Pv Connection - Danfoss TripleLynx Installationshandbuch

Please check all wiring. Connecting a phase wire to the neutral terminal may per-
manently damage the inverter. Do not remove the short circuit bridge (1).

2.6. PV Connection

Note:
For details please see the section on
Do NOT connect PV to earth!
1. First verify the polarity and maximum voltage of the PV arrays by measuring the PV open
circuit voltage.
2. Use a suitable voltmeter that can measure up to 1000 V DC.
3. Measure the DC voltage between the plus-terminal of the PV array and Earth (or the
green/yellow PE cable). The DC voltage between the minus-terminal of the PV array and
Earth (or the green/yellow PE cable) must also be measured.
4. The measured voltage between PV plus-terminal and Earth should approximate zero. If
the voltage is fairly constant and non zero there is an insulation failure somewhere in the
PV array.
5. Locate and fix the failure before continuing.
6. Repeat this procedure for all arrays.
It is allowed to distribute the input power on the inputs unevenly, presuming that:
1. the nom. PV power of the inverter is not exceeded (10.3 / 12.9 / 15.5 kW)
2. the individual input is not exceedingly loaded, and not more than 6000 W
3. the maximum short circuit current of the PV modules at STC (Standard Test Conditions)
must not exceed 12 A per input
Illustration 2.13: DC Connection Area
Specifications .
On the inverter turn the DC-switch into off po-
sition. Connect the PV cables by means of MC4
connectors. Ensure correct polarity! The DC-
switch can now be switched on when re-
quired.
L00410309-03_2q
2. Installation
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