LSIS sv-ig5a, Руководство пользователя

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8-10
Group Display Parameter Name Setting Range Default
Uni
t
I/O
group I17~
I24 [Multi-function input terminal
P1-P8 define]
21 0 ~ 27 - -
Drive
group
rEF [PID reference] -
0~400
/0~100 0.00
/0.0 Hz
/%
Fbk [PID feedback] -
0~400
/0~100 0.00
/0.0 Hz
/%

In order to control the amount of following water, pressure and temperature, do PID
control to inverter output frequency.

Select H49 of function group 2 as a 1 (PID drive select). Then REF and FBK category
show. Set PID reference value in REF and real PID feedback amount is monitored at the
FBK

PID drive is classified as two which are Normal PID mode and Process PID mode. It can
be set in the H54 (PID mode select)

H50: Select the feedback type of PID controller.
H50 [PID Feedback
select]
0 Terminal I input (0 ~ 20[mA] )
1 Terminal V1 input (0 ~ 10[V])

H51: Set the percentage of output to error. If P Gain is set to 50%, 50% of the error value will
be output. Higher value can reach the target control value faster but it may cause oscillation.

H52: Set the time to output the accumulated error value. Set the time required to output 100%
when the error value is 100%. If H52 - [Integral time for PID controller (I gain)] is set to 1 sec
and the error becomes 100%, 100% will be output in 1 sec. Adjusting the value may reduce the
nominal error. If the value is reduced, response will be faster but setting too low may lead to
controller oscillation.

H53: Set the output value to the variation of the error. The error is detected by 0.01 sec in SV-
iG5A. If differential time is set to 0.01 sec and the percentage variation of error per 1 sec is
100%, 1% per 10msec is output.

H54: PID Feed Forward Gain. Set the gain to add the target value to the PID controller output.

H55, H56: It limits the output of the PID controller.

H57: selects PID Reference

H58: PID Reference and PID feedback
‟s units are classified as two which is [Hz] and [%].
H58=0: [Hz], H58=1: [%]

I17 ~ I24: To exchange PID to normal operation, set one of P1-P8 terminal to 21 and turn ON.

rPM: Calculates the feedback from H50 into Motor frequency and displays it.

rEF: indicates PID controller
‟s command value.

Fbk: converts feedback amount set in H50 to motor frequency.
For Service Call 800-848-2504
For Service Call 800-848-2504