SMA NR-PL-DCEMV41-01, Руководство пользователя, Страница: 25 / 304

8 Commissioning the Inverter SMA Solar Technology AG
Replacement Manual STP50-DC-EMV-DST-RM-xx-10 25
9. Tighten the screws on the 2 power connections
(TX20, torque: 6.0 Nm (53.1 in-lb)). The assignment
of the blue and black cable must not be observed
since both connections are interconnected.
10. Insert the cables (1 red, 2 light blue, 1 white, 1 green, 1 black and 1 purple) into the terminals
on the board and make sure that all cables are tight.
11. Plug in all plugs on the assembly and ensure that the ribbon cable locks are snapped into
place and that the 2-pole plugs are plugged with both contacts.
12. Installing the DC EMV Assembly (see Section 6.2, page 17).
8 Commissioning the Inverter
Requirements:
☐ The AC circuit breaker must be correctly rated and mounted.
☐ The inverter must be correctly mounted.
☐ All cables must be correctly connected.
☐ Unused enclosure openings must be sealed tightly with sealing plugs.
Procedure:
1. Carry out the necessary tests according to the locally applicable laws, standards and
directives for the correct recommissioning after power assembly replacement. Take the
requirements for component replacements into account (see Section 2.2 "IMPORTANT
SAFETY INSTRUCTIONS", page 8).
2. Ensure that the grounding conductor in the inverter is correctly connected and functions
properly.
3. Position the enclosure lid of the AC-Connection Unit on the AC-Connection Unit and first
tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX 25,
torque: 6 Nm (53 in-lb)).
ENGLISH