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Power, Signal, And Earth Line Connections - Toshiba BMS-CT1280E Installation Manual

Air conditioning control system
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Air Conditioning Control System (Touch Screen Controller)

3-3. Power, Signal, and Earth Line Connections

Connect the power, signal and earth lines to the specified terminal blocks.
REQUIREMENT
Attach round crimp terminals to all TCC-LINK 1, TCC-LINK 2, and RS-485 wiring, and tighten the screws securely. After
tightening, check that the wiring cannot come out.
Power connector
(DC 12 V)
Attach the AC adapter and
tighten securely until the screw
type fastener is fully fixed.Be
sure to connect the main unit and
the AC adapter before supplying
power to the AC adapter.
Functional earth
Connect the functional ground terminal
to the ground near the air conditioning
control system.
For DI1 to DI8, DO1 to DO4, and each COM, use a flat head precision screwdriver
to loosen the screws and open the insertion opening. After inserting the wiring,
securely tighten the screws with a precision screwdriver so that the wiring cannot
come out. After tightening, check that the wiring cannot come out.
OUTPUT
INPUT
INPUT
Connect the shield of the TCC-
LINK communication line to the
earth on the air conditioner side.
Leave the shield open (and
insulate it). Do not connect it to the
terminal block.
USB port x2
LAN port
Remote controller
LAN cable
Client
The RS-485 cable has polarity
TCC-LINK 1 and TCC-
(A, B). It will not work correctly if
LINK 2 do not have
it is connected with incorrect
polarity.
polarity.
TCC-LINK1
TCC-LINK2
RS-485
U1
U2
U1
U2
A
RS-485 signal line
TCC-LINKSignal line 2
TCC-LINKSignal
line 1
Outdoor unit
Indoor unit
Installation Manual
B
FG
Connect the
shielded wire of the
RS-485 signal line
to the FG terminal
block.
Connection with
power meter
interface/digital
I/O interface
(sold separately)
Outdoor unit
Indoor unit
Remote controller
EN
11
-EN

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Bms-ct1280e-tr