Danfoss VLT AQUA High Power Operation Instructions Manual page 35

VLT AQUA High Power Operation Instructions
Enclosure protection
IP21 / NEMA 1
IP54 / NEMA 12
IP21 / NEMA 1
IP54 / NEMA 12
IP00 / Chassis
* Airflow per fan. Frame size F contain multiple fans.
Table 3.2: Heatsink Air Flow
NB!
The fan runs for the following reasons:
1. AMA
2. DC Hold
3. Pre-Mag
4. DC Brake
5. 60% of nominal current is exceeded
6. Specific heatsink temperature exceeded (power size dependent).
Once the fan is started it will run for minimum 10 minutes.
3.3.7 Installation on the Wall - IP21 (NEMA 1) and IP54 (NEMA 12) Units
This only applies to frame sizes D1 and D2 . It must be considered where to install the unit.
Take the relevant points into consideration before you select the final installation site:
• Free space for cooling
• Access to open the door
• Cable entry from the bottom
Mark the mounting holes carefully using the mounting template on the wall and drill the holes as indicated. Ensure proper distance to the floor and the
ceiling for cooling. A minimum of 225 mm (8.9 inch) below the frequency converter is needed. Mount the bolts at the bottom and lift the frequency
converter up on the bolts. Tilt the frequency converter against the wall and mount the upper bolts. Tighten all four bolts to secure the frequency converter
against the wall.
Illustration 3.24: Lifting method for mounting drive on wall
Frame size
D1 and D2
E1
F1, F2, F3 and F4
F1, F2, F3 and F4
D3 and D4
E2
®
MG.20.P3.02 - VLT is a registered Danfoss trademark
Door fan / Top fan airflow
170 m 3 /h (100 cfm)
340 m 3 /h (200 cfm)
700 m 3 /h (412 cfm)*
3
525 m /h (309 cfm)*
3
255 m /h (150 cfm)
3
255 m /h (150 cfm)
3 How to Install
Airflow over heatsink
765 m 3 /h (450 cfm)
1444 m 3 /h (850 cfm)
985 m 3 /h (580 cfm)
3
985 m /h (580 cfm)
3
765 m /h (450 cfm)
3
1444 m /h (850 cfm)
3
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