High Country Tek epc, Electronic Pump Controller - A Multi-Function SAE J1939 Compatible Module - Manual (Page 38)

023-00354-Rev1.6 evc/epc User Manual 38
Copyright © High Country Tek, Inc. – 2013
evc/epc Controller
With SAE J1939 Interface
When the measured rpm increases to above 1900rpm, the evc/epc will reduce the current to maintain 1900rpm
until it reaches 0.
The closed loop control is a dynamic process. The evc/epc constantly changes the current to maintain the
reference rpm.
If the overshoot of the speed is big, the changing rate of the current is fast.
If the overshoot of the speed is small, the changing rate of the current is slow.
The same working principle applies when different signals are used as the reference and the feedback.