Chapter 4 Description of Parameters | VFD-VJ 
 
4-5
 
Pr.    Name of Parameter  Setting 
Factory 
Setting 
VF 
FOCPG 
FOCPM 
 
00-29 
Ramp up rate of 
pressure  
command 
0~1000ms 
0 
○  ○  ○ 
 
00-30 
Ramp down rate of 
pressure command 
0~1000ms 100 ○  ○  ○ 
 
00-31 
Ramp up rate of flow   
command 
0~1000 ms  80  ○  ○  ○ 
 
00-32 
Ramp down rate of flow   
command 
0~1000 ms 
80 
○  ○  ○ 
 
00-33  Valve opening delay time 0~200 ms 
0 
○  ○  ○ 
 00-34 
Output switching function 
0.0~100,0% (100.0% is the maximum pressure 
feedback) 
50.0 
○  ○  ○ 
 
00-35 
Over-pressure detection   
level 
0~400Bar 
230 
○  ○  ○ 
 
00-36 
Detection of 
disconnection of 
pressure feedback   
0 : No function 
1: Enable (only for the pressure feedback 
output signal within 1~5V or 4~20mA) 
0  ○  ○  ○ 
 
00-37  Differential gain  0.0~100.0 %  0.0  ○  ○  ○ 
 
00-38 
Pressure/flow control   
function selection 
Bit 0: 0: Switch the PI Gain according to the 
pressure feedback level and use 
single speed bandwidth. 
 
1: Switch the PI Gain and speed 
bandwidth according to the   
multi-function input terminal 
 
Bit 1: 0: No pressure/flow control switch 
 
1: Switch between the pressure and 
flow control 
 
Bit 2: 0: Use the old pressure overshoot 
suppression 
 
1: Use the new pressure overshoot 
suppression  
 
Bit 3: 0: Switch the PI Gain and single speed 
bandwidth according to the pressure 
feedback level   
 
1: Switch the PI Gain and speed 
bandwidth according to the pressure 
command. 
0  ○  ○  ○ 
 
00-39 
Integral time    Pressure 
overshoot 1 
0.00~500.00 sec.  0.20  ○  ○  ○ 
 
00-40  Differential gain 2  0.0~100.0%  0.0       
 
00-41  Differential gain 3  0.0~100.0%  0.0       
 
00-42  Pressure overshoot level 0~100%  2  ○  ○  ○