Q2 Q2A, Technical Manual

Page: 348 / 866

8.5 Replace the Drive
348 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
8.5 Replace the Drive
WARNING! Electrical Shock Hazard. While the drive is ON, never attempt to change any wiring, disconnect any option cards or
connectors, or replace the cooling fan. Before performing any repairs, shut OFF the power supply to the drive and verify that
there is no residual voltage in the unit. Failure to do so may result in serious electric shock.
WARNING! Electrical Shock Hazard. Only let authorized persons install, wire, maintain, examine, replace parts, and repair the
drive. Failure to obey can cause death or serious injury.
WARNING! Electrical Shock Hazard. Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized
drive. 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 drive is de-energized. The charge indicator LED extinguishes when the DC bus
voltage decreases below 50 Vdc. When all indicators are OFF, measure for dangerous voltages to make sure that the drive is
safe. If you do work on the drive when it is energized, it will cause serious injury or death from electrical shock.
NOTICE: Observe correct electrostatic discharge (ESD) procedures when touching the drive and circuit boards. Failure to obey
can cause ESD damage to the drive circuitry.
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About the Control Circuit Terminal Block
You can remove the control circuit terminal block of the drive and install a new terminal block. If there is a failure
in the drive, you can use this feature to easily replace the control circuit terminal block.
A - Control circuit terminal block B - Control circuit terminal block fastening screw
Figure 8.61 Control Circuit Terminal Block
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Notes on Wiring the Main Circuit Terminal Block
Read these notes before you wire the main circuit terminal block.