dooch Q-Drive NQ-0075-S, User Manual, Page: 56 / 80

[CHAPTER 6 FUNCTION TABLE & DESCRIPTION]
Pr-61 PID Type Setup on Multi-Drive Control Mode
ㆍ
This is to improve energy efficiency on multiple pump operation and selectable for the user.
Master control means acceleration/deceleration operation upon PID by Master for only one drive.
Centralized control is a method that all of drivers participating into operation are allocated with
target value for the output frequency by one PID controller of Master.
This function has an advantage to prevent overload on the drive.
Setup Data Functional Description
Master Control 0 (Factory Setting)
Related Function
1
Centralized
Control
Pr-64
Output Ratio on Starting
Increase of All PID
Pr-64 Output Ratio on Starting Increase of AllPID(Preparing)
ㆍ
It is an output ratio to start the next drive by applying it centralized control method for multiple
pump operation. That is, if the output ratio of drive in operation is higher than a specified value,
the next drive to be linked starts to be operated.
Factory Setting Input Range
70 ~ 100[%] 100[%]
Pr-70 High Pressure Alarm Level
ㆍ
It sets standard pressure value to issue the high pressure alarm.
※
When setting the setup pressure, it is automatically set to setup pr 2bar.
Factory Setting Input Range Related Function
20.0[bar] 0.0~20.0[bar] Pr-72 High Pressure Trip Time
Pr-71 Low Pressure Alarm Level
ㆍ
It sets standard pressure value to issue the low pressure alarm.
Factory Setting Input Range Related Function
0.5[bar] 0.0~10.0[bar] Pr-73 Low Pressure Trip Time
6-12 |
DOOCHPUMP
Pr-55 Stand-by Pump Waiting Time on Multi-Drive Control Mode
ㆍ
This is to give some delay to stand-by pump. If the stand-by pump starts operation before
the main drive outputs maximum frequency then the pressure may increase suddenly.
Factory Setting Input Range
0 ~ 100[sec] 5[sec]