High Country Tek emc-1V - Manual (Page 31)

Part No:- 021-00351 Rev 1.0 emc-1P & emc-1V e-Fan System Controller User Guide Page 31
e-Fan Cooling System Controllers
with J1939 Interface
If the e-Fan Operation is Erratic:
Electrical interference on the control lines can cause erratic behavior if it is strong enough. Observe the
control inputs on the PC. If noise greater than a few percent is noticed on an unchanging PULSE IN or
COMMAND IN input, or if the digital inputs are toggling, try changing the routing of the control wires to
see if the problem changes.
Power supply interference or brown outs can also cause erratic behavior. Observe the power supply on
the graph on the PC. If large dips are noticed, test for a poor supply by running the card off its own fully
charged battery.
Further Information:
Visit the HCT website (
www.hctcontrols.com) for additional documentation and assistance.