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3. ELECTRICAL REQUIREMENT
Use
Size
1.25 mm
2
Maximum
Power
(16AWG) Type 60245 IEC
supply
0.5 mm
2
cable
Minimum
(20AWG)
Transmis-
2
0.33 mm
sion
(22AWG)
cable
1.25 mm
2
Maximum
(16AWG)
MODBUS
cable
0.128 mm
2
Minimum
(26AWG)
Fuse
2 A
capacity
L
W
*
ORKS is registered trademark of Echelon Corporation in the
ON
United States and other countries.
* MODBUS
is registered trademark of Schneider Electric SA.
* : Use shielded cable in accordance with local rules for MODBUS cable.
4. MODBUS COMMUNICATION SPECIFICATIONS
Transfer mode
RTU mode
Communication
Half-duplex operation, Master/slave method
method
Communication speed 9600bps / 19200bps
Synchronous system
Asynchronous communication method
Data bit
8 bit
Parity
even/odd/none
Stop bit
2 bit (no parity) / 1 bit
Network
3 wire RS485
Maximum cable length 1000 (m) (3280 (ft))
5. SELECTING AN INSTALLATION LOCATION
5.1. Dimensions
The MODBUS Convertor is comprised of a body and cover.
10 (3/8)
4x20=80 (3-1/2)
Hole pitch
5-Ø13 (1/2)
For dust proof
bushing
225 (8-7/8)
241 (9-1/2)
260 (10-1/4)
4-Ø5 (3/16)
For M4x16mm screws
Wire type
Remarks
1Ø AC208–240 V
50/60Hz, 2 Cable +
earth (ground)
57 or equivalent
[Always earth (ground)
the unit]
22AWG LEVEL4
L
W
(NEMA)
ON
ORKS
nonpolar 2 core,
compatible cable
twisted pair solid
core Shielded
AWG16-26
3Wire+
Sheathed PVC
cable
Unit : mm (in.)
69 (2-11/16)
For conduit
Ø22 (7/8)
2-Ø5 (3/16)
For M4x16mm
screws
54
Hole pitch
(2-1/8)
Power supply
Power consumption (W)
Operating
Temperature
°C(°F)
Packaged
Humidity (%)
Packaged
Dimensions
H x W x D mm(in.)
Weight g (oz.)
6. WIRING
Before starting installation work, turn off the power of this unit and the
connection destination. Do not turn on the power again until installation
is completed. Otherwise, it will cause electric shock or fire.
Use specified cables or accessory cables to connect to this unit.
Do not modify the cables to connect this unit other than those specified,
do not use extension cables, and do not use independent branch wiring.
It may cause electric shock or fire.
Install the transmission cables securely to the terminal block. Confirm
that external force is not applied to the cable. Use transmission cables
made of the specified cable. If intermediate connection or insertion fix-
ing are imperfect, it will cause electric shock, fire, etc.
When connecting the cables to this unit, route the cables so that the
cover of this unit is securely fixed. If the cover is imperfectly fixed, it may
cause fire or overheating of the terminals.
Perform earth (ground) work positively. Do not connect the earth (ground)
cable to a telephone cable, water pipe, or conductor rod.
Always fasten the outside covering of the cables with the cable clamp. (If
the insulator is chafed, electric leakage may occur.)
Perform all wiring works so that the user does not touch the wiring.
Otherwise, injury or electric shock could result.
If any cable is damaged, do not repair or modify it yourself. Improper
work will cause electric shock or fire.
Do not bind the remote controller cable and the transmission cable
together with or parallel to the power supply cable of the indoor and
outdoor units. It may cause erroneous operation.
When performing wiring work, be careful not to damage the cable or
injure yourself. Also, connect the connectors securely. Loose connec-
tors will cause trouble, heating, fire, or electric shock.
Install the indoor and outdoor units, power supply cable, transmission
cable and remote control cable 1 m (40 in.) away from television and ra-
dio to avoid distorted images and noise. Otherwise, a malfunction could
result.
Perform wiring so that water does not enter this unit along the external
wiring. Always install a trap to the wiring or take other countermeasures.
Otherwise it will cause trouble or electric shock or fire.
Confirm the name of each unit and name of each terminal block of the
unit and connect the wiring in accordance with the directions given in
the manual so that there is no incorrect wiring. Incorrect wiring will dam-
age the electric parts and cause smoke and fire.
When installing the connection cables near a source of electromagnetic
waves, use shielded cable.
Otherwise, a breakdown or malfunction could result.
The terminal screws and earth (ground) screws have different shapes.
Be sure to install the screws in the correct locations. If the screws are
installed in the wrong locations, the circuit board could be damaged.
1Ø AC208–240V
50/60 Hz
2.0
0–46 (32–114)
-10–60 (14–140)
0–95 (RH); No condensation
54 × 260 × 150
(2-1/8 × 10-1/4 × 5-7/8)
1100 (39)
WARNING
CAUTION
En-2
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