NOTICE
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
Once the fan is started it runs for minimum 10 minutes.
External ducts
If additional duct work is added externally to the Rittal
cabinet the pressure drop in the ducting must be
calculated. Use the charts below to derate the frequency
converter according to the pressure drop.
90
80
70
60
50
40
30
20
10
0
0
0.5
4.9
13
27.3
45.9
66
89.3 115.7 147
(%)
(Pa)
Pressure Increase
Dr
iv
e D
er
ating
130BB007.10
Illustration 3.31 D frame Derating vs. Pressure Change
Drive air flow: 450 cfm (765 m
3
/h)
90
80
70
60
50
40
30
20
10
0
(%)
Dr
iv
e D
er
ating
0
0
0.1
3.6
9.8 21.5 43.4
76
237.5
278.9
(Pa)
Pressure Change
130BB010.10
147.1
Illustration 3.32 E frame Derating vs. Pressure Change (Small
Fan), P250T5 and P355T7-P400T7
Drive air flow: 650 cfm (1105 m
3
/h)
90
80
70
60
50
40
30
20
10
0
(%)
Dr
iv
e D
er
ating
0
0.2
0.6
2.2
5.8
11.4 18.1 30.8
152.8 210.8
(Pa)
Pressure Change
130BB011.10
69.5
Illustration 3.33 E frame Derating vs. Pressure Change (Large
Fan), P315T5-P400T5 and P500T7-P560T7
Drive air flow: 850 cfm (1445 m
3
/h)
90
80
70
60
50
40
30
20
10
0
(%)
Dr
iv
e D
er
ating
0
25
50
75
100
125
150
175
225
130BB190.10
200
Pressure Change
Illustration 3.34 F1, F2, F3, F4 frame Derating vs. Pressure
Change
Drive air flow: 580 cfm (985 m
3
/h)
How to Install
VLT
®
Automation Drive FC 300 Operating Instructions
MG33U402 - Rev. 2013-12-16
33
3
3
Содержание VLT AutomationDrive FC 302
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