Planning the electrical installation
55
Additional data for calculating the rise time and the peak line-to-line voltage
The peak line-to-line voltage at the motor terminals generated by the drive as well as
the voltage rise time depend on the cable length. The requirements for the motor
insulation system given in the table are “worst case” requirements covering
installations with 30 meter and longer cables.
If you need to calculate the actual peak voltage and voltage rise time considering the
actual cable length, proceed as follows:
• Peak line-to line voltage: Read the relative
Û
LL
/
U
N
value from the appropriate
diagram below and multiply it by the nominal supply voltage (
U
N
).
• Voltage rise time: Read the relative values
Û
LL
/
U
N
and (d
u
/d
t
)/U
N
from the
appropriate diagram below. Multiply the values by the nominal supply voltage
(U
N
) and substitute into equation
t
= 0.8 ·
Û
LL
/(d
u
/d
t
).
Additional note for sine filters
Sine filters protect the motor insulation system. A factory-installed sine filter is
available for the cabinet-installed units. The peak phase-to-phase voltage with the
sine filter is approximately 1.5 ×
U
N
.
Additional note common mode filters
Common mode filter is available as a plus code option (+E208).
l
Motor cable length
A
Graph for calculating the rise time of units with du/dt filter
B
Graph for calculating the rise time of units without du/dt filter
Û
LL
/
U
N
du/dt
U
N
-------------(1/
s)
1.0
2.0
5.0
4.0
3.0
1.5
2.5
3.5
4.5
100
200
300
100
200
300
0.0
0.5
1.0
1.5
2.0
2.5
3.0
l
(m)
du/dt
U
N
-------------(1/
s)
Û
LL
/
U
N
5.5
l
(m)
A
B
Summary of Contents for ACS850-04 series
Page 1: ...ABB machinery drives Hardware manual ACS850 04 drive modules 160 to 560 kW 200 to 700 hp ...
Page 4: ......
Page 12: ...Table of contents 12 ...
Page 20: ...Safety instructions 20 ...
Page 26: ...Introduction to the manual 26 ...
Page 81: ...Installation 81 Assembly drawing frame G1 3AUA0000132078 ...
Page 82: ...Installation 82 Assembly drawing frame G2 3AUA0000132062 ...
Page 83: ...Installation 83 Assembly drawing air baffles 3AUA0000132062 ...
Page 92: ...Installation 92 3 6a 6b 5 4 8 4 8 6a 6b 7a 7b 7b ...
Page 112: ...Installation checklist 112 ...
Page 114: ...Start up 114 ...
Page 116: ...Fault tracing 116 ...
Page 140: ...Technical data 140 ...
Page 142: ...Dimension drawings 142 Frame G1 Drive module dimensions ...
Page 143: ...Dimension drawings 143 Frame G1 Drive module dimensions with optional cabling panels H381 ...
Page 144: ...Dimension drawings 144 ...
Page 145: ...Dimension drawings 145 Frame G1 Cabling panels H383 installed into a Rittal TS 8 cabinet ...
Page 146: ...Dimension drawings 146 Frame G2 Drive module dimensions ...
Page 147: ...Dimension drawings 147 Frame G2 Drive module dimensions with optional cabling panels H381 ...
Page 148: ...Dimension drawings 148 ...
Page 149: ...Dimension drawings 149 Frame G2 Cabling panels H383 installed into a Rittal TS 8 cabinet ...
Page 150: ...Dimension drawings 150 Frames G1 and G2 Bottom plate 3AUA0000082240 ...
Page 151: ...Dimension drawings 151 Frames G1 and G2 Air baffles 3AUA0000138986 ...
Page 152: ...Dimension drawings 152 ...
Page 162: ...du dt filters 162 ...
Page 164: ...3AUA0000081249 Rev C EN 2013 04 11 Contact us www abb com drives www abb com drivespartners ...