WARNING! Electrical Shock Hazard. Always use a ground wire that complies with technical standards on
electrical equipment and minimize the length of the ground wire. Improper equipment grounding may cause
dangerous electrical potentials on equipment chassis, which could result in death or serious injury.
WARNING! Electrical Shock Hazard. Be sure to ground the drive ground terminal. (200 V Class: Ground to
100 Ω
or less, 400 V Class: Ground to 10 Ω or less). Improper equipment grounding could result in death or
serious injury by contacting ungrounded electrical equipment.
NOTICE: Do not share the ground wire with other devices such as welding machines or large-current electrical
equipment. Improper equipment grounding could result in drive or equipment malfunction due to electrical
interference.
NOTICE: When using more than one drive, ground multiple drives according to instructions. Improper
equipment grounding could result in abnormal operation of drive or equipment.
Refer to Figure 3.9 when using multiple drives. Do not loop the ground wire.
A
B
A – Correct B – Incorrect
Figure 3.9 Multiple Drive Wiring
3.6 Main Circuit Wiring
50
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
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