Baldor VS1STS Series Installation & Operating Manual page 8

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1-2 Introduction
The motor shaft will rotate during the auto tune procedure. Be certain that the unexpected motor
shaft movement will not cause injury to personnel or damage to equipment.
MEDICAL DEVICE/PACEMAKER DANGER - Magnetic and electromagnetic fields in the vicinity
of current carrying conductors and industrial motors can result in a serious health hazard to
persons with cardiac pacemakers, internal cardiac defibrillators, neurostimulators, metal
implants, cochlear implants, hearing aids, and other medical devices. To avoid risk, stay away
from the area surrounding a motor and its current carrying conductors.
Disconnect motor leads (U, V and W) from control before you perform a "Dielectric Withstand"
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
Underwriter Laboratory requirements.
Suitable for use on a circuit capable of delivering not more than the RMS symmetrical short circuit
amperes listed here at rated voltage.
Horsepower RMS Symmetrical Amperes
1 – 60
Do not connect AC power to the Motor terminals U, V and W. 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.
If the DB hardware mounting is any position other than vertical, the DB hardware must be de-
rated by 35% of its rated capacity.
Only Baldor cables should be used to connect the keypad and control. These are special twisted
pair cables to protect the control and the keypad. Damage associated with other cable types are
not covered by the Baldor warranty.
If an M-Contractor is installed, the control must be disabled for at least 200msec before the
M-Contractor is opened. If the M-Contractor is opened while the control is supplying
voltage and current to the motor, the control may be damaged. Before the control is enabled, the
M-Contractor must be closed for at least 200msec.
Use of power correction capacitors on the output of the drive can result in erratic operation of
the motor, nuisance tripping, and/or permanent damage to the drive. Remove power
correction capacitors before proceeding. Failure to observe this precaution could result
in damage to, or destruction of, the equipment.
Integral solid state short circuit protection does not provide branch circuit protection. Branch
circuit protection must be provided in accordance with the National Electric Code and any
additional local codes.
If the DB hardware mounting is any position other than vertical, the DB hardware must be derated
by 35% of its rated capacity.
Only Baldor cables should be used to connect the keypad and control. These are special twisted
pair cables to protect the control and the keypad. Damage associated with other cable types are
not covered by the Baldor warranty.
If an M-Contactor is installed, the control must be disabled for at least 200msec before the
M-Contactor is opened. If the M-Contactor is opened while the control is supplying voltage and
current to the motor, the control may be damaged. Before the control is enabled, the M-Contactor
must be closed for at least 200msec.
Use of power correction capacitors on the output of the drive can result in erratic operation
of the motor, nuisance tripping, and/or permanent damage to the drive. Remove power
correction capacitors before proceeding. Failure to observe this precaution could result in
damage to, or destruction of, the equipment.
Integral solid state short circuit protection does not provide branch circuit protection. Branch
circuit protection must be provided in accordance with the National Electric Code and any
additional local codes.
5,000
MN767S