Baldor MN770 User Manual

Page 6

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General Information 1-3

MN770

Safety Notice

This equipment contains voltages that may be as great 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

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: 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 and maintained. If an automatic restart of the
motor could cause injury to personnel, the automatic restart feature
should be disabled. Disable by changing the “Restart Auto/Man”
parameter to MANUAL.

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. Peak torque of several times the rated motor torque
can occur during control failure.

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 Hardware may generate enough heat to ignite

combustible materials. Keep all combustible materials and
flammable vapors away from Dynamic Brake Hardware.

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