Danfoss D9h, Руководство по эксплуатации

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4.7 Cooling Requirements
N O T I C E
OVERHEATING
Improper mounting can result in overheating and reduced performance.
Install the drive following the installation and cooling requirements.
Ensure that top and bottom clearance for air cooling is provided. Clearance requirement: 225 mm (9 in).
Provide sufficient airflow flow rate. See
4.8 Airflow Rates .
Consider derating for temperatures starting between 45 °C (113 °F) and 50 °C (122 °F) and elevation 1000 m (3300 ft) above sea
level.
The enclosed drive, excluding the input power options cabinet, utilizes a back-channel cooling concept that removes the air used to
cool the heat sink. The heat sink cooling air carries approximately 90% of the heat out of the back channel of the drive. Different
back-channel cooling kits are available to redirect the airflow based on individual needs.
4.8 Airflow Rates
Table 39: Airflow Rates for D9h Enclosure
Cabinet Back-channel fan [m
3
/hr (cfm)] Drive module top fan [m
3
/hr (cfm)] Cabinet door fan [m
3
/hr (cfm)]
PHF/line reactor 450 (265) – –
Drive 420 (250) 102 (60) 150 (90)
dU/dt – – –
Sine-wave 900 (530) – –
Top entry/top exit – – –
Table 40: Airflow Rates for D10h Enclosure
Cabinet Back-channel fan [m
3
/hr (cfm)] Drive module top fan [m
3
/hr (cfm)] Cabinet door fan [m
3
/hr (cfm)]
PHF/line reactor 515 (303) – –
Input options – – 510 (310)
Drive 840 (500) 204 (120) 315 (185)
dU/dt – – –
Sine-wave 900 (530) – –
Top entry/top exit – – –
Table 41: Airflow Rates for E5h Enclosure
Cabinet Back-channel fan [m
3
/hr (cfm)] Drive module top fan [m
3
/hr (cfm)] Cabinet door fan [m
3
/hr (cfm)]
PHF/line reactor 765 (450) – –
Input options – – 510 (310)
Drive 994 (585) 595 (350) 335 (200)
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Mechanical Installation
VLT® AutomationDrive FC 302
Operating Guide