Veris Industries E50 Series Installation Manual page 21

Installation Guide
Power Monitoring
E50B1, E50C2, E50C3
Modbus Point Map (cont.)
R/W NV Format
• • 138 R
• • 139 R
• • 140 R
• • 141 R
• • 142 R/W NV
• • 143 R/W NV
• • 144 R/W NV
• • 145 R NV
ZL0103-0C Page 21 of 26
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Units Scale Range
-4 0.0001
SInt
-3 0.001
SInt
-2 0.01
SInt
-1 0.1
0 1.0
1 10.0
2 100.0
SInt
3 1000.0
4 10000.0
UInt % 1-99
UInt % 1-99
10000,
1000,
UInt Wh
100,
10
500,
250,
100,
UInt ms
50,
25,
10
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Scale Factor I (Current)
Scale Factor V (Voltage)
Scale Factor W (Power)
Scale Factor E (Energy)
Phase Loss Voltage Threshold in percent of system voltage (register
134). Default is 10 (%). Any phase (as configured in register 130)
that drops below this threshold triggers a Phase Loss alert - i.e.
if the System voltage is set to 480 V L-L, the L-N voltage for each
phase should be 277 V. When the threshold is set to 10%, if any
phase drops more than 10% below 277 V, (less than 249 V), or
if any L-L voltage drops more than 10% below 480 V (less than
432 V) the corresponding phase loss alarm bit in register 146 will
be true.
Phase Loss Imbalance Threshold in Percent. Default is 25% phase
to phase difference. For a 3-phase Y (3 + N) system type (40 in
register 130), both Line to Neutral and Line to Line voltages are
tested. In a 3-phase Δ System type (31 in register 130), only Line
to Line voltages are examined. In a single split-phase (2 + N)
system type (12 in register 130), just the line to neutral voltage
are compared.
Wh (& VARh, if equipped with
FDS) Energy per Pulse Output
Contact Closure. If the meter
cannot find a pulse duration
that will keep up with the max.
system power (register 135), it
will reject the new value. Try a
kWh Pulse Contacts
larger value.
Pulse Contact Closure Duration
Note: The kWh pulse contact can keep up with a maximum power (Watts) of
in msec. Read-only. Set to the
1800000 x Wh pulse weight ÷ contact closure duration (in mses)
slowest duration that will keep
up with the theoretical max.
system power (register 135).
The open time ≥ the closure
time, so the max. pulse rate
(pulses per sec) is the inverse of
double the pulse time.
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Description
Scale Factors
Note: These registers contain a signed
integer, which scales the corresponding
integer registers. Floating point registers
are not scaled. Scaling is recalculated
when the meter configuration is changed.
Phase Loss Output
Note: The phases tested are determined by
the System Type.
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