5 • vacon safetyTel. +358 (0)201 2121 • Fax +358 (0)201 21220511.2 Safety instructions1.3 Earthing and earth fault protectionThe Vacon 10 frequency converter must always be earthed with an earthing conduc-tor connected to the earthing terminal. See figure below:• The earth fault protection inside the frequency converter protectsonly the converter itself against earth faults.• If fault current protective switches are used they must be testedwith the drive with earth fault currents that are possible to arise infault situations.The Vacon 10 frequency converter has been designed for fixedinstallations only.Do not perform any measurements when the frequency con-verter is connected to the mains.Do not perform any voltage withstand tests on any part ofVacon 10. The product safety is fully tested at factory.Prior to measurements on the motor or the motor cable, dis-connect the motor cable from the frequency converter.Do not open the cover of Vacon 10. Static voltage dischargefrom your fingers may damage the components. Opening thecover may also damage the device. If the cover of Vacon 10 isopened, warranty becomes void.
