Section Safety; Section Safety - YASKAWA L1000V Technical Manual

4.1 Section Safety

4.1

Section Safety

Do not change wiring, remove covers, connectors or options cards, or attempt to service the drive with power
applied to the drive.
Disconnect all power to the drive, and lock out the power source. After shutting off the power wait for at least the
amount of time specified on the drive front cover safety label. Measure the DC bus voltage for unsafe voltages to
confirm safe level before servicing to prevent electric shock The internal capacitor remains charged even after the
power supply is turned off. Failure to comply will result in serious injury from electric shock.
Do not perform elevator test operations or drive setup when the elevator is occupied.
The elevator car may not stop properly during test operation resulting in serious injury to personnel. Additionally,
ensure these parameters are set correctly and tested before operating an occupied elevator:
• parameter o1-20 (Traction Sheave Diameter)
• parameter S5-11 (Deceleration Distance), or
• parameter S5-12 (Stop Distance)
Ensure all personnel are clear of the motor and elevator before Auto-Tuning.
The motor or equipment may suddenly rotate during the Auto-Tuning process, which may result in serious personal
injury or death.
Ensure all personnel are clear of the motor and elevator before Auto-Tuning.
The motor or equipment may suddenly rotate during the Auto-Tuning process, which may result in serious personal
injury or death.
The drive is capable of running the motor at high speed.Verify the maximum drive output frequency before
starting the drive.
Failure to comply may cause injury or death due to inadvertent high speed operation.
Verify drive parameter b1-03 Stopping Method is set to 0:Ramp to Stop before starting the drive.
Failure to comply may cause the elevator to free-fall when the Up/Down command is removed.
System may start unexpectedly upon application of power when the Auto-Reset function is enabled resulting in
death or serious injury.
Use care when enabling Auto-Reset as this function may cause unintended start of the elevator.
If holding brake circuits are not configured properly, load equipment may fall or drop during power loss or
drive fault, which could result in death or serious injury.
• Provide a separate holding brake if necessary.
• Always construct the external sequence to confirm that the holding brake is activated in the event of an emergency, a
power failure, or an abnormality in the drive.
• If using the drive with an elevator, provide safety measures on the elevator to prevent the elevator from dropping.
Install additional emergency stop circuits separately from the drive emergency circuits.
Failure to comply may result in personal injury.
Remove the Up/Down Command before resetting alarms and faults.
Failure to comply can result in death or serious injury.
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DANGER
Electrical Shock Hazard
W ARNING
Sudden Movement Hazard
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