7.4 Drive Cooling Fans 7.4 Drive Cooling Fans NOTICE: Follow cooling fan replacement instructions. The cooling fan cannot operate properly when installed incorrectly and could seriously damage the drive. To ensure maximum useful product life, replace all cooling fans when performing maintenance. Contact your OYMC representative or supplier to order replacement cooling fans as required. Some drive models have multiple cooling fans. For drives with multiple cooling fans, replace all the fans when performing maintenance to ensure maximum useful product life. u Cooling Fan Replacement The cooling fan is installed on the top of the drive.
The cooling fan can easily be replaced without tools or removal of the drive or enclosure parts. WARNING! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to comply can result in serious personal injury. Before servicing the drive, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least one minute after all indicators are OFF and measure the DC bus voltage level to confirm safe level. CAUTION! Burn Hazard. Do not touch a hot drive heatsink.
Failure to comply could result in minor or moderate injury. Shut off the power to the drive when replacing the cooling fan. To prevent burns, wait at least 15 minutes and ensure the heatsink has cooled down. n Removing the Cooling Fan 1. Depress the right and left sides of the fan cover tabs and pull upward. Remove the fan cover from the top of the drive. The following figure illustrates a drive with a single cooling fan. A B C Periodic Inspection & Maintenance A – Fan cover B – Cooling fan C – Tab Figure 7.1 Remove the Cooling Fan Cover 2. Remove the fan cable carefully, disconnect the pluggable connector and remove the fan. 7 SIEP C710606 33A OYMC AC Drive – J1000 User Manual 145