TD350 Series VFD Extension cards
-295-
24V incremental PG
card
EC-PG505-24
Simplified incremental PG
card
EC-PG507-12
24V simplified
incremental PG
card EC-PG507-24
A.2 Dimensions and installation
All extension cards are of the same dimensions (108 mm × 39 mm) and can be installed in the same
way.
Following the following operation principles when installing or removing an extension card:
1. Ensure that no power is applied before installing the extension card.
2. The extension card can be installed in any one of the SLOT1, SLOT2, and SLOT3 card slots.
3. VFDs of 5.5 kW or lower can be configured with two extension cards at the same time, and those
of 7.5 kW or higher can be configured with three extension cards.
4. If interference occurs on the external wires after extension 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.
Fig A.1 shows the installation diagram and a VFD with extension cards installed.
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