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WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Caution:
Caution:
Caution:
Caution:
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MN715P
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.
This unit has an automatic power up start 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 power up start
of the motor could cause injury to personnel, this feature should be
turned off.
Be sure the system is properly grounded before applying power. Do
not apply AC power before you ensure that grounds are connected.
Electrical shock can cause serious or fatal injury.
Do not remove cover for at least five (5) minutes after AC power is
disconnected to allow capacitors to discharge. Electrical shock can
cause serious or fatal injury.
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.
Dynamic brake resistors may generate enough heat to ignite
combustible materials. Keep all combustible materials and
flammable vapors away from brake resistors.
Suitable for use an a circuit capable of delivering not more
than 5,000 RMS symmetrical amperes, at rated voltage.
Disconnect motor leads (T1, T2 and T3) from control before
you perform a "Megger" test on the motor. Failure to
disconnect motor from the control will result in extensive
damage to the control. The control is tested at the factory for
high voltage / leakage resistance as part of Underwriters
Laboratories Inc. requirements.
Do not connect AC power to the Motor terminals T1, T2 and
T3. Connecting AC power to these terminals may result in
damage to the control.
Baldor recommends not using "Grounded Leg Delta"
transformer power leads that may create ground loops.
Instead, we recommend using a four wire Wye.
General Information 2-2
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