9
0
5
10
15
20
20 %
40 %
60 %
80 %
100 %
120 %
140 %
GENERAL INFORMATION
POWERDRIVE MD2CS Installation guide
4946 - 2017.12 / c
en
525 V to 690 V 3-phase supply
Switching frequency = 3 kHz - ambient temperature ≤ 40°C (35°C with IP54 option) - altitude ≤ 1000 m.
Rating
POWERDRIVE MD2CS
Heavy duty
Normal duty
Imax (60s)
(A)
Pout at 575 V
(HP)
(1)
Pout at 690 V
(kW)
(1)
Ico
(A)
Pout at 575 V
(HP)
(1)
Pout at 690 V
(kW)
(1)
Ico
(A)
270TH
200
200
220
250
250
280
308
340TH
250
250
270
300
300
340
378
400TH
300
300
335
400
400
415
465
500TH
400
400
390
500
500
470
545
(1) Motor winding voltage
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
The Powerdrive MD2CS is intended to be used with a line reactor connected on terminals L1, L2, L3 (see § 3.1.3)
Line reactor
Network 400V 50Hz
or 460V 60Hz
POWERDRIVE MD2CS ratings
60T
75T
100T
120T
150T
180T
220T
270T
340T
400T
470T
570T
Minimum inductance (mH)
0,26
0,26
0,26
0,26
0,19
0,13
0,078
0,078
0,055
0,055
0,045
0.035
Nominal Current (A)
135
135
200
200
230
280
460
460
650
650
800
912
Line reactor
Network 525V to 690V
50 Hz or 60Hz
POWERDRIVE MD2CS ratings
270TH
340TH
400TH
500TH
Minimum inductance (mH)
0,21
0,21
0,14
0,14
Nominal Current (A)
340
340
480
480
With the minimum inductance values of the above table the total current harmonic distortion (THD) on the line feeding the drive
is less than 35% (normal duty use). If a lower current harmonic level is requested, MD2CS 340T to 570T and MD2CS 270TH to
500TH offer the possibility to insert an additional Dc choke between terminals Lc1 and Lc2. In normal use Lc1 and Lc2 need to be
linked by the cables included in the drive package.
1.4.4 - Surge protection
For electrical systems that present high overvoltage transients, surge protection devices have to be connected between each line
phases and the ground as recommended in section 3
Protection device characteristics:
• Nominal voltage : 550V
• Minimum energy : 300 Joules
• Nominal unloaded current : 15 kA
