Kostal PIKO Series Operating Manual page 52

Installation
1 2 3
Check the strings for earth faults and short circuits
3.
and correct these where appropriate.
Fig. 37: Connect the PV string
Crimp the plug on the plus cable and the socket
4.
on the minus cable professionally. The inverter is
equipped with Multi-Contact plug connectors from
(type MC4). Be absolutely sure to take note of the
manufacturer's latest information (e.g. use of special
tools, permitted torques, etc.)
Pay attention to the correct polarity when mounting
the sockets and the plugs on the DC cables of the
solar modules! The poles of the PV strings (PV field)
must not be earthed.
Plug the sockets and plugs of the DC cables onto
5.
the inverter. Fig. 37 Keep the plug seals from the
plug connectors.
The DC side is connected.
H
03 / 2015 | DOC01361707 | KOSTAL operating manual PIKO inverter 3.0 - 20
4 5 6 7
when installing.
1
8 9 10 11
DANGER
RISK OF DEATH DUE TO ELECTRI-
CAL SHOCK AND DISCHARGE!
De-energise the device, secure it
against being restarted and wait
five minutes so that the capacitors
can discharge.
Ch. 4.3
IMPORTANT
INFORMATION
The cross-section of the DC cables
should be as large as possible,
a maximum of 4 mm² for flexible
cables and 6 mm² for rigid cables.
We recommend using tin-plated
cables. If non-tin-plated cables
are used, the copper strands may
oxidise, as a result of which the
transition resistance of the crimp
connections will be too high.
Information on the Internet at
1
www.multi-contact.com.
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