High Country Tek emc-3 - Manual (Page 3)

Page 3 of 39
emc-3 Controller Module
User Guide – Rev A
Introduction
The emc-3 application allows for independent control of up to three fan banks.
Each bank is controlled by any three of the seven Command Inputs.
The emc-3 is designed to drive PWM controlled fans with up to 3 Amps/Channel
by providing a High Side sourcing 100Hz PWM signal.
A normally low Alarm output notifies the user to check the fan system.
A normally low Reverse output notifies the user that the fans are in reverse.
The emc-3 has the following inputs:
 3 thermistor inputs
 8 configurable discreet inputs for fan diagnostics
 1 discreet Ignition/Enable input
 1 discreet Reverse input
 1 configurable Fire Input
The emc-3 can be configured either by using the HCT Intella® PLM, or over the
SAE J1939 CAN Bus using configuration messages.
A Status message is available that will transmit all the I/O status as well as
thermistor temperatures and various program states on the SAE J1939 CAN
Bus.