Per Unit Of System Inertia - Delta C2000 series User Manual

Chapter 12 Description of Parameter Settings|C2000 Series
PI
11-06
11-07
11-08
11-09
11-10
5Hz
11-11
0Hz
PI ad justment-ma nual gain
Bit 7=0: frequency is saved before power turns off. When power turns on again, the display
frequency will be the memorized frequency.
Bit 7=1: frequency is not saved before power turns off. When power turns ON again, the display
frequency will be 0.00Hz.
Bit 8=0: maximum speed for point-to-point position control is control by the setting of Pr.11-43.
Bit 8=1: maximum speed for point-to-point position control is control by the multi-step speed
setting of the external terminal device. When multi-step speed of the external device is set to 0,
the maximum operation speed will bet the setting of Pr.11-43.

Per Unit of System Inertia

Settings
To get the system inertia from Pr.11-01, user needs to set Pr.11-00 to bit1=1 and execute
continuous forward/reverse running.
Unit of induction motor system inertia is 0.001kg-m^2:
Power
1HP
2HP
3HP
5HP
7.5HP
10HP
15HP
The base value for induction motor system inertia is set by Pr.05-38 and the unit is in 0.001kg-m^2.
ASR1/ASR2 Switch Frequency
Settings 5.00~600.00Hz
ASR1 Low-speed Bandwidth
Settings 1~40Hz (IM)/ 1~100Hz (PM)
Pr.11-05
us e to adjust the
stren gth o f ze ro -
se rvo lo ck
5Hz
Hz
11-02
1~65535（256=1PU）
Setting Power
2.3 20HP
4.3 25HP
8.3 30HP
14.8 40HP
26.0 50HP
35.8 60HP
74.3 75HP
PI
11-04
11-05
5Hz
0Hz
PI ad justment-auto gai n
Setting
95.3
142.8
176.5
202.5
355.5
410.8
494.8
12-160
1. Pr. 11-01 valu e
2. set Pr.11 -0 0 to bit 0=1
5Hz
11-02
Factory Setting: 400
Power Setting
100HP 1056.5
125HP 1275.3
150HP 1900.0
175HP 2150.0
215HP 2800.0
300HP 3550.0
Factory Setting: 7.00
Factory Setting: 10
Hz