SMA SB5.0-1SP-US-40 Manuel De Service page 6

3 Disconnecting the Inverter from Voltage Sources
7. Disconnect the display cable from the socket on
the communication assembly.
8. Use a current clamp to ensure that no current is present in the DC conductors.
9. Ensure there is no voltage on the AC-out connecting terminal plate between L1 and N and L2
and N using a suitable measuring device. To do this, stick the test probe (max. diameter: 2 mm
(0.078 in)) in each rectangular opening of the terminal.
10. Ensure there is no voltage on the AC-out connecting terminal plate between L1 and the
equipment grounding conductor and L2 and the equipment grounding conductor using a
suitable measuring device. To do this, stick the test probe (max. diameter: 2 mm (0.078 in)) in
each rectangular opening of the terminal.
6 SB50-60-1SP-US-40-AT-PU-SG-xx-10
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Service Manual