9-4
Feedback Signal 0
– 10V (10-01 = 1)
24V
AI1
AGND
0
– 10 V
+
-
Analog
Input AI1
Common/0V, GND
Control Terminals /
User Terminals
R1A
R1B
10V
AO
R2B
R2B
COM
S1
S3
S5
SF
AI2
R1C
S2
S4
S6
SG
9.3 Engineering Units
PID Feedback Display Scaling
The PID feedback signal can be scaled to represent actual engineering units. Use parameter 10-21 to set the
feedback signal gain for the feedback signal range maximum and parameter 10-22 to the feedback signal
minimum.
Example:
Feedback signal is a pressure transducer (0-10V/0-20mA) with a range of 0
– 200 PSI
0V/0mA = 0 PSI, 10V/20mA = 200 PSI.
Set parameter 10-21 to 200 maximum of transducer range (100%).
Set parameter 10-22 to 0 minimum of transducer range (0%).
Feedback
10V
( 20mA )
0V
( 0mA )
10-21
10-22
Display unit
