4-226
Example:
-- When wakeup frequency< sleep frequency, inverter starts by the sleep frequency and sleeps depending on
sleep frequency.
-- When wakeup frequency> sleep frequency, inverter starts by the wakeup frequency and sleeps depending on
sleep frequency.
Parameter 10-00 and 10-01 cannot be set to the same source. If both parameters are set to the same source the
keypad will show a SE05 alarm.
10-27
PID Feedback Display Bias
Range
-99.99~99.99
10-28
PID Feedback Display Gain
Range
0.00~100.00
PID Feedback Display Scaling
The PID feedback signal can be scaled to represent actual engineering units. Use parameter 10-28 to set the
feedback signal gain for the feedback signal range maximum and parameter 10-27 to the feedback signal
minimum.
Example:
Feedback signal is a pressure transducer (0-10V or 4-20mA ) with a range of 1.0
– 20.0 PSI
4mA (0V) = 1.0 PSI, 20mA (10V) = 20.0 PSI.
Set parameter 10-27 to 1.0 minimum of transducer range (0%).
Set parameter 10-28 to 20.0 maximum of transducer range (100%).
Refer to the figure 4.4.84 for displaying the unit conversion.
Feedback
Signal
10V
( 20mA )
0V
( 4mA )
10-28
10-27
Display unit
Figure 4.4.84 Feedback signal scaling
