Küenle KFU 210 Series, Quick Start Manual

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KFU 210- / 410-
55
8.12 Size 8 KFU 610 (160 to 400 kW, 690 V)
Type
KFU 610 -180 -230 -280 -350 -400 -450
Size 8
Output motor side
Recommended motor shaft power P kW 160 200 250 315 355 400
Output current I A
eff.
180 230 280 350 400 450
Long-term overload current (60 s) 1) I A
eff.
270 350 420 530 600 675
Short-term overload current (1 s) 2)
I A
eff.
330 420 510 630 720 750
Output voltage U V
eff.
Maximum input voltage, three-phase
Protection - - Short circuit / earth fault proof
Rotary field frequency f Hz ±500 Hz 3)
Switching frequency f kHz 2, 4, 8
4)
Output, braking resistor (external)
Min. braking resistance R Ω 3,00 3,00 3,00 1,80 1,80 1,80
Recommended braking resistor
(U
dBC
= 770 V)
R Ω 5,00 5,00 5,00 3,00 3,00 3,00
Input, mains side
Power supply current 6) I A 160 200 250 320 360 410
Mains voltage 7) U V 690 (for UL reduced: 600)
Mains frequency f Hz 50 (60)
Fuses 8) I A 250 315 350 450 500 550
Mechanical
Dimensions HxWxD mm 1067 x 439 x 375
Weight approx. m kg 120 120 120 140 140 140
Ingress protection rating - - IP20 (EN60529)
Connection terminals A mm 2 up to 2 x 240
Form of assembly - - vertical
Ambient conditions
Energy dissipation (2 kHz
switching frequency)
P W 3200 3950 4500 5500 6250 6900
Coolant temperature T
n
°C -25 … 45 (3K3 DIN IEC 721-3-3)
Storage temperature T
L
°C -25 ... 55
Transport temperature T
T
°C -25 ... 70
Rel. humidity - % 15 ... 85, not condensing
If required by the customer, the switching frequency may be increased if the output current is reduced at the same time.
Comply with the applicable standards and regulations for this operating point.
Output current
9)
Frequency inverter nominal power
Switching frequency
2 kHz 4 kHz 8 kHz
160 kW 180 180 180
200 kW 230 230 230
250 kW 280 280 280
315 kW 350 350 350
355 kW 400 400 400
400 kW 450 436 410
1) Power reduction with torsional frequencies below 15 Hz
2) Only with torsional frequencies above 15 Hz
3) Depending on switching frequency
4) Reduction of switching frequency possible on certain conditions
5) As an option, the frequency inverter of this size is available without internal brake transistor
6) Rated value with recommended motor power, 690V mains voltage and mains inductance UK=4%
7) Note that, in addition to AC 3x690V connection, AC 3x400V connection is also required, see Chapter 4.3.
8) Semiconductor fuses recommended (e.g. Bussmann Type 170M)
9) Maximum current in continuous operation