Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual page 12

Mechanical Installation
this kit reduces the heat in the panel and smaller
door fans can be specified on the enclosure.
•
Cooling out the back (top and bottom covers).
The back-channel cooling air can be ventilated
out of the room so that the heat from the back
3 3
channel is not dissipated into the control room.
NOTICE
A door fan(s) is required on the enclosure to remove the
heat not contained in the back-channel of the frequency
converter. It also removes any additional losses
generated by other components inside the frequency
converter. Calculate the total required air flow so that
the appropriate fan(s) can be selected.
Secure the necessary airflow over the heat sink. The flow
rate is shown in Table 3.2.
Frame
D1h/D3h/D5h/D6h 102 m
D2h/D4h/D7h/D8h 204 m
Table 3.2 Airflow
Lifting
Always lift the frequency converter using the dedicated
lifting eyes. Use a bar to avoid bending the lifting holes.
Illustration 3.2 Recommended Lifting Method
10
VLT® AutomationDrive FC 302
Door fan/top fan Heat sink fan
3 /hr (60 CFM) 420 m 3 /hr (250 CFM)
3 3
/hr (120 CFM) 840 m /hr (500 CFM)
Danfoss A/S © 06/2015 All rights reserved.
WARNING
RISK OF INJURY OR DEATH
The lifting bar must be able to handle the weight of the
frequency converter to ensure that it does not break
during lifting.
•
See chapter 8.9 Power Ratings, Weight and
Dimensions for the weight of the different
enclosure types.
•
Maximum diameter for bar: 2.5 cm (1 inch).
•
The angle from the top of the frequency
converter to the lifting cable: 60° or greater.
Failure to follow recommendations could result in death
or serious injury.
Mounting
1. Ensure that the strength of the mounting location
supports the unit weight.
2. Locate the unit as near to the motor as possible.
Keep the motor cables as short as possible.
3. Mount the unit vertically to a solid flat surface to
provide cooling airflow. Ensure free space for
cooling.
4. Ensure the access to open the door.
5. Ensure the cable entry from the bottom.
MG34U402