage L2-L3
09 V L3-L1 Phase-to-phase voltage L3-L1
10 W L1 Active power L1
11 W L2 Active power L2
12 W L3 Active power L3
13 var L1 Reactive power L1
14 var L2 Reactive power L2
15 var L3 Reactive power L3
16 VA L1 Apparent power L1
17 VA L2 Apparent power L2
18 VA L3 Apparent power L3
19 Hz Frequency
20 Cosphi L1 Cosphi L1
21 Sinphi L1 Sinephi L1
22 Cosphi L2 Cosphi L2
23 Sinphi L2 Sinephi L2
24 Cosphi L3 Cosphi L3
25 Sinphi L3 Sinephi L3
26 W TOT Total active power
27 var TOT Total reactive power
28 VA TOT Total apparent power
29 Cosphi TOT Cosphi (balanced three-phase system)
30 Sinphi TOT Sinphi (balanced three-phase system)
31 THD VLN MAX THD phase voltage (maximum among phases)
32 THD I MAX THD phase current (maximum among phases)
33 THD VLL MAX THD phase-phase voltage (maximum among phases)
34 H. VLN MAX Phase voltage harmonic content of order n (maximum among phases)
35 H. I MAX Phase current harmonic content of order n (maximum among phases)
36 H. VLL MAX Phase-phase voltage harmonic content of order n (maximum among phases)
37 Cosphi MAX Cosphi (maximum among phases)
38 Sinphi MAX Sinphi (maximum among phases)
39 VLN MAX Phase voltage (maximum among phases)
40 I MAX Current (maximum among phases)
41 VLL MAX Phase-phase voltage (maximum among phases)
42 VLN MIN Phase voltage (minimum among phases)
43 VLL MIN Phase-phase voltage (minimum among phases)
44 Cosphi MIN Cosphi (minimum among phases)
45 AIN Measurement from analog inputs
46 CNT Programmable counter
G
B
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