—————— TPD32-EV ——————
268
Example
Motor
P = 30 kW, Armature volts = 420 V, Armature current = 82 A
Loadcycle
The motor is overloaded for 1 s at 180 % of the rated current, then it works at the rated
load for at least 5 s. Four quadrant converter.
Procedure
At first select the dc current according to the motor rated current. Usually it is the motor
rated current. If the determined motor operating point is not below the Overload curve
of the converter, the calculation should be repeated with the next larger converter size.
Converter
TPD32-EV-500/520-110-4B-A
Diagram
= 0.75
for05
Base current
I
dAN
82 A
110 A
=
This means that the diagram for the converters 110 A ... 185 A with a Base current = 75
% has to be considered for the calculation.
Operating point
Basis: rated data of the converter
Overload current = 82A
. 1.8 = 147.6A
for06
= 1.34
for07
Overload current
I
(of converter)
d A N
147.6 A
110A
=
Overload factor
=
= 0.16
for08
Overload time
Pause time + Overload time
1s
5s + 1s
=
1 s
Base current = 75 % I
2,00
1,75
1,50
1,25
1,00
Overload
curren
t
/
I
dAN
dAN
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1,0
Overload time / (Pause time + Overload time)
Overload time
Figure 6.14.6.3: Example- Operating point of drive
The calculated operating point is below the corresponding curve for an overload time of 1 s. Therefore the con
-
verter is suitable for the application. The following two settings are possible:
Full load curr
82 A
or
110 A
Enable overload
Enabled
Overload current
180 %
or
134 %
Base current
100 %
or
75 %
Overload time
1 s
Pause time
5 s
n
ote
!
The percentages for
Overload current
and
Base current
are referred to
Full load curr
and
not to the converter rated current!
Summary of Contents for TPD32-EV-...-2B
Page 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Page 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
Page 373: ... Instruction manual 373 ...
Page 374: ... TPD32 EV 374 ...
Page 375: ... Instruction manual 375 ...
Page 376: ... TPD32 EV 376 ...
Page 377: ... Instruction manual 377 ...
Page 378: ... TPD32 EV 378 ...
Page 379: ... Instruction manual 379 ...
Page 380: ... TPD32 EV 380 ...
Page 381: ... Instruction manual 381 ...
Page 382: ... TPD32 EV 382 ...
Page 383: ... Instruction manual 383 ...
Page 384: ... TPD32 EV 384 ...
Page 385: ... Instruction manual 385 ...
Page 386: ... TPD32 EV 386 ...
Page 387: ... Instruction manual 387 ...
Page 388: ... TPD32 EV 388 ...
Page 389: ... Instruction manual 389 ...
Page 390: ... TPD32 EV 390 ...
Page 391: ... Instruction manual 391 ...
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Page 393: ... Instruction manual 393 ...
Page 394: ... TPD32 EV 394 ...
Page 395: ... Instruction manual 395 ...
Page 396: ... TPD32 EV 396 ...
Page 397: ... Instruction manual 397 ...
Page 398: ... TPD32 EV 398 ...
Page 399: ... Instruction manual 399 ...
Page 400: ... TPD32 EV 400 ...
Page 401: ... Instruction manual 401 ...
Page 402: ... TPD32 EV 402 ...
Page 501: ... Instruction manual 501 APPENDIX 3 ACCESSORIES A3 1 EAM Adapter Kit EAM1579 EAM1580 ...
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