Delta M60U

Figure 4-24: P(V) screens
When grid voltage rises up to a lock-in voltage(V lock-in) and inverter’s present
output power is greater than lock-in power(P lock-in), inverter will reduce the
output power and keep it at a certain value(P lock-out) until grid voltage drop
back to lock-out voltage(V lock-out) and passing a certain time(T recovery).
Power Limit
Power vs. Frequency
P(V)
►
Mode
P lock-in
P lock-out
V lock-in
►
OFF
20%
5%
305.0V
V lock-out
T recovery
►
300.0V
300s
EXIT
EXIT
ENT
4.3.8.3 P(V)
Inverter can feed in a fixed reactive power to grid. Users can set the power
factor(cosphi) in Constant cosphi page.
►
Constant cosphi
Cosphi (P)
Constant Q
Q(V)
Mode
cosphi
►
OFF
Ind 1.00
EXIT
ENT
Figure 4-25: Constant cosphi screens
4.3.8.4 Constant cosphi
79
Commissioning