INVT Goodrive350 Series Operation Manual page 347

Goodrive350 series high-performance multifunction VFD
Comply with the following operation principles when installing or removing an expansion card:
1. Ensure that no power is applied before installing an expansion card.
2. An expansion card can be installed into a respective card slot among SLOT1, SLOT2, and SLOT3.
3. VFDs of 5.5 kW or lower can be configured with two expansion cards at the same time, and those
of 7.5 kW or higher can be configured with three expansion cards.
4. If interference occurs on the external wires after expansion cards are installed, change their
installation card slots flexibly to facilitate the wiring. For example, the connector of the connection
cable of the DP card is large, so it is recommended to be installed in the SLOT1 card slot.
5. To ensure high anti-interference capability in closed-loop control, you need to use a shielding wire
in the encoder cable and ground the two ends of the shielding wire, that is, connect the shielding
layer to the housing of the motor on the motor side, and connect the shielding layer to the PE
terminal on the PG card side.
Note: For 2.2–5.5kW models, the 24V power suply card can be inserted into SLOT1; for 7.5kW and
higher models, the 24V power supply card can be inserted into SLOT1 or SLOT3; for 11kW and
higher models, the 24V power supply card can be inserted into any of the three slots.
Figure A-1 shows the installation diagram and a VFD with expansion cards installed.
EC 1
EC 2
EC 3
Figure A-1 VFD of 7.5 kW or higher with expansion cards installed
EC 1
EC 2
Figure A-2 VFD of 5.5 kW or lower with expansion cards installed
Expansion card installation process:
EC installation diagram
ECs installing
EC 1
EC 2
EC 3
Diagram of ECs installed
EC 1
EC 2
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Expansion cards
ECs installed