Main cable(AC line cable)shall be short circuit protected and thermal overload
protected.
Always fit the input cable with fuse. Normal gG(US:CC or T)fuses will protect the input
cable in short circuit situation. They will also prevent damage to adjoining equipment.
Dimension the fuses according to local safety regulations, appropriate input voltage
and the related current of the solar inverter.
AC output protected by external fuse(gG rated current 25A/250VAC for 3.0KW /3.3KW;
32A/250VAC for 3.6KW/4.2KW/4.6KW/5.0KW/5.3KW/5.98KW) provides in all live
connections to the AC supply.
The rated short circuit breaking capacity of the above protective device shall be at
least equal to the prospective fault current at the point of installation. See section
technical data of this manual details.
AC output cable: Cu; L, N,PE: 3*4.0mm² for 3.0KW/3.3KW/3.6KW and 3*5mm² for
4.2KW/4.6KW/5.0KW/5.3KW/5.98KW @40℃ ambient temperature with a max length
of 5m, with operating time of the fuses is less than 5 seconds, installation method B2
according to EN60204-1:2006, annex D: cable in conduit cable trunking system,
number of loaded circuit only one. Use H07RNF(cord designation 60245 IEC66) for an
ambient temperature of 40℃ or less and use 90℃ wire for ambient temperature
between 40℃ and 60℃.
Note 1: For those different conditions mentioned above, dimension of the cables
according to local safety regulations, appropriate input voltage and the load and the
load current of the unit.(You can choose a thicker cable but the fuses must rated
according to the cable.)
Note 2: Fuses must be approved by Notified Body.
Inverter is not provided galvanic isolation from the mains to the PV array, feedback
current to the array is 25A/250VAC for 3.0KW and 3.3KW; 32A/250VAC for 3.6KW,
4.2KW, 4.6KW, 5.0KW, 5.3KW and 5.98KW based on the fuse provided in the mains.
Also in the worst case the reverse current comprises the sum of the short-circuit
currents of all intact lines.
Therefore the current-carrying capacity of the components and sub-assemblies
provided in the end-use system(connectors, cables, junction box, switch ger, etc.) and
the reverse current PV modules shall be considered based on the feedback current
and reverse current. The direct current(DC) circuit breaker or fuse between each solar
generator and inverter shall be provided based on solar inverter input ratings.
Select DC cables based in the above inverter back-feed current and ISC PV rating and
Vmax ratings.
Selection of Fuses and Cables connection
2
NOTE!
Earth Connection
Ø
Screw the ground screw with allen wrench shown as follow. (φ4
hexagon wrench.torque:1.5±0.2Nm)
5.5.2 Communication interface
This product has a series of communication interfaces: such as WiFi,
RS485/Meter/DRM and USB for upgrading for human and machine
communication. Operating information like output voltage, current,
frequency, faulty information, etc., can be delivered to PC or other
monitoring equipment via these interfaces.
WiFi
This inverter provides a WiFi port which can collect information from inverter
including status, performance and updating information to monitoring website
via connecting Pocket WiFi( purchase the product from supplier if needed)
Connection steps:
1).Plug the Pocket WiFi into “WiFi/LAN/GPRS” port at the bottom of inverter.
2).Connect the WiFi with router.
3).Set the station account on the solaX web.(Please check the Pocket WiFi user
manual for more details) (torque:0.6±0.1Nm)
22
Installation Installation
23
Ø
WARNING!
Be sure the ground wire must be connected!
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