9-3
Commonly used PID control modes
1: Forward operation: PID operation enabled, motor speeds increases when feedback signal is smaller than
set-point (most fan and pump applications)
3: Reverse operation: PID operation enabled, motor slows down when feedback signal is smaller than set-point
(e.g. level control applications)
To set parameter 10-03:
- After power-up press the MODE key
- Select 10-03 using the arrow keys and up/down keys
- Press </ENTER key
- Set parameter 10-03 using the arrow keys and </ENTER key to save setting.
Important: To use the PID function parameter 00-05 (Main Frequency Source Selection) has to be set to 6 for
PID reference.
9.2 Connect Transducer Feedback Signal (10-01)
The PID function in the inverter
Depending on the type of feedback transducer used, the inverter can be setup for either 0-10V or a 4-20mA
feedback transducer.
Feedback Signal 4 – 20mA (10-01 = 2)
RA
RB
S1
S2
S3 S4
S5
10V
AGND
AVI
ACI
AO
COM /
+12V
Connect shield to
control ground terminal
+
-
ACI
Common, AGND
4 – 20mA
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