Danfoss VLT AQUA Drive FC 200 Instruction Manual page 41

4 How to Install
NOTE!
A door fan is required on the enclosure to remove the heat losses not contained in the backchannel of the drive and any additional
losses generated from other components installed inside the enclosure. The total required air flow must be calculated so that the
appropriate fans can be selected. Some enclosure manufacturers offer software for performing the calculations (i.e., Rittal Therm
software).
Airflow
The necessary airflow over the heatsink must be ensured. The flow rate is shown below.
Enclosure protection
4
IP21 / NEMA 1
IP54 / NEMA 12
IP21 / NEMA 1
Table 4.1: Heatsink Air Flow
NOTE!
For the drive section, the fan runs for the following reasons:
1.
2.
3.
4.
5.
6.
7.
8.
Once the fan is started, it will run for a minimum of 10 minutes.
NOTE!
For the active filter, the fan runs for the following reasons:
1.
2.
3.
4.
5.
Once the fan is started, it will run for a minimum of 10 minutes.
4-24
Frame size
D11
E7 P315
E7 P355-P450
F17
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
Active filter running
Active filter not running, but line power current exceeding limit (power size dependent)
Specific heatsink temperature exceeded (power size dependent)
Specific Power Card ambient temperature exceeded (power size-dependent)
Specific Control Card ambient temperature exceeded
MG.20.T1.22 - VLT
VLT AQUA Low Harmonic Drive Instruction
Door fan(s) / Top fan airflow
Total airflow of multiple fans
510 m 3 /h (300 cfm)
680 m 3 /h (400 cfm)
680 m 3 /h (400 cfm)
3
4900 m /h (2884 cfm)
®
is a registered Danfoss trademark
Heatsink fan(s)
Total airflow of multiple fans
2295 m 3 /h (1350 cfm)
2635 m 3 /h (1550 cfm)
2975 m 3 /h (1750 cfm)
3
6895 m /h (4060 cfm)
Manual