5 Installation Procedure18 YASKAWA ELECTRIC TOBP C730600 22B V1000 Option CC-Link Installation Manual◆ Installing the Option UnitRemove the front cover of the drive before installing the CC-Link Option. Follow thedirections below for proper installation.1. Switch off the power supply to the drive.DANGER! Electrical Shock Hazard - Do not connect or disconnect wiring while the power is on. Failure tocomply will result in death or serious injury. Before installing the CC-Link Option, disconnect all power to thedrive. The internal capacitor remains charged even after the power supply is turned off. The charge indicatorLED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least fiveminutes after all indicators are off and measure the DC bus voltage level to confirm safe level.2. Remove the front cover. The original drive front cover may be discarded because itwill be replaced by the CC-Link Option cover in step 8.Figure 4Figure 5 Remove Front Cover3. Remove the bottom cover and connect the CC-Link Option ground cable to theground terminal.Figure 5Figure 6 Connect Ground CableNote: The four different ground cables packaged with the CC-Link Option connect the unit to differentmodels. Select the proper ground cable from the CC-Link Option kit depending on drive size.ground terminalground cablebottom cover