Toshiba BMS-CT1280UL, Manual

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-EN
Air Conditioning Control System (Touch Screen Controller) Installation Manual
Termination resistance setting
•RS-485 termination resistance setting ...................Set at both ends of the RS-485 communication line. Set one end at the main
unit and the other end at the interface. The termination resistance of the main
unit is already set as a factory default. Refer to the interface installation
manual to set the termination resistance of the interface.
• TCC-LINK termination resistance setting ..............Set on the air conditioner. The TCC-LINK termination resistance is not set in
the
main unit
.
Leave "open".
Shield grounding process
•RS-485 cable wire shielded wire ......................... Connect to the FG terminal block.
• TCC-LINK communication cable shielded wire .....When using the air conditioning control system with one unit, open the
shielded wire of the TCC-LINK communication cable and perform insulation
processing.
When using the air conditioning control system with multiple units, connect
the shield of the TCC-LINK communication line to the closed end and open
the shield at the final end of the air conditioning control system to perform
insulation processing.
Perform TCC-LINK communication line shield grounding on the air
conditioner side.
REQUIREMENT
• Be sure to install a circuit breaker or all-pole isolating switch (with a contact breaking distance of at least 0.12″ (3 mm)) on
the primary side of the power supply.
• Fasten the screws to the terminal block with torque of 0.37 lbf•ft (0.5 N•m).
TCC-LINK communication line stripping
length RS-485 cable wire stripping length Digital I/O cable stripping length Unit: inch (mm)
Attach a round crimp terminal to each wire of the power line and
signal line. Loosen the screws with a screwdriver, insert the digital I/O cable,
and tighten the screws securely.
1.38" (35)
1.38" (35)
2.17" (55)
1.38" (35)
0.24" (6)
Round crimp terminal