Ingeteam Ingecon Sun 250 TL Installation Manual page 32

Ingeteam Energy, S.A.
4. Isolate PV array powering cubicle A (module DC) from outside the panel. (**).
5. Disconnect the auxiliary supply.
6. Switch off three-phase protection from the corresponding protection outside the units.
7. Cut the single-phase auxiliary feed voltage to x220 terminals (D cubicle) from the corresponding protection
outside of the panel and from the -Qaux protection located in the inverter 1 module (cubicle B).
8. Wait 10 minutes for the internal capacitances to discharge (harmonic filter, etc.), for the existing internal
resistors to cool and the fan blades to stop turning.
9. Check that there is no voltage by using an appropriate multimeter. Use the PPE listed in "Important safety
precautions".
10. Signal cut-off points (DC/AC) with a sign indicating the type.
(*) When the DC module circuit breakers (cubicle B) and the AC module circuit breakers (cubicle C) are switched to
the OFF position (no voltage) a consignment lock will be placed on the door knobs (mechanical lockdown) and a sign
reading "Do not touch. Personnel at work" will be posted.
(**) If the PV array powering cubicle A (module DC) cannot be isolated from outside the panel. It should be taken
into account that the feed of the DC circuit breakers will be live and work must be done with the appropriate PPE
(dielectric gloves appropriate for the operating voltage, face shield, safety boots, work clothes, fire-retardant clothing
recommended, etc.).
The preventive measures for control tasks are the same are for inspection tasks.
Handling
To manipulate elements inside cubicles B (inverter module 1 and 2) and C (inverter module 3 and 4), you must first
power down.
To disconnect the voltage it is necessary to:
1. Stop the inverter associated with the unit from the display by switching status to stop or by using the emer-
gency stop button located in the inverter 1 module (cubicle B).
2. Switch on -Qdc1, -Qdc2, -Qdc3 and -Qdc4 circuit breakers in the DC module (PV array). (*)
3. Isolate PV array powering cubicle A (module DC) from outside the panel. (**)
4. Cut three-phase supply (circuit breakers -Qac1,-Qac2, -Qac3 and Qac4 located in cubicle D of the AC mod-
ule). In the absence of an AC module, cut three-phase power from the protection outside the unit.
5. Cut the single-phase auxiliary feed voltage to x220 terminals (D cubicle) from the corresponding protection
outside of the panel and from the -Qaux protection located in the inverter 1 module (cubicle B).
6. Wait 10 minutes for the internal capacitances to discharge (harmonic filter), for the existing internal resistors
to cool and the fan blades to stop turning.
7. Check that there is no voltage by using an appropriate multimeter. Use the PPE listed in the "Important
safety precautions" section.
8. Signal cut-off points (DC/AC) with a sign indicating the type.
(*) When the DC module circuit breakers (cubicle A) and the AC module circuit breakers (cubicle D) or the external
switch, if there is an AC module, are switched to the OFF position (no voltage) a consignment lock will be placed on
the door knobs (mechanical lockdown) and a sign reading "Do not touch. Personnel at work" will be posted.
(**) If the PV array powering cubicle A (module DC) cannot be isolated from outside the panel. It should be taken
into account that the feed of the DC circuit breakers will be live and work must be done with the appropriate PPE
(dielectric gloves appropriate for the operating voltage, face shield, safety boots, work clothes, fire-retardant clothing
recommended, etc.).
32
Installation manual
AAV2000IKI01