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LEROY-SOMER
4946 - 2013.07 / a
POWERDRIVE MD2CS
9
0
5
10
15
20
20 %
40 %
60 %
80 %
100 %
120 %
140 %
en
InstallatIon and maIntenance
Chassis-mounted variable speed drive
GeneRal InFoRmatIon
525 V to 690 V 3-phase mains supply
Switching frequency = 3 kHz - ambient temperature ≤ 40°C - altitude ≤ 1000 m.
POWERDRIVE MD2CS
rating
Heavy duty
Normal duty
Imax (60 s)
(A)
Pout at 575 V
(kW)
Pout at 690 V
(kW)
Ico
(A)
Pout at 575 V
(kW)
Pout at 690 V
(kW)
Ico
(A)
270TH
160
200
220
200
250
280
308
340TH
200
250
270
250
315
340
378
400TH
250
315
330
315
400
415
465
500TH
315
400
390
400
450
480
545
1.4.2 - Derating at low frequency
measuring the temperature of the power bridges in
conjunction with thermal modelling of the IGBts protects the
POWERDRIVE MD2CS
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.
Frequency (Hz)
% Ico or
% Imax (60s)
1.4.3 - Line reactor
a line reactor must be connected on terminals l1, l2 and l3 of PoWeRdRIVe md2cs.
Line reactor
Network 400V 50Hz
or 460V 60Hz
POWERDRIVE MD2CS ratings
60T
75T
100T
120T
150T
180T
220T
270T
340T
400T
470T
Minimum inductance (mH)
0,26
0,26
0,26
0,26
0,19
0,13
0,078
0,078
0,06
0,06
0,047
Nominal Current (A)
135
135
200
200
230
280
460
460
630
630
790
Line reactor
Network 525V à 690V 50 Hz
or 60Hz
POWERDRIVE MD2CS ratings
270TH
340TH
400TH
500TH
Minimum inductance (mH)
0,19
0,21
0,14
0,14
Nominal Current (A)
230
340
470
470
1.4.4 - Surge protection
For installations suceptibles to present high energy transient surges, surge protection module with the following caracteristics must
be connected between the phases l1, l2 ans l3 of the PoWeRdRIVe md2cs (see §3), in series with 400V 100a fuses :
• nominal voltage : 550V
• minimum energy : 300 Joules
• nominal unloading current (8/20)µs : 15 ka
• maximum unloading current (8/20)µs : 30 ka