INVT CHE100-0R7G-S2 User Manual

Detailed Function Description
50
Figure 6.7 PI parameter diagram.
The system's dynamic response can be faster if the proportion gain K
p
is increased;
However, if K
p
is too large, the system tends to oscillate.
The system dynamic response can be faster if the integral time K
i
is decreased;
However, if K
i
is too small, the system becomes overshoot and tends to oscillate.
P3.00 and P3.01 are corresponding to K
p
and K
i
at low frequency, while P3.03 and P3.04
are corresponding to K
p
and K
i
at high frequency. Please adjust these parameters
according to actual situation. The adjustment procedure is as follow:
 Increase the proportional gain (K
p
) as far as possible without creating oscillation.
 Reduce the integral time (K
i
) as far as possible without creating oscillation.
For more details about fine adjustment, please refer to description of P9 group.
Function
Code
Name Description
Setting
Range
Factory
Setting
P3.06
Slip compensation rate
of VC
50.0~200.0% 50.0~200.0 100%
The parameter is used to adjust the slip frequency of vector control and improve the
precision of speed control. Properly adjusting this parameter can effectively restrain the
static speed bias.
Function
Code
Name Description Setting Range
Factory
Setting
P3.07 Torque limit 0.0~200.0% 0.0~200.0 150.0%
This parameter is used to limit the torque current output by speed regulator. Torque limit
value 0.0-200% is the inverter's rated current percentage.
6.5 P4 Group-- V/F Control
Function
Code
Name Description
Setting
Range
Factory
Setting
P4.00
V/F curve
selection
0:Linear curve
1: Torque_stepdown curve
(2.0 order)
0~1 0
0: Linear curve. It is applicable for normal constant torque load.
1: Torque_stepdown curve. It is applicable for variable torque load, such as blower, pump
and so on. Please refer to following figure.

INVT CHE100-0R7G-S2 Specifications

General

Brand	INVT
Model	CHE100-0R7G-S2
Category	DC Drives
Language	English