Replacing The Ac-Rly Assembly; Removing The Ac-Rly Assembly - SMA NR-PL-ACRLY5-01 Instrucciones Para La Sustitución

6 Replacing the AC-RLY Assembly

12. Ensure that no voltage is present at the DC inputs on
the inverter using a suitable measuring device.
13. Unscrew (TX25) all ten screws of the enclosure lid of
the AC-Connection Unit and remove the enclosure
lid carefully towards the front.
14. Set the screws and the enclosure lid aside and store safely.
15. Ensure there is no voltage on the AC terminal block between L1 and N, L2 and N, and L3 and
N using a suitable measuring device. To do so, insert the test probe (maximum diameter:
2.5 mm (0.078 in)) into the measuring points of the respective terminal blocks.
16. Ensure that there is no voltage on the AC terminal block between L1 and grounding
conductor, L2 and grounding conductor, and L3 and grounding conductor using a suitable
measuring device. To do so, insert the test probe (maximum diameter: 2.5 mm (0.078 in)) into
the measuring points of the respective terminal blocks.
6 Replacing the AC-RLY Assembly
6.1

Removing the AC-RLY Assembly

1. Disconnect the inverter from all voltage sources (see Section 5, page 12).
2. Wait 5 minutes. This will ensure that the capacitors are discharged.
3. Remove the enclosure lid of the AC-Power Unit (TX25) by pulling it towards the front.
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