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8.1 Overview
This chapter contains the following information:
Take electrical hazards preventive measures during
system maintenance and repair.
8.2 Safety Precautions
NOTE
Before carry out any maintenance or repair
work, touch the metal parts of the unit to
dissipate static electricity and protect the PCB.
8.2.1 Prevent electrical hazards
When maintaining and repairing the inverter module
1. Do not open the cover of the electrical component box
within 5 minutes after the power is switched off.
2. Verify that the power supply is switched off before you
use the measuring instrument to measure the voltage
between the main capacitor and the main terminal
ensure that the capacitor voltage in the main circuit is
less than 36 VDC. the position of main terminal have be
shown in the Wiring nameplate(The port of CN38 on the
inverter module board).
3. Pull out the plug connecting to the power cord of the
fan to prevent the fan from rotating when it is windy
outside. The strong winds will cause the fan to rotate and
generate electricity which can charge the capacitor or
terminals, leading to an electric shock. At the same time,
do take note of any mechanical damage. The blades of a
high speed rotating fan are very dangerous and cannot
be operated by one person alone.
4. Once the maintenance or repair is completed,
remember to reconnect the plug to the terminal;
otherwise, a fault will be reported for the main control
board.
5. When the unit is power on, the fan of the unit with auto
snow-blowing function will run periodically, so make sure
the power supply is off before touching the unit.
Please refer to the wiring schematic on the unit.
9 TECHNICAL DATA
9.1 Dimensions
Product dimension may slight differ for different
panel used, tolerance range ±30mm, the actual
size prevail to your purchasing.
Product picture on the page is for reference only.
34
NOTE
Unit: mm
1120
668
206
Fig. 9.1
V.1
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