Introduction 1-1
MN762
Chapter 1
Introduction
This manual is intended for qualified electrical personnel familiar with installing, programming, and maintaining AC Drives.
This manual contains information on:
• Installing and wiring the VS1MX drive
• Programming the drive
• Troubleshooting the drive
1.1 Getting Assistance from Baldor
For technical assistance, contact your Baldor District Office. Before calling, please review the troubleshooting section of this
manual. You will be asked for the drive model number or catalog number that is located on the Nameplate along with the
drive serial number.
1.2 Safety Notices
This equipment contains voltages that may be as high as 1000 volts! Electrical shock can cause serious or fatal injury. Only
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
This equipment may be connected to other machines that have rotating parts or parts that are driven by this equipment.
Improper use can cause serious or fatal injury. Only qualified personnel should attempt the start-up procedure or
troubleshoot this equipment.
PRECAUTIONS: CLASSIFICATIONS OF CAUTIONARY STATEMENTS
WARNING:
Indicates a potentially hazardous situation which, if not avoided, could result in injury or death.
CAUTION:
Indicates a potentially hazardous situation which, if not avoided, could result in damage to
property.
PRECAUTIONS
WARNING:
Do not touch any circuit board, power device or electrical connection before you first ensure
that power has been disconnected and there is no high voltage present from this equipment or
other equipment to which it is connected. Electrical shock can cause serious or fatal injury. Only
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
WARNING:
Be sure that you are completely familiar with the safe operation of this equipment. This equipment
may be connected to other machines that have rotating parts or parts that are controlled by this
equipment. Improper use can cause serious or fatal injury. Only qualified personnel should
attempt the start-up procedure or troubleshoot this equipment.
WARNING: Do not use motor overload relays with an automatic reset feature. These are dangerous since the
process may injure someone if a sudden or unexpected automatic restart occurs. If manual reset
relays are not available, disable the automatic restart feature using external control wiring.
WARNING:
This unit has an automatic restart feature that will start the motor whenever input power is
applied and a RUN (FWD or REV) command is issued. If an automatic restart of the motor could
cause injury to personnel, the automatic restart feature should be disabled.
WARNING:
Be sure the system is properly grounded before applying power. Do not apply AC power before
you ensure that all grounding instructions have been followed. Electrical shock can cause serious
or
fatal
injury.
WARNING:
Do not remove cover for at least five (5) minutes after AC power is disconnected to allow
capacitors to discharge. Dangerous voltages are present inside the equipment. Electrical shock
can cause serious or fatal injury.
WARNING:
Improper operation of control may cause violent motion of the motor shaft and driven equipment.
Be certain that unexpected motor shaft movement will not cause injury to personnel or damage
to equipment. Certain failure modes of the control can produce peak torque of several times the
rated
motor
torque.
WARNING:
Motor circuit may have high voltage present whenever AC power is applied, even when motor is
not rotating. Electrical shock can cause serious or fatal injury.
WARNING:
Dynamic brake resistors may generate enough heat to ignite combustible materials. Keep all
combustible materials and flammable vapors away from brake resistors.
