14 Safety
Safe start-up and operation
These warnings are intended for all who plan to start-up or operate the drive.
General safety
WARNING! Ignoring the following instructions can cause physical injury or
death, or damage to the equipment.
• Before adjusting the drive and putting it into service, make sure that the motor and
all driven equipment are suitable for operation throughout the speed range
provided by the drive. The drive can be adjusted to operate the motor at speeds
above and below the speed provided by connecting the motor directly to the
power line.
• Improper operation or programming of the drive can cause violent motion of the
motor and driven equipment. Be certain that unexpected motor movement will not
cause injury to personnel or damage to equipment.
• Do not activate automatic fault reset functions if dangerous situations can occur.
When activated, these functions will reset the drive and resume operation after a
fault.
• Do not control the motor with an AC contactor or disconnecting device
(disconnecting means); use instead external commands (I/O or fieldbus).
• If a drive enable signal is already present when power is applied to the
MicroFlex e150, the motor could begin to move immediately.
• The metal heat sink on the left side of the MicroFlex e150 can become very hot
during normal operation.
• 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.
• When operating a rotary motor with no load coupled to its shaft, remove the shaft
key to prevent it flying out when the shaft rotates.
• A brake resistor can generate enough heat to ignite combustible materials. To
avoid fire hazard, keep all combustible materials and flammable vapors away
from brake resistors.
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