Delta HES Series Instructions For Use Manual page 67

Speed bandwidth
Control mode
Settings
 Set the speed response. The larger value indicates the faster response.

Pressure feedback filtering time PO

Pressure Command Filter Time PI

Pressure Command Filter Time QI
Control mode VF
Settings
 Noises may reside in the analog input signals of the control terminals PO, PI, and QI. The noise
may affect the control stability. Use an input filter to eliminate such noise.
 If the time constant is too large, a stable control is obtained with poorer control response. If it is
too small, a fast response is obtained with unstable control. If the optimal setting is not known,
adjust it properly according to the instability or response delay.
 Percentage of the pressure command value (MAX)
VF
Control mode
Settings
 Percentage of the pressure command value (Mid)
VF
Control mode
Settings
 Percentage of the pressure command value (Min)
VF
Control mode
Settings
 When setting up Pr00-07<Max. value for the pressure command> and Pr00-08<Max. pressure
feedback value>, Pr00-14 and Pr00-15 will also be modified. However when the pressure
command is bigger than the pressure feedback, Pr00-07 cannot be set up.
 Pr00-07 can be set up while the motor drive is running, but Pr00-07 has to be smaller than
Pr00-08.
 To set these parameters, it is necessary to set Parameter 00-09 as 1
Parameter 00-04 = 12 for PI input voltage
Send the maximum pressure command through the controller and then check the
multi-function display page to enter this value into 00-14
Send a half pressure command through the controller and then check the multi-function display
page to enter this value into 00-15
Send the minimum pressure command through the controller and then check the multi-function
display page to enter this value into 00-16
FOCPG FOCPM
0~40Hz
FOCPG FOCPM
0.000~1.000 seconds
FOCPG FOCPM
0.0～100.0%
FOCPG FOCPM
0.0～100.0%
FOCPG FOCPM
0.0～100.0%
Chapter 4 Parameter Functions
4-15
HES Series
Factory default: 20
Factory default: 0.000
Factory default: 56.0
Factory default: 28.0
Factory default: 0.0