Danfoss CD302 Manual page 3

Manual
VSD with IP20 enclosure
LCP, front panel and terminals
Optional relay card
Control card
Heat sink fan (main fan)
Internal fan
Power card
S
ERVICE PARTS REPLACEMENT
The internal parts from VSD's with IP20 enclosure must be dismounted in the following sequential order:
1. LCP, front panel and terminals
2. Optional relay card
3. Control card
4. Heat sink fan
5. Internal fan
6. Power card
It is recommended to keep each dismounted part grouped together with its screws. This will facilitate
remounting.
Remounting non-defective or new parts must be done in reverse order (starting with the power card,
ending with the LCP).
• Remove the Local Control Panel (LCP), or remove the cover if the LCP is not installed
• Remove the LCP support
• Remove the front panel to access the terminal blocks, using a screwdriver, as shown below
• Unplug all terminals
The optional relay card (130B1110) is located below the LCP, if installed. It is plugged on the control card,
without any screws.
• Take it out from the control card connector.
• Unscrew and remove the metallic plates in front of the control card.
• Take out the control card from the power card connector.
To access the main fan, the plastic enclosure of the VSD must be opened. It is made of two shells assem-
bled together around the aluminium housing of the VSD.
• Push the different tongues simultaneously, and separate the plastic shells.
• Unplug the fan from the power card connectors, and remove it.
Some IP20 VSD's have an extra internal fan dedicated to electronic boards cooling.
• Unplug the internal fan from the power card and remove it.
• Unscrew the power card from the aluminium housing.
• Take it out from the housing.
Note that to install the new power card, heat conductive paste must be placed between the IGBT
(Insulated Gate Bipolar Transistor) and the heat sink (aluminium housing).
FRCC.ES.007.A1.02 3