Larsen & Toubro C*2000 Series, Руководство пользователя

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Chapter 8 Application
8-10
Cx2000 AC Drive
8.7 PID control
Group Code Item Set Value Setting Range
Initial
Unit
Function
group 2
H49 PID Operation selection 1
0 ~ 1
0
-
H50 PID Feedback selection - 0 ~ 2 0 -
H51 P gain for PID controller - 0.0~ 999.9 300.0 %
H52
Integral time for PID controller
(I gain)
- 0.1~ 32.0 1.0 sec
H53
Differential time for PID
controller (D gain)
- 0.0~30.0 0 sec
H54 PID mode select - 0 ~ 1 0 -
H55 PID output frequency high limit - 0.1 ~ 400.0 60.0 Hz
H56 PID output frequency low limit - 0.10 ~ 400.00 0.50 Hz
H57 PID reference select - 0 ~ 4 0 -
H58 PID unit select - 0 ~ 1 0 -
H61 Sleep delay time - 0.0~2000.0 60.0 sec
H62 Sleep frequency - 0.00 ~ 400.00 0.00 Hz
H63 Wake-up level - 0.0 ~ 100.0 35.0 %
I/O group
I17
Multi-function input terminal
selection
21 0 ~ 27 - -
Drive
group
rEF PID reference -
0.00 ~ 400.00
/ 0.0 ~ 100.0 0.00
/ 0.0 Hz
/ %
FbK PID feedback -
0.00~ 400.00
/ 0.0 ~ 100.0 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 AI(V input) (0 ~ 10[V])
2 Communication RS-485