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CAUTION
Power cords and communication wiring must
be laid out separately, they cannot be placed
in the same conduit. Use a power supply
conduit to isolate if the current of the power
supply is less than 10 A. If the current is
greater than 10 A but less than 50 A, the
spacing must exceed 50 mm at all times.
Otherwise, it may lead to electromagnetic
interference.
Arrange the refrigerant piping, power cords
and communication wiring in parallel, but do
not tie the communication wiring together
with the refrigerant piping or power cords.
Power cords and communication wiring
should not come in contact with the internal
piping so as to prevent the high temperature
piping from damaging the wires.
5.10.4 Connecting the power cord
CAUTION
Do not connect the power supply to the
communication terminal block. Otherwise,
the whole system may fail.
Turn off the power supply first.
Connect the earth wires , earth wires must
use yellow-green wire.
Earth wires are recommended to perform
curling.
Do tighten the terminal with an appropriate
screwdriver. Screwdrivers that are too small
may damage the terminal head, and cannot
tighten it.
CAUTION
The power supply calbe diameter must
comply with the specified specification.
The power supply calbe must be clamped to
prevent external force being applied to the
terminal.
1. Use round-type terminals of the correct specifications
to connect the power cable.
WARNING
Use rubber cable grommets to knockout
holes to avoid
power supply cable and
communication wiring being worn.
2. Connect the power cord according to the sign
"L1,L2,L3,N" and connect the earth wire according to
the sign "
3. Fasten and fix the cables with wire clamp to avoid
stress on the terminals.
The size of the screws and recommended torque are as
Fig 5.38
follows:
Table 5.8
Screw size
30
".
Power supply
L1
L2
L3
N
WARNING
Terminals must be used for connection. Use
round-type
terminals
of
specifications to connect the power cables.
Do not directly connect the cable ends. Use
the correct terminal, or it may cause heating
and fire.
wire clamp
WARNING
Select a proper torque according to the screw
size.
Too small torque may cause poor contact,
resulting in heating of the terminals and fire.
Too large torque may damage the screws
and power supply terminals.
Standard value (kgf.cm)/(Nm)
M4
12.2/1.2
M8
61.2/6.0
Fig 5.39
the
correct
Fig 5.40
V.1
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