Technical data
When unmated the MC4 connectors are not IP54. The intrusion of moisture may
occur in the following situations:
1. The inverter runs in Master/Slave operation and only one or two PV in-
puts are in use. In this case, the other inputs are not connected to PV
and they are therefore open to intrusion.
2. Not all PV inputs are connected.
3. PV connectors are not fitted; for example in case of disconnection of
parts of a PV plant over a longer period of time.
In situations where the PV connectors are not fitted, a seal cap must be mounted
(included in the scope of the delivery). All inverters with MC4 connections are de-
livered with seal caps on inputs 2 and 3. During installation, the seal caps of those
inputs that are to be used are discarded.
Note:
The inverter is protected against reversed polarity but it will not generate power until the po-
larity is corrected. To achieve optimum production, the open circuit voltage (STC) of the PV
modules must be lower than the max. input voltage of the inverter (see the specifications),
multiplied with a factor of 1.13. U
OC
, STC x 1.13 ≤ U
MAX
, inv
6.6.1. Manual PV Configuration
Set up the inverter for manual configuration at security level 1:
•
via the display, at [Setup → Setup details → PV configuration]
•
via the Web Server at [Inverter → Setup → Setup details → PV configuration]
The configuration of the inverter can be changed from automatic to manual using a level 1
password [Setup → Setup details → PV configuration] or via the Web Server.
The autodetection is subsequently overridden.
To set the configuration via the display manually:
1. Turn on AC to start the inverter.
2.
Enter Installer password (supplied by distributor) in the display Setup menu. [Setup →
Security → Password].
3. Press Back and use the arrows to find the PV configuration menu under the menu Set-
up details [Setup → Setup details → PV configuration].
4. Select PV configuration mode. Make sure that the configuration that corresponds to
the wiring is selected [Setup → Setup details → PV configuration → Mode: Parallel].
6. Installation and Start-up
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