MN715P
General Information
2-2
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 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.
WARNING:
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.
WARNING:
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.
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.
Caution:
Suitable for use an a circuit capable of delivering not more
than 5,000 RMS symmetrical amperes, at rated voltage.
Caution:
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.
Caution:
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.
Caution:
Baldor recommends not using “Grounded Leg Delta”
transformer power leads that may create ground loops.
Instead, we recommend using a four wire Wye.
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