9
0
5
10
15
20
20 %
40 %
60 %
80 %
100 %
120 %
140 %
GENERAL INFORMATION
Powerdrive MD2SL Installation and maintenance
5077 - 2017.12 / b
en
525 V to 690 V 3-phase mains supply
Switching frequency = 3 kHz - ambient temperature ≤ 40°C - altitude ≤ 1000 m.
Rating
Heavy duty
Normal duty
Imax (60 s)
(A)
Pout @690V
(1)
(kw)
Pout @575V
(1)
(HP)
Ico
(A)
Pout @690V
(1)
(kw)
Pout @575V
(1)
(HP)
Ico
(A)
340TH
250
250
270
315
300
340
380
400TH
315
300
335
400
400
415
470
500TH
400
400
390
450
500
500
550
600TH
450
450
490
550
600
580
690
750TH
550
600
615
700
700
780
860
900TH
700
700
720
850
900
940
1010
1200TH
850
900
900
1100
1000
1090
1260
1500TH
1100
1000
1075
1300
1250
1410
1510
1800TH
1300
1250
1355
1600
1500
1630
1900
(1) Motor winding voltage
Frequency
(Hz)
% Ico or
% Imax (60 s)
1.3.3 - Derating at low frequency
Measuring the temperature of the power bridges in
conjunction with thermal modelling of the IGBTs protects the
Powerdrive MD2SL
against overheating.
At low motor frequencies. IGBT modules are subject to tough
temperature cycling. which may reduce their life time. To
prevent this risk. the curve opposite indicates the derating for
output currents
Ico
and
Imax
when operating at low motor
frequency in continuous operation.
