3 Electrical Installation
EN 12 YASKAWA Europe TOEP C710616 92D AC Drive L1000H Quick Start Guide
5. Make sure the ground conductor complies with technical standards and local safety rules. When an EMC filter is
installed, the leakage current exceeds 3.5 mA. Therefore according to IEC/EN 61800-5-1, at least one of the
conditions below must be satisfied:
– The cross-section of the protective earthing conductor must be at least 10 mm
2
(Cu) or 16 mm
2
(Al).
– The power supply must be disconnected automatically in case of discontinuity of the protective earthing
conductor.
6. Install an AC or DC reactor for IEC/EN 12015 compliance. Refer to the Technical Manual or contact your supplier
for details.
Main and Control Circuit Wiring
Wiring the Main Circuit Input
Note the following precautions when wiring the main circuit input:
• Use only fuses recommended in Main Circuit on page 11.
• When using residual current monitoring or detection devices (RCM / RCD), make sure the devices are designed for use
with AC drives (e.g., type B according to IEC/EN 60755).
• If using an input switch, make sure that the switch does not operate more frequently than once every 30 minutes.
• When frequently switching on/off power supply (e. g. for energy saving reasons) make sure the power is not cycled
more than 54 times per day.
• Use a DC reactor or AC reactor on the input side of the drive:
– To suppress harmonic current.
– To improve the power factor on the power supply side.
– When using an advancing capacitor switch.
– With a large capacity power supply transformer (over 600 kVA).
L3L3 L2L2 L1L1L3 L2 L1
E
L3
L2
L1
PE
Make sure the ground wire is grounded
Enclosure panel
Metal plate
Grounding surface
(remove any paint or sealant)
Drive
Grounding surface
(remove any paint or sealant)
Motor cable (braided shield cable, max. 10 m)
Cable clamp
Ground plate
(scrape off any visible paint)
EMC noise filter
Motor
Ground the cable shield
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