Introduction - Trane TR200 Operating Instructions Manual

Introduction

Purpose of the manual
This manual is intended to provide detailed information for the installation and operation of the option panel
used in conjunction with a Trane variable frequency drive (VFD or drive). To enable efficient handling of the
equipment, requirements are provided for installation of mechanical, electrical, and control wiring, proper
grounding, and environmental considerations. Pre-start and start up procedures are detailed. Also included is
a detailed overview of the option panel bypass function. In addition, identification of other optional components
and their operation and start up troubleshooting instructions are included. For the electronically controlled by-
pass, additional programming and operation information is provided.
Warnings, Cautions and Notices
Note that warnings, cautions and notices appear at appropriate intervals throughout this manual. Warnings are
provide to alert installing contractors to potential hazards that could result in personal injury or death. Cautions
are designed to alert personnel to hazardous situations that could result in personal injury, while notices indicate
a situation that could result in equipment or property-damage-only accidents.
Your personal safety and the proper operation of this machine depend upon the strict observance of these
precautions.
Warnings, Cautions and Notices appear at appropriate sections throughout this literature. Read these carefully.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also
be used to alert against unsafe practices.
NOTICE
Indicates a situation that could result in equipment or property-damage only accidents.
Note
Indicates something important to be noted by the reader.
✮
Indicates default setting
Table 1.1
Overview
A variable frequency drive regulates the speed and operation of an electric motor(s). The drive is programmable
and offers many features and savings compared to operating a motor from unregulated line voltage. The option
panel is a protective enclosure in which the drive and various optional components are assembled and mounted.
One of the most common functions of the option panel is to allow switching between VFD control and running
in bypass. In bypass, the motor is operated directly from line input power.
Two types of bypass options are available: the electromechanical bypass (EMB) and electronically controlled
bypass (ECB). The EMB is operated by selector switches on the front of the panel. The EMB controls a motor(s)
by switching between drive control, operation in bypass, or off. In addition, a test setting is available which
disengages the motor from the drive but keeps the drive operational while the motor runs in bypass. The
switching function activates contactors that open or close to provide power to the motor through the drive or
bypass circuitry, as required.
4 TR200 Option Panel Operating Instructions