3.3 Main Circuit Wiring
This section describes the functions, specifications, and procedures required to safely and properly wire the main circuit in
the Z1000 Bypass.
NOTICE: Do not solder the ends of wire connections to the bypass. Soldered wiring connections can loosen over time. Improper wiring
practices could result in malfunction due to loose terminal connections.
NOTICE: Do not switch the bypass input to start or stop the motor. Frequently switching the bypass on and off shortens the life of the DC
bus charge circuit and the DC bus capacitors, and can cause premature bypass failures. For the full performance life, refrain from switching
the bypass on and off more than once every 30 minutes.
u
Removing/Reattaching the Bypass Front Cover
WARNING! Electrical Shock Hazard. Do not open the front cover of the bypass while the power is on. Failure to comply may result in death
or serious injury. Make sure that the disconnect handle is in the “OFF” position before attempting to open the front cover.
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Models Z1B1D002 to D074 and Z1B1B001 to B077
1.
Turn the disconnect handle to the “OFF” position.
Figure 3.2 Disconnect Power
2.
Remove the two front cover screws using a #2 Phillips screwdriver.
3.3 Main Circuit Wiring
56
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
