WEG CFW700, Programming And Troubleshooting Manual

Page: 69 / 223

9
Scalar Control (V/f)
CFW700 | 9-11
DC Link Voltage (P0004)
F022-
Overvoltage
Time
DC Link
Regulation
Output
Speed
Time
P0151
Nominal U
d
Voltage U
d
(P0004)
Figure 9.12: Example of the DC link voltage limitation working with the Ramp Acceleration function
P0150 – V/f DC Regulation Type
Adjustable
Range:
0 = Ramp Hold
1 = Ramp Acceleration Factory
Setting:
0
Properties: V/f, VVW and cfg
Access groups
via HMI:
Description:
It selects the DC link voltage limitation function type in the V/f mode.
P0151 – V/f DC Regulation Level
Adjustable
Range:
339 to 400 V
585 to 800 V
585 to 800 V
585 to 800 V
585 to 800 V Factory
Setting:
400 V (P0296 = 0)
800 V (P0296 = 1)
800 V (P0296 = 2)
800 V (P0296 = 3)
800 V (P0296 = 4)
Properties: V/f and VVW
Access groups
via HMI:
Description:
It is the actuation level of the DC link voltage limitation function for the V/f mode.
Setting of P0151 value:
1. The P0151 factory setting leaves inactive the DC link voltage limitation function for the V/f mode. In order to
activate it, one must reduce the value of P0151 as suggested in the table 9.2 .
Table 9.2: Recommended actuation levels for the DC link regulation
Inverter
V
nom
220/230 V 380 V 400/415 V 440/460 V 480 V
P0296 0 1 2 3 4
P0151 375 V 618 V 675 V 748 V 780 V