Danfoss VLT FC 103 Installation Instructions Manual - Page 3

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Installation Instructions

1.4.1 Removing the Input Terminal Plate

To remove the input terminal plate, use the following

procedure. Refer to Illustration 1.2 and Illustration 1.3.

Optional components mounted on the input terminal plate

can result in differing configurations. These options include:

•

Input disconnect.

•

RFI filter.

•

AC fuses with cooling fan.

Disconnect the input power wiring from terminals R

(L1), S (L2), T (L3), and ground connector.

Remove the uppermost retaining nut (M10) from

each of the 3 input busbars.

If a disconnect option (not shown) is present, remove

the disconnect from the terminal plate assembly to

reduce the weight of the terminal plate as follows:

Loosen the connection nut (17 mm)

between each fuse and the disconnect.

Remove the 4 mounting screws (T40) from

the disconnect.

Slide the disconnect down to clear the fuses

and remove it.

If the fuse option with cooling fan is present,

disconnect the cooling fan cable from the connector.

If the RFI filter option is present, disconnect the RFI

cable from the connector.

Remove the 8 retaining nuts (M6) from the input

terminal plate.

Lift the input terminal plate with attached input

busbars and options from the unit.

The terminal plate and attached options weigh up to 20 kg

(44 lb).

MI92Q102

500 A Current Sensor Kit for

E1/E2 Enclosure Sizes

VLT

FC 102, FC 103, FC 202, FC 302

Upper retaining nut (M10)

Input terminal plate

Mounting plate retaining nut (M6)

Input busbars

Illustration 1.2 Input Terminal Plate