Delta VFD220VL43C-J User Manual

Chapter 4 Description of Parameters | VFD-VJ
4-28
Pressure
command given
to controller
Pressure
command after
driver processing
00-29 00-30
Time

Ramp up rate of flow command

Ramp down rate of flow command
Control mode
VF FOCPG FOCPM
Factory setting: 80
Settings 0~1000ms
 Ramp the flow value for the flow command to reduce the vibration of the machine.
 Set the time required for ramping the flow from 0 ~the maximum flow (Pr.01-02).
00-3
1
00-3
2
Time
Flow command
given to
controller
Flow command
after driver
processing

Valve opening delay time
Control mode
VF FOCPG FOCPM
Factory setting: 0
Settings 0 – 200ms
 When both the pressure command and flow command activate the machine to start from idle, the flow starts
to output. However, due to the slower response of the valve in the hydraulic circuit, the sudden surge of the
pressure may occur. The pressure may recover to normal until the valve is fully opened.
To avoid the
aforementioned effect, set this parameter to increase time for the flow output delay.
Parameter 00-33
Pressure
Command
Flow
Command
Before pressure
feedback adjustment
After pressure
feedback adjustment
Before flow feedback
adjustment
After flow feedback
adjustment

Output switching function
Control mode
VF FOCPG FOCPM
Factory setting: 50.0
Settings 0.0 ~ 100.0%

Delta VFD220VL43C-J Specifications

General

Brand	Delta
Model	VFD220VL43C-J
Category	Servo Drives
Language	English