18
User Manual
Zenex Pro
Parameter Description
Settings
Default Value
DERIVATIVE TIME
(For ‘PID’ Control)
It is desired that the controller should respond to any dynamic
changes in the process conditions (like variations in load, power
supply fluctuations, etc.) fast enough so as retain the process
value near the setpoint. The derivative time determines how
strong the output power will change in response to the rate of
change of measured PV.
The Derivative Time value is automatically calculated by
controller’s Self-Tune feature and seldom requires any manual
adjustments.
0 to 250 Seconds
(Default : 25)
