Pid Control Parameters; Input Terminal For Pid Feedback; Pid Control Detection Signal Reference; Pid Feedback Control Method - Delta Electronics AC Motor Drive VFD-G User Manual

Vfd-g series specific ac motor drives for plastic molding and air compressors machinery
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Chapter 4 Parameters|
Group 10: PID Control Parameters
10 - 00

Input Terminal for PID Feedback

Settings
This parameter is to set the source of PID control feedback signal. The source could be AI1,
AI2 or external reference that defined by 04-20.
When this parameter is set to 00, PID feedback control function is disabled.
If this parameter isn't set to 00, AC drive will automatically start-up PID feedback control.
Output frequency is calculated by master frequency and PID feedback signal.
+
Target
value
02-00
Detection
Signal
10-01
10 - 01

PID Control Detection Signal Reference

Settings
Please refer to 04-05 to 04-12 if this parameter is set to PID feedback control.
10 - 02

PID Feedback Control Method

Settings
This parameter could set the calculation method of deviation signal during PID feedback
control circuit.
When this parameter is set to 00: when negative feedback control, the deviation equation is
deviation = target value - detection signal. When increasing output frequency will increase
detection value, this setting should be chose.
4-86
00: Disabled
01: Input via AI1
02: Input via AI2
03: Input via External Reference
Difference
Range
P
Position/
Negative
10-03
Feedback
10-02
1.0-6550.0
00: Normal (Err=SP-FB)
01: Inverse (Err=FB-SP)
I
Upper
Bound for
10-04
Integral
Control
10-06
D
10-05
Revision July 2008, EG03, SW V1.06
Factory Setting: 00
+
Primary
+
Low Pass
FilterTime
10-07
+
Upper/Lower
bound Freq.
01-07/01-08
Frequency
Command
Unit: 0.1
Factory Setting: 1000.0
Factory Setting: 00

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