Filter
Top Products
Instructions:
- Remove the keypad panel from the adjustable frequency drive.
- Remove the frame located beneath and discard.
- Push the option into place. Two positions are possible, with cable terminal facing either up or down. The
cable up position is often most suitable when several adjustable frequency drives are installed side by side
in a rack, as this position permits shorter cable lengths.
- Push the serial communication bus option adaptor frame for the adjustable frequency drive into place.
- Remove the plug for the Drive port and connect the plug that is connected to the BACnet option
- Replace the keypad panel.
- Attach cable.
- Fasten the cable in place using cable holders. The adjustable frequency drive top surface has pre-drilled
threaded holes for attaching the cable holders to the unit.
130BT341.10
Cabling
Cable lengths and number of nodes
The maximum cable length allowable in one segment is dependent on the transmission speed. The total cable
length includes drop cables if any. A drop cable is the connection from the main bus cable to each node. If a T-
connection is used, permissible cable length and maximum number of nodes/drives are 1, 2, 3 and 4 bus
segments.
Drop cable connection (i.e., T-connection) beyond the cable lengths indicated is not recommended, due to the
increased risk of reflection occurring. Instead, Trane recommends direct connection of the adjustable frequency
drive.
Note that a repeater is a node in both of the two segments it connects. The number of adjustable frequency
drives is based on a single master system. If there are two or more masters (e.g., PC tools, routers), the number
of adjustable frequency drives must be reduced correspondingly.
Network topology Maximum cable length
Free topology without repeater 1640 ft [500 m]
Free topology with one repeater 3280 ft [1000 m]
Free topology maximum device-to-device 1640 ft [500 m]
Bus topology single terminated 1640 ft [500 m]
Bus topology double terminated without repeater 8858 ft [2700 m]
Bus topology double terminated with one repeater 17716 ft [5400 m]
Bus topology maximum stub length 9.8 ft [3 m]
How to Install
3-2 TR200 BACnet