SMA SB 240 - Manual (Page 64)

13 Decommissioning
13.1 Disconnecting the AC Field Plug
Removing and reassembling the AC field plug is only possible within 72 hours
• In total, the AC field plug may at maximum be removed three times and only within the
first 72 hours after the first assembly.
• After the period of 72 hours has expired, the AC field plug must not be removed.
• The cable must be shortened again before the assembling.
Procedure:
1.
Danger to life due to electric shock
Do not disconnect the AC field plug under load.
• Ensure that the circuit breaker is switched off and that it cannot be reconnected.
• Make sure that the PV modules are covered.
2. Unlock and remove the AC field plug from the
connector of the inverter AC cable. Hook a flat-
blade screwdriver (blade width: 4 mm) into the
wide slot at the AC field plug and lever it open.
At the same time, pull out the AC connector.
3. If necessary, disassemble the AC field plug:
• Loosen the screw connection of the plug enclosure.
• Remove the seal from the opening of the thread. Make sure not to damage the fins of the
plug enclosure.
• Detach the plug enclosure from the
insulator. Insert a flat-blade screwdriver
(blade width: 4 mm) into the small slot of
the plug enclosure and unlock the fastening
clamps until the insulator is detached from
the plug enclosure.
• Loosen all three screws using a screwdriver and remove the conductors.
• Prior to reassembling the AC field plug, shorten the cable.
• If necessary, reassemble the AC field plug (see Section 6.4 "Assembling the AC Field
Plug", page 33).
13 Decommissioning SMA Solar Technology AG
Installation Manual SMA-SB240-IA-en-12 64