YASKAWA L1000A Technical Manual page 49

Make sure the protective earthing conductor complies with technical standards and local safety regulations.
When an EMC filter is installed, the leakage current exceeds 3.5 mA. Therefore according to IEC61800-5, an
automatic power supply interruption in case of a broken earthing conductor must be provided. Alternatively a
protective earthing conductor with a cross section of at least 10 mm
Use a GFCI of type B according to IEC 60755 when a leakage current protective or monitoring device is required for
protection in case of direct or indirect contact. Failure to comply may result in injury due to electrical shock.
Improper equipment grounding may cause dangerous electrical potentials on equipment chassis, which could
result in death or serious injury.
Always use a ground wire that complies with technical standards on electrical equipment and minimize the length of
the ground wire.
Improper equipment grounding could result in death or serious injury by contacting ungrounded electrical
equipment.
Always ground the ground terminal. (200 V Class: Ground to 100 Ω or less, 400 V Class: Ground to 10 Ω or less).
Comply with proper wiring practices.
The motor may run in reverse if the phase order is backward, causing incorrect elevator direction movement and injury
to personnel.
Connect motor input terminals U, V and W to drive output terminals U/T1,V/T2, and W/T3. The phase order for the
drive and motor should match.
Do not connect the AC power line to the output motor terminals of the drive.
Failure to comply could result in death or serious injury by fire as a result of drive damage from line voltage
application to output terminals.
Install a properly controlled contactor on the input-side of the drive for applications where power should be
removed from the drive during a fault condition.
Improper equipment sequencing could result in death or serious injury.
Do not connect the AC power line to the output motor terminals of the drive. Failure to comply could result in
death or serious injury by fire as a result of drive damage from line voltage application to output terminals.
• Do not connect AC line power to output terminals U, V, and W.
• Make sure that the power supply lines are connected to main circuit input terminals R/L1, S/L2, T/L3 (or R/L1 and S/
L2 for single-phase power).
Install a properly controlled contactor on the input-side of the drive for applications where power should be
removed from the drive during a fault condition.
Improper equipment sequencing could result in death or serious injury.
Install adequate branch circuit short circuit protection per applicable codes.
The drive is suitable for circuits capable of delivering not more than 100,000 RMS symmetrical amperes, 240 Vac
maximum (200 V Class) and 480 Vac maximum (400 V Class). Inadequate branch short circuit protection could result
in damage to the drive.
Tighten all terminal screws to the specified tightening torque.
Loose electrical connections could result in death or serious injury by fire due to overheating of electrical connections.
Improperly tightened terminal screws can also cause erroneous equipment operation.
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
W ARNING
Sudden Movement Hazard
Fire Hazard
2 2
(Cu) or 16 mm (Al) must be used.
3.1 Section Safety
3
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