Danfoss VLT AQUA Drive FC 202 Design Guide

Max.I
out
(%)
at T
AMB, MAX
D, E and F enclosures
Altitude (km)
HO
NO
T
at 100% I
out
100%
96%
92%
0 K
-3 K
-6 K
1 km 2 km 3 km
-5 K
-8 K
-11 K
130BC015.10
AMB, MAX
Figure 5.2 Derating of Output Current versus Altitude at T
AMB,
MAX
for Enclosure Sizes D3h.
5.2 Derating for Long Motor Cables or
Cables with Larger Cross-Section
NOTICE!
Applicable for adjustable frequency drives up to 90 kW
(125 hp) only.
The maximum cable length for this adjustable frequency
drive is 300 m (984 ft) for non-shielded cable, and 150 m
(492 ft) for shielded cable.
The adjustable frequency drive has been designed to
work using a motor cable with a rated cross-section. If a
cable with a larger cross-section is used, reduce the
output current by 5% for every step the cross-section is
increased.
Increased cable cross-section leads to increased capacity
to ground, and thus an increased ground leakage
current.
5.3 Derating for Ambient Temperature
The average temperature (T
AMB, AVG
) measured over 24
hours must be at least 5 °C (9 °F) lower than the maximum
permitted ambient temperature (T
AMB,MAX
). If the adjustable
frequency drive operates at high ambient temperatures,
then decrease the continuous output current. Derating
depends on the switching pattern, which can be set to 60°
AVM or SFAVM in 14-00 Switching Pattern.
5.3.1
Derating for Ambient Temperature,
Enclosure Size A
60° AVM – Pulse Width Modulation
2
20%
4 6 8
10
12 14 16
40%
60%
80%
100%
110%
I
out
(%)
f
sw
(kHz)
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
130BA393.10
0
0
Figure 5.3 Derating of I
out
for Dierent T
AMB, MAX
for Enclosure
Size A, using 60° AVM
SFAVM – Stator Frequency Asyncronous Vector
Modulation
2
20%
4 6 8 10 12 14 16
40%
60%
80%
100%
110%
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
0
0
130BD639.10
I
out
(%)
f
sw
(kHz)
Figure 5.4 Derating of I
out
for Dierent T
AMB, MAX
for Enclosures
Type A, using SFAVM
When using only 10 m (33 ft) motor cable or less in
enclosure size A, less derating is necessary. This is due to
the fact that the length of the motor cable has a relatively
high impact on the recommended derating.
60° AVM
2
20%
4 6 8 10 12 14 16
40%
60%
80%
100%
110%
I
out
(%)
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
0
0
130BA394.10
f
sw
(kHz)
Figure 5.5 Derating of I
out
for Dierent T
AMB, MAX
for Enclosures
Type A, using 60° AVM and Maximum 10 m (33 ft) Motor
Cable
Special Conditions
VLT
®
AQUA Drive FC 202
116 Danfoss A/S © 09/2014 All rights reserved. MG20N622
55

Danfoss VLT AQUA Drive FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive FC 202
Category	DC Drives
Language	English