High-country-tek emc-1V Manual de usuario descargar pdf (Pagina 15)

Part No:- 021-00351 Rev 1.0 emc-1P & emc-1V e-Fan System Controller User Guide Page 15

e-Fan Cooling System Controllers

with J1939 Interface

Fan Reverse Switch Input (Momentary contact)

This is a momentary signal input and only required that the input be pulled to +5V or Supply Power

Supply for approx. 500mS to initiate the reverse sequence settings, this input is debounced in the module

software to avoid false triggers.

This input may normally be referenced to chassis ground

Fire Detect Input: (emc-1P only)

Signal input must be pulled to +5V or Supply Power by the fire event. This will turn OFF the Fans.

This is not latched and will return to normal operation when off. (0V)

Connect to PWR common 0V (GND) if not used.

Ignition Input

Ignition input must be pulled to +5V or Supply Power to enable operation.

This is not latched, emc-1 will not be enabled when off.

Power Ground Input, (0V)

This terminal is the Main Power Ground or Power Common (0V) input on the controller. To provide the

best possible noise resistance and current capability, this input should be taken directly to battery

Negative or the power supply 0V (GND) output using a large current capacity cable. DO NOT use a

connection to chassis or false operation may occur.

Alarm Output

This output can SOURCE up to 3 amps at supply voltage and can be used to connect to an audio device

or light indicator to show the systems alarm condition. This output can be set active High, or active Low.

Output is reverse polarity and short circuit protected.

Reverse Indicator Output

This output can SOURCE up to 3 amps at supply voltage and can be used to connect to an indicator or

alarm to show reverse status. This is a normally OFF, output will go to supply voltage when energized.

Output is reverse polarity and short circuit protected.

NOTE:

The Alarm and Reverse Outpu ts, will source a small amount of current when OFF. The

currentavailableat32voltswouldbe~500uAand~200uAat12Volts.Thissmallamountof

currentshouldbeconsideredwhendrivinghighimpedanceinputsorhighefficiencyLEDs.

Proportional Output; The function of this pin is dependent on the model in use.

emc-1P

This is a proportional Pulse Width Modulation (PWM) output that vary between 0 to 100% and can source

up to 100mA and is intended to drive the command input of a ‘Smart’ electric fan that requires a low level

PWM input for control. The PWM frequency is adjustable from 33 to 500Hz through the GUI. This output

is reverse polarity, short and open circuit protected.

emc-1V

This is a proportional 0 to 5 Volt DC output that is capable of driving up to 10mA (or loads up to 100Ω)

and is intended to drive the command input typically seen on VFD converters. This output is reverse

polarity, short and open circuit protected.

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