Nidec LEROY-SOMER, Installation Manual

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GENERAL INFORMATION
Installation guide Powerdrive MD Smart Equipment
5704 en - 2021.10 / b
525V to 690 V 3-phase supply
Switching frequency = 3 kHz - ambient temperature ≤ 40°C - altitude ≤ 1000 m.
Rating
Heavy duty Normal duty
Imax (3s)
(A)
Imax (60s)
(A)
Pout at 525
V
(HP)
(1)
Pout at 690V
(kW)
(1)
Ico
(A)
Pout at 525
V
(HP)
(1)
Pout at 690V
(kW)
(1)
Ico
(A)
150TH 110 110 115 132 132 143 195 175
180TH
132 132 143 160 150 172 230 211
220TH 160 150 195 250 200 248 315 286
340TH 250 250 295 315 350 375 475 432
430TH 315 350 359 400 400 456 580 526
570TH
400 450 406 500 500 516 648 594
680TH 500 500 572 630 700 728 922 838
860TH 630 700 697 675 800 886 1125 1020
1140TH 675 900 787 850 1050 1000 1257 1152
1290TH
850 1050 1034 1000 1200 1315 1670 1515
1710TH 1000 1400 1169 1350 1600 1485 1866 1711
2280TH 1350 1800 1542 1500 2000 1960 2462 2257
2850TH 1500 2250 1928 1800 2500 2450 3110 2851
(1) Motor winding voltage
Frequency
(Hz)
% Ico or
% Imax (60 s)
1.4.3 - Derating at low frequency
Measuring the temperature of the power bridges in
conjunction with thermal modelling of the IGBTs ensures
protection against overheating of the Powerdrive MD Smart .
At low output (motor) frequencies, IGBT modules are subject
to significant temperature cycling, which can reduce their life.
To prevent this risk, the curve opposite indicates the derating
for output currents Ico and Imax when operating at low motor
frequencies in continuous operation.
1.4.4 - Standard equipment
The Powerdrive MD Smart is equipped as standard with a
line choke and high-speed fuses.
In some cases, after a specific design study the line choke
may be omitted. The inductance value of the transformer
supplying the equipment may act as a line choke.
1.4.5 - Derating according to the temperature
and switching frequency
See the derating tables on the next pages.
For intermediate switching frequencies (3.5 - 4.5 - 5.5 kHz),
the available current value will be the average of the upper
frequency and lower frequency currents.