Delta Electronics AC Motor Drive VFD-G, User Manual

Page: 137 / 183

Chapter 4 Parameters
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4-86 Revision July 2008, EG03, SW V1.06
Group 10: PID Control Parameters
10 - 00 Input Terminal for PID Feedback
Factory Setting: 00
Settings 00: Disabled
01: Input via AI1
02: Input via AI2
03: Input via External Reference
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.
P
10-03
I
10-04
10-01
+
+
+
+
Target
value
02-00
Detection
Signal
10-02
Position/
Negative
Feedback
Difference
Range
D
10-05
10-06
Upper
Bound for
Integral
Control
10-07
Primary
Low Pass
FilterTime
01-07/01-08
Upper/Lower
bound Freq.
Frequency
Command
10 - 01 PID Control Detection Signal Reference Unit: 0.1
Settings 1.0-6550.0 Factory Setting: 1000.0
Please refer to 04-05 to 04-12 if this parameter is set to PID feedback control.
10 - 02 PID Feedback Control Method
Factory Setting: 00
Settings 00: Normal (Err=SP-FB)
01: Inverse (Err=FB-SP)
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.