EKO INSTRUMENTS CO., LTD. Ventilation Unit MV-01 Instruction Manual Ver. 4
Pg. 12
2. Wiring
To extend the cable lifetime, place the cable in a cable conduit and make sure that the cables are not
exposed to direct sun light or rain/wind. Fasten the cable does not swing or move by wind blowing. Excess
length of cable should be cut.
1)
Make sure the cable connector and the main unit chassis connector are in right position before inserting.
After inserting the cable connector properly, rotate the coupling nut to fix the connector. Do not use
excessive force as the connector will break.
2)
Cable wiring
The cable contains following five color wires:
2-1. Power Supply (Fan)
Apply a power supply with a rated specification (DC 12V
±
10%, 100mA, 1.9W). Note the input
voltage can drop when longer cable are used. Make sure the polarity is correct; otherwise, the fan
will be damaged(Voltage drop in AWG22 cable: -0.17V/10m)
2-2. Power Supply (Heater)
Apply a power supply with a rated specification (DC 12 V ± 10%, 580 mA, 7 W).
When using a cable longer than the standard length, the input voltage may fall below the rating
due to the voltage drop, so increase the power supply voltage within the rated input range (voltage
drop with AWG22 cable: -0.17 V / 10 m)
An overcurrent protection device is incorporated to prevent the generation of heat, burns and fire
when a voltage exceeding the specified range is applied to the heater. Make sure that the input
voltage is rated DC12 V ± 10% before using.
2-3. Ventilator Tachometer Signal
See [5-3. Ventilator Tachometer] for details.
No.
Wire Color
Connect to
1.
Brown
Fan Power Supply Input (+)
2.
White
Fan Power Supply Input (-)
3.
Blue
Fan Rotation Signal Output (Tacho)
4.
Black
Heater Power Supply Input (no polarity)
5.
Gray
Heater Power Supply Input (no polarity)
