Lifting; Wall Mounting - Ip21 (Nema 1) And Ip54 (Nema 12) Units - Danfoss VLT AQUA Drive D-Frame Operating Instructions Manual

Installation
Airflow
The necessary airflow over the heat sink must be secured.
The flow rate is shown in Table 2.2.
The fan runs for the following reasons:
•
AMA
•
DC Hold
•
Pre-Mag
•
DC Brake
•
60% of nominal current is exceeded
•
Specific heatsink temperature exceeded (power
size dependent)
•
Specific Power Card ambient temperature
exceeded (power size dependent)
•
Specific Control Card ambient temperature
exceeded
Frame Door fan/top fan
D1h/D3h
102 m 3 /hr (60 CFM)
D2h/D4h 3
204 m /hr (120 CFM)
Table 2.2 Airflow

2.3.2 Lifting

Always lift the frequency converter using the dedicated
lifting eyes. Use a bar to avoid bending the lifting holes.
CAUTION
The angle from the top of the frequency converter to the
lifting cables should be 60° or greater.
VLT ® AQUA Drive D-Frame
Operating Instructions
Heatsink fan
420 m 3 /hr (250 CFM)
3
840 m /hr (500 CFM)
®
MG21A202 - VLT is a registered Danfoss trademark
Illustration 2.1 Recommended Lifting Method
2.3.3 Wall Mounting - IP21 (NEMA 1) and
IP54 (NEMA 12) Units
Consider the following before selecting the final instal-
lation site:
•
Free space for cooling
•
Access to open the door
•
Cable entry from the bottom
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