3.1 Safety Precautions
64 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
3.1 Safety Precautions
DANGER
Electrical Shock Hazard
Do not examine, connect, or disconnect wiring on an energized drive. Before servicing,
disconnect all power to the equipment and wait for the time specified on the warning label at a
minimum. The internal capacitor stays charged after the drive is de-energized. The charge
indicator LED extinguishes when the DC bus voltage decreases below 50 Vdc. When all
indicators are OFF, remove the covers before measuring for dangerous voltages to make sure
that the drive is safe.
Failure to obey will cause death or serious injury.
Make sure that all electrical connections are correct and install all drive covers before
energizing the drive. Use terminals for their intended function only.
Incorrect wiring or ground connections, and incorrect repair of protective covers can cause death or serious
injury.
WARNING
Electrical Shock Hazard
Correctly ground the drive before turning on the EMC filter switch.
Failure to obey can cause death or serious injury.
Use the terminals for the drive only for their intended purpose. Refer to the technical manual for
more information about the I/O terminals.
Wiring and grounding incorrectly or modifying the cover may damage the equipment or cause injury.
Crush Hazard
Use a lifting mechanism made to move large drives when necessary.
Failure to obey can cause death or serious injury from falling equipment.
Do not try to flip over a hanging drive or leave a hanging drive unattended.
Failure to obey can cause death or serious injury from falling equipment.
Prevent more than 1.96 m/s
2
(0.2 G) vibration and impact to a hanging drive.
Failure to obey can cause death or serious injury from falling equipment.
Use screws to correctly attach the drive front cover, terminal blocks, and other drive
components before hanging the drive vertically.
Failure to obey can cause serious injury or death from falling equipment.
Only approved personnel can operate a crane or hoist to move the drive.
Failure to obey can cause death or serious injury from falling equipment.
Fire Hazard
When installing the drive into a closed cabin or cabinet, use a cooling fan or cooler to decrease
the temperature around the drive. Make sure that the intake air temperature to the drive is 50 °C
(122 °F) or less for open chassis type drives, (IP20) and 40 °C (104 °F) or less for enclosed wall-
mounted type (UL Type1) drives.
Failure to obey can cause the drive to overheat and cause fire, death or serious injury.
When installing dynamic braking options, wire the components as specified by the wiring
diagrams.
Failure to obey can result in fire, death or serious injury. Incorrect wiring can cause damage to braking
components.
Do not use the main circuit power supply (Overcurrent Category III) at incorrect voltages. Make
sure that the drive rated voltage aligns with the power supply voltage before energizing the
drive.
Failure to obey can cause death or serious injury.
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