Delta ME300 Series User Manual

Chapter 12 Description of Parameter Settings
ME300
12.1-12-1
12 Function Parameters
In this parameter group, ASR stands for Adjust Speed Regulator.
 You can set this parameter during operation.

12-00
Set Point Deviation Level
D
efault: 0
Settings 0–100%

12-01
Detection Time of Set Point Deviation Level
D
efault: 10
Settings 1–9999 sec.
 When the deviation is less than Pr.12-00 (in the range of PID set point to Pr.12.00 x PID set point)
for a time exceeding the setting of Pr.12-01, the AC motor drive decelerates to stop to be constant
pressure status (this deceleration time is the setting for Pr.01-15). The system is ready when the
deviation is within the range of PID set point to Pr.12-00 x PID set point during deceleration.
Example:
If the set point of constant pressure control of a pump is 4 kg, Pr.12-00 is set to 5%, and Pr.12-01
is set to 15 seconds, then the deviation is 0.2 kg (4 kg × 5%=0.2 kg). It means when the feedback
value is higher than 3.8 kg for a time exceeding 15 seconds, the AC motor drive decelerates to
stop (this deceleration time acts according to Pr.01-12). When the feedback value is less than 3.8
kg, the AC motor drive starts to run.

12-02
Offset Level of Liquid Leakage
D
efault: 0
Settings 0–50%
 In the constant pressure status, when the liquid leakage is higher than Pr.12-02 x PID set point,
the AC motor drive starts to run.
 It is used to prevent the drive from frequent run/stop operation due to liquid leakage.

12-03
Liquid Leakage Change Detection
Default: 0
Settings 0: Disable
0–100%

12-04
Time Setting for Liquid Leakage Change
D
efault: 0.5
Settings 0: Disable
0.1–10.0 sec.

Delta ME300 Series Specifications

General

Brand	Delta
Model	ME300 Series
Category	DC Drives
Language	English