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Attach the mixing fan cable in-line connector.
Insert the mixing fan into the fan housing with the label facing the open side of the housing.
With the mixing fan label facing up, snap the mixing fan assembly into the slot in the power terminal mounting plate.
For IP21/Type 1 and IP54/Type 12 enclosures only, fasten 3 screws (T25) at the bottom of the drive.
For IP20/Chassis enclosures only, fasten 3 M8 nuts.
3.5 Installing the Motor Terminal Block
To install the motor terminal block, use the following steps. Refer to
Procedure
Position the motor terminal block by sliding it upward under the 2 metal clips on the power terminal mounting plate.
Fasten 2 screws (T25) at the lower end of the motor terminal block.
Tighten the hex busbars onto the PEM studs on the IGBT output busbars.
The shorter hex busbar is the middle hex busbar (V). Torque to 9.6 Nm (85 in-lb).
Place 3 Nomex® tubes in the drive, 1 around each hex busbar at the center of the 3 current sensors.
Place the shorter tube (marked with a red line) around the middle hex busbar.
Install the W motor busbar:
Fasten 1 screw (T30) in the current sensor end of the busbar.
Fasten 1 thread-forming screw (T25) in the middle of the busbar.
Install the V motor busbar:
Fasten 1 screw (T30) in the current sensor end of the busbar.
The V screw is shorter than the U and W screws.
Fasten 1 thread-forming screw (T25) in the middle of the busbar.
Install the U motor busbar:
Slide the insulator sleeve over the U busbar.
Fasten 1 screw (T30) in the current sensor end of the busbar.
Fasten 1 thread-forming screw (T25) in the middle of the busbar.
Position the new EMC shield between the mains terminal block and motor terminal block and secure with 2 screws (T25).
Reconnect wiring to the motor terminals.
Attach the U/V/W terminal label.
3.6 Installing the Brake/Regen Terminal Block
If the brake option or regen/load share option is present, reinstall the brake/regen terminal block using the following steps.
Procedure
Position the brake/regen terminal block in the drive on top of the motor terminal block.
Secure 2 screws (T40) in the terminal block.
Install the R(-) busbar:
Fasten 1 M8 nut (13 mm) at the upper end of the busbar.
Fasten 1 M4x8 thread-forming screw (T20) in the busbar at the terminal block.
Install the R(+) busbar:
Fasten 1 screw (T40) at the upper end of the busbar.
Fasten 1 thread-forming screw (T25) in the busbar at the terminal block.
Reconnect the brake or regen/load share wiring.
3.7 Installing the Mains Terminal Block
To install the mains terminal block, use the following steps. Refer to
.
Procedure
Place the mains terminal block in position by sliding it under the 2 metal clips on the power terminal mounting plate.
Secure 2 screws (T25) in the lower end of the mains terminal block.
If removed previously, fasten 1 screw (T25) in the EMC shield below the terminal block.
AN275538690239en-000101 / 130R0721
12 | Danfoss A/S © 2022.11
Reassembly
300 A Current Sensor Kit for D1h/D3h/D5h/D6h Drives
Installation Guide
