Delta M42U User Manual

Appendix A-8: CA R21 Settings – Volt-Watt (VW)
a) Output Power Rating (W)
b) AC voltage range with function enabled (V)
c) Nominal AC voltage (V)
d) AC voltage accuracy (V)
e) Output Power accuracy (W)
f) Accuracy of time
g) Settling Time (s)
h) Adjustment range of the start of active power reduction (V)
i) Adjustment range of the stop of the curtailment function (V)
j) Maximum slope of active power reduction (%Prated/V)
k) Minimum slope of active power reduction (%Prated/V)
l) Range of adjustment of a delay before return to normal
operation (s)
m) Adjustment range of the rate of return to normal operation
(%Prated/Sec)
n) Use of hysteresis in the Volt-Watt function
o) Slope of the active power response to changes in voltage
p) Active power rate of return to normal operation
Prated
[Vmin, Vmax]
Vnom
MSAVac
MSAwatts
MSAt
ts
[Vstart_min,
Vstart_max]
[Vstop_min,
Vstop_max]
KPower-Volt_Max
KPower-Volt_Min
[treturn_min,
treturn_max]
[KPower_Rate_Min,
KPower_Rate_Max]
-
KPower_Volt
KPower_Rate
Alias
[249.3V, 304.7V]
277V
± 2.77V
10ms
10s
[277V, 318.5V]
[249.3V, 277V]
N/A
N/A
[10s, 900s]
0.33%/sec
N/A
N/A
0.33%/sec
M42U
46000VA
± 1000W
M36U
39600VA
± 900W
M28U
30800VA
± 700W
Appendix A: Rule 21
103

Delta M42U Specifications

General

Brand	Delta
Model	M42U
Category	Inverter
Language	English