High Country Tek emc-3 - Manual (Page 11)

Page 11 of 39
emc-3 Controller Module
User Guide – Rev A
Manual Control
To manually control the Fan Banks, set “Manual Control Enable” to a number
greater than 0. Then do any one of the following;
1. Cycle power,
2. Cycle the Ignition Switch or
3. Reduce the engine RPM to less than the “Minimum Engine RPM” set point
in the EE-Memory.
Once the emc-3 has entered Manual Mode, each Banks fan speed is determined
by the “Bank n Manual DYCY” set points in the EE-Memory.
Valid settings are 0% to 100%
Auto dB Test Mode ( field noise measurement )
The Auto dB Test Mode is designed to allow users to test the noise level of the
fan banks without having to control the emc-3 from the PLM or the CAN Bus.
When the Auto dB Test Mode is activated, the Fan Banks will be set to the value
entered in the EE-Memory location “Auto dB Test Percent” for the duration
determined by the “Auto dB Test Time” set point.
To enter the Auto dB Test Mode, set the Reverse Switch to “On” and hold it, then
Cycle Power to the emc-3. When the Status LED on the emc-3 module begins to
blink (Red), release the Reverse Switch. When the test has timed out, the emc-3
resumes normal operation automatically.
Default values are;
Auto dB Test Time – 30 Seconds
Auto dB Test Percent – 70% of maximum fan speed