YASKAWA SI-EM3 Installation Manual page 28

5 Installation Procedure
Installing the Option
Remove the front cover of the drive before you install the option.
Refer to the drive manual for information about how to remove the front covers. Different
drive sizes have different cover removal procedures.
DANGER! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to
comply could result in death or serious injury. Before installing the option, disconnect all power to the drive
and wait at least the amount of time specified on the drive front cover safety label. After all indicators are off,
measure the DC bus voltage to confirm safe level, and check for unsafe voltages before servicing. The
internal capacitor remains charged after the power supply is turned off.
1.
Shut off power to the drive, wait the appropriate amount of time for voltage to
dissipate, then remove the HOA keypad (E) and front cover (D).
NOTICE: Damage to Equipment. Observe proper electrostatic discharge procedures (ESD) when handling
the option, drive, and circuit boards. Failure to comply may result in ESD damage to circuitry.
Figure 12
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Figure 12 Remove the Front Cover and HOA Keypad
YASKAWA ELECTRIC TOBP C730600 91D YASKAWA AC Drive Option SI-EM3 Installation Manual
A1000
D
E