+
-
Differential switch
Never install in the grid connection for TL units (without transformer) a differential switch with a limit current below
the maximum fault current which may occur in the PV installation under all its operating conditions.
The ground capacitance of the PV modules varies depending on the manufacturing technology (e.g. thin layer
modules with cells on metal support).
The PV modules used with the INGECON SUN LITE TL unit must have a coupling capacitance of less than 50 nF/
kWp.
During feeding to the grid, a shunt current is produced from the cells to ground the value of which depends on the
type of module assembly and also varies with atmospheric conditions (rain, snow).
This service-conditioned shunt current must not exceed the breaking current value of the differential switch. If it
does so, the connection of the inverter to the grid may trip the differential switch external to the inverter.
The unit will need to be started up manually, as the ON / OFF status is conserved even though the apparatus is
disconnected.
How to connect it is detailed in Section 9 Display control.
5.3.8 Connection to the PV array
The inverter is connected to the PV array by means of quick connect terminals specifically designed for the purpose.
This type of quick connect terminal requires the use of specific tools.
Never forget that whenever they receive solar radiation, the panels generate voltage in their terminals.
The inverter can therefore have voltages of up to 550 volts inside even when not connected to the grid.
The inverter has a maximum system voltage of 550 Vdc. Check that the PV array configuration cannot supply this
voltage to the inverter even under the most adverse conditions, e.g. an ambient temperature of -10ºC.
In the case of damage due to the DC voltage exceeding 550 Vdc, Ingeteam Energy S.A. accepts no liability for such
damage.
CAUTION:
Connect the positive pole of the solar panels to the terminals , and the negative
pole to the terminals marked -.
The inverter's factory-fitted terminals support a maximum current of 20 amperes.
Installation Manual
INGECON
®
SUN LITE
AAY2000IKI01
AAY2000IKI01
Rev. _B
Date: March 2011
Page 36
36
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cumplimiento será denunciado por daños y perjuicios. Todos los derechos están reservados, incluyendo
aquellos que resulten de derechos de patentes o registro del diseño.
La correspondencia del contenido del documento con el hardware ha sido comprobada. Sin embargo,
pueden existir discrepancias. No se asume ninguna responsabilidad por la concordancia total. La infor-
mación que contiene este documento es revisada regularmente y es posible que se produzcan cambios
en siguientes ediciones.
El presente documento es susceptible de ser cambiado.
The copy, distribution or use of this document or of its content requires written authorisation. Any
breach thereof will be reported for damages. All rights reserved including those of patent rights or
design registration.
The conformity of the document content with the hardware described has been checked. However,
discrepancies may exist. Liability will not be assumed for total concordance. The information contained
in this document is regularly revised and it is possible that there may be changes in subsequent
editions.Other functions may be available which are not covered by this document.
This document may be changed.
Manual de instalación
INGECON
®
SUN LITE
AAY2000IKH01
AAY2000IKH01
Rev. _B
Fecha: Marzo 2011
Page 2