Danfoss DLX 4.6 Podręcznik Użytkownika Pobierz pdf (Strona 34)

34 User Guide DLX Series L00410623-1

Table 4.3: Position of the jumper for the termination resistance

Network connection

umper Position Pins

1. CAN termination resistance

2. RS-485 termination resistance

The pins are terminated.

The pins are disconnected.

4.3.7. Checks before Start Up

 Mounting:

- Check that the bracket and the inverter are correctly mounted and secured.

 PV wiring:

- Check that the PV cables are rated for the PV current and for the expected

environmental conditions.

- Check that the wiring is performed according to local and national electrical

regulations.

 Connection:

- Check that the PV conductors are correctly torqued to the DC terminals.

- Check that all connectors and cable glands are correctly tightened and sealed.

 DC side:

- Verify that the PV open-circuit voltage, V

, does not exceed 600 V

- Check that the DC polarity is correct.

 AC side:

- Verify that the AC conductors on are correctly connected to the AC terminals.

 Grounded conductors:

- Check that the grounded conductors are properly sized, and not fused or switched.

 Jumpers:

- Check that the jumpers for the grounding setup and for the termination resistance

are correctly positioned according to the grounding setup.

 Disconnects:

- Ensure that all current-carrying conductors on both the DC and AC side can be

disconnected, and that the disconnects are located correctly and are readily

accessible.

 Overcurrent protection:

- Ensure that the overcurrent protection on both the DC and the AC side are rated

correctly, and capable of being changed without touching live contacts.

 Inverter cover:

- Ensure that no cables interfere with the sealing of the inverter lower cover, and

fasten the cover firmly to the housing. Recommended tightening torque is 1.0 Nm

/ 0.74 ft-lbf.

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Danfoss DLX 4.6 Podręcznik Użytkownika Strona 34