Yaskawa AC Drive-L1000E Safety Precautions - Manual (Page 25)

5 Electrical Installation
YASKAWA TOEP YAIL1E 02A YASKAWA AC Drive - L1000E Safety Precautions 25
Note: Use crimp insulated terminals or insulated shrink tubing for wiring connections. Wires should have a continuous maximum
allowable temperature of 75 °C 600 Vac UL-approved vinyl-sheathed insulation.
„ Ground Wiring
Follow the precautions to wire the ground for one drive or a series of drives.
WARNING! Electrical Shock Hazard. Always use appropriate equipment for Ground Fault Circuit Interrupters (GFCI). Minimize the
length of the ground wire. The drive can cause a residual current with a DC component in the protective earthing conductor. Where a
residual current power operated protective or monitoring device is used for protection in case of direct or indirect contact, always use a
type B GFCI according to IEC/EN 60755.
WARNING! Electrical Shock Hazard. Always use a ground wire that complies with technical standards on electrical equipment and
local installation regulations. 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 may cause dangerous electrical potentials on equipment chassis, which could
result in death or serious injury.
WARNING! Electrical Shock Hazard. Always ground the motor-side grounding terminal. Improper equipment grounding could result in
death or serious injury by contacting the motor case.
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 6 when using multiple drives. Do not loop the ground wire.
Figure 6
Figure 6 Multiple Drive Wiring
<1> Codes refer to a set of three crimp terminals and three insulation caps. Prepare input and output wiring using two sets for each connection.
Example 1: Models with 300 kcmil for both input and output require one set for input terminals and one set for output terminals, so the user
should order two sets of [100-051-272].
Example 2: Models with 4/0 AWG × 2P for both input and output require two sets for input terminals and two sets for output terminals, so the
user should order four sets of [100-051-560].
OK OK Not OK