WEG CFW501 V1.8X, Programming Manual, Page: 99 / 192

Functions Common to all the Control Modes
CFW501 | 11-5
11
P0151 – Actuation Level of the DC Link Voltage Regulation
Adjustable
Range:
339 to 1200 V Factory
Setting:
400 V
(P0296 = 0)
800 V
(P0296 = 1)
1000 V
(P0296 = 2)
Properties: V/f, V VW
Access groups
via HMI:
MOTOR
Description:
Voltage level to activate the DC Link Voltage regulation.
P0152 – Gain Proportional to the DC Link Voltage Controller
Adjustable
Range:
0.00 to 9.99
Factory
Setting:
1.50
Properties: V/f, VVW
Access groups
via HMI:
MOTOR
Description:
Gain proportional to the DC link voltage controller.
When the option of P0150 is 1 or 3, the value of P0152 is multiplied by the “error” of the DC link voltage, seeing
that the error results from the difference between the actual DC link voltage (P0004) and the actuation level
of the DC link voltage regulation (P0151). The result is added directly to the inverter output speed in rpm. This
resource is normally used to prevent overvoltage in applications with eccentric loads.
Figure 11.2: Block diagram DC link voltage limitation – Ramp Hold (P0152 = 0 or P0152 = 2) on page 11-5 to
Figure 11.5: Example graph of the DC ling voltage limitation – Accelerate Ramp (P0152 = 1 or P0152 = 3) on
page 11-7
show the block diagrams and example graphs.
Ramp
Reference
Output speed
Error
≥ 0
+
-
Hold
P0001
P0004
P0151
P0002
P0100-P0104
Figure 11.2: Block diagram DC link voltage limitation – Ramp Hold (P0152 = 0 or P0152 = 2)