Opening/Closing The Bypass Cover Using Procedure 2 - YASKAWA HV600 Technical Reference

Ac drive bypass for hvac fan and pump applications

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2.7 Removing/Reattaching Covers

Opening/Closing the Bypass Cover Using Procedure 2

DANGER! Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized bypass. Before servicing,

disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal capacitor

stays charged after the bypass is de-energized. The charge indicator LED extinguishes when the DC bus voltage decreases below

50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make sure that the bypass is

safe. If you do work on the bypass when it is energized, it will cause serious injury or death from electrical shock.

Turn the disconnect handle to the "OFF" position.

DANGER! Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized bypass. Before

servicing, disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The

internal capacitor stays charged after the bypass is de-energized. The charge indicator LED extinguishes when the DC

bus voltage decreases below 50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous

voltages to make sure that the bypass is safe. If you do work on the bypass when it is energized, it will cause serious injury

or death from electrical shock.

Figure 2.17 Disconnect Power

YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference