Laserfiche WebLink
8 Disconnecting the Inverter from Voltage SourcesSMA Solar Technology AG <br />Installation Manual SBxx-1SP-US-41-IA-xx-12 61 <br />8 Disconnecting the Inverter from Voltage Sources <br />Prior to performing any work on the inverter, always disconnect it from all voltage sources as <br />described in this section. Always adhere to the prescribed sequence. <br />DANGER <br />Danger to life due to electric shock when live components or DC conductors <br />are touched <br />When exposed to light, the PV array generates dangerous direct voltage. Even if the DC load- <br />break switch of the inverter is in the O, position, there will be dangerous direct voltage present in <br />the DC conductors and on the DC-in terminal block in the Connection Unit. Touching live DC <br />conductors results in death or lethal injuries due to electric shock. <br />• If an external DC disconnecting switch is available, open the external DC disconnecting <br />switch. <br />• Leave the DC-in terminal block plugged into the Connection Unit and only touch it on the <br />black enclosure. <br />WARNING <br />Danger to life due to electric shock from destruction of the measuring device <br />due to overvoltage <br />Overvoltage can damage a measuring device and result in voltage being present in the <br />enclosure of the measuring device. Touching the live enclosure of the measuring device results in <br />death or lethal injuries due to electric shock. <br />• Only use measuring devices with a DC input voltage range of 600 V or higher. <br />Procedure: <br />1. Disconnect the AC circuit breaker and secure it against reconnection. <br />2. Set the DC load-break switch of the inverter to O. <br />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22