COMMISSIONING vacon • 9924-hour support +358 (0)201 212 575 • Email: vacon@vacon.com1010. COMMISSIONING10.1 SafetyBefore commissioning, note the following directions and warnings:Internal components and circuit boards of the frequency converter (except for thegalvanically isolated I/O terminals) are live when Vacon NX is connected to mainspotential. Coming into contact with this voltage is extremely dangerous and maycause death or severe injury.The motor terminals U, V, W and the DC-link/brake resistor terminals –/+ are livewhen Vacon NX is connected to mains, even if the motor is not running.The control I/O-terminals are isolated from the mains potential. However, the relayoutputs and other I/O-terminals may have a dangerous control voltage presenteven when Vacon NX is disconnected from mains.Do not make any connections with the frequency converter connected to the mains.After having disconnected the frequency converter from the mains, wait until thefan stops and the indicators on the keypad go out (if no keypad is attached see theindicator through the keypad base). Wait 5 more minutes before doing any work onVacon NX connections. Do not even open the cabinet door or cover before this timehas expired.Before connecting the frequency converter to mains make sure that the Vacon NXfront cover is closed.9000.emf13006.emf9001.emf
