Serial Communication Bus Connection - Trane TR200 Operator's Manual

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Figure 3.19 Control Terminals Location
1. EIA-485 terminal
2. Jumper wire
3. Control terminals
4. Grounded restraining clips
3.4.10 Serial Communication Bus
Connection
The ECB reports serial communication data to host systems
through the drive. Connection to the serial communication
network is made either through the EIA-485 terminals on
the drive (see figure above) or, for other protocols,
terminals located on the communication option card. For
option card connection, see the option card instructions
provided with the unit.
•
For ECB serial communication protocols using the
EIA-485 terminals, make connections in the
following manner.
NOTE!
It is recommended to use braided-shielded, twisted-pair
cables to reduce noise between conductors.
1. Connect signal wires to terminal (+) 68 and
terminal (-) 69 on control terminals of drive. (See
the drive support materials for wire size and
tightening torque.)
2. Terminate shield to grounded restraining clip
provided by stripping wire insulation at point of
contact.
3. If shielded cabling is used, do not connect the
end of the shield to terminal 61.
BAS-SVX49A-EN
Programming
Serial communication point maps, parameter settings, and
other details for bypass option functionality are included in
the serial communication materials supplied with the unit.
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Installation
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