High Country Tek epc, Electronic Pump Controller - A Multi-Function SAE J1939 Compatible Module - Manual (Page 18)

023-00354-Rev1.6 evc/epc User Manual 18
Copyright © High Country Tek, Inc. – 2013
evc/epc Controller
With SAE J1939 Interface
Coil A/B Min Current (0 to 2.5Amps)

Determines the min current or duty cycle. Fine tune this value to balance machine safety and valve
responsiveness. Typical values for th is can be found in the manufacturer’s information.
Coil A/B Max Current (0 to 3Amps)
 When Current Feedback is “ON”, it determines the max output current. Typical values can be found in the valve
manufacturer’s information.
When Current Feedback is “OFF”, the Coil A/B Min Current setting does not apply and is grayed out. The Max
Current is used as an internal reference to declare a coil short condition when the output current is 0.5A higher
than the max current setting.
When Current Feedback is “OFF”, the output PWM duty cycle (0-100%) matches the percent of demand. The
current will change when supply voltage and/or coil temperature changes.
In this example, the output PWM duty cycle
(0-100%) matches the percent of demand.
The output current will change when supply
voltage and/or coil temperature changes.
The evc/epc does not declare an error
because the output current 1.16A is
not
0.5A higher than the max setting 0.7A.
In this example, the evc/epc declared an
error because the output current 1.16A is
0.5A higher than the max setting 0.63A.