7
TR1 Series
VFD
LonWorks
Option Card
The Trane TR1 Series VFD LonWorks option
card is comprised of a control card with a
NEURON chip and a memory card. When
installed into the TR1 Series variable frequency
drive, the unit enables the drive to
communicate with other devices on the LON.
The TR1 Series drive is designed to provide
precision control of standard induction electrical
motors for HVAC applications. The drive
receives three reference signals along with
start/stop and reset commands from the
network. The drive also receives a 16-bit control
word that provides full operational control of
the drive. (See Network Drive Control Input for
additional details.)
In response, the drive provides 16 output
network variables containing important drive
and motor data. (See Drive Feedback to
Network.) Output to the network includes drive
status, current, voltage, motor and inverter
thermal status, and alarms and warnings.
The TR1 Series VFD LonWorks free topology
option card, 176F1515, supports four
transmission media, which also operates on a
link power network (used for Comm 5). A router
is required to interface to a LonWorks network
when not supported by the option card.
Network
Management
Depending on the level of a given application,
a LonWorks network may or may not require
the use of a network management node. A
network management node performs
management functions, such as:
• Find unconfigured nodes and download
their network addresses.
• Stop, start, and reset node applications.
• Access node communication statistics.
• Configure routers and bridges.
• Download new applications programs.
• Extract the topology of a running
network.
TR1 Series
VFD
Applications
Common applications for the Trane TR1 Series
VFD include the following.
• The TR1 is factory mounted or field
applied under control of discrete I/O from
another controller. It is possible to
monitor the TR1 using Tracer Summit's
generic LonTalk device (GLD) object.
• The TR1 is field applied using closed loop
PID control. It is possible to enable/
disable, change setpoints, and monitor
the control through Tracer Summit using
the GLD object.
• The TR1 can be controlled digitally when
used in conjunction with Trane's AH540
and MP580 Comm 5 (LON) controllers.
• The TR1 could be operated in an open
loop control method and, under certain
circumstances, an override or contact
closure can send the drive to a preset
value.
Within a Trane BAS system, the Tracer Summit
building controller unit (BCU) and/or Rover
Service tool act as the network managers.
