ABB RDNA-01 Bedienungsanleitung Seite 315

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ACH550-UH User’s Manual 1-311
Technical data
Motor connections
WARNING! Never connect line power to the drive output terminals: U2, V2 or W2.
Line voltage applied to the output can result in permanent damage to the unit. If
frequent bypassing is required, use mechanically interlocked switches or contactors.
WARNING! Do not connect any motor with a nominal voltage less than one half of
the drive’s nominal input voltage.
WARNING! Disconnect the drive before conducting any voltage tolerance (Hi-Pot)
test or insulation resistance (Megger) test on the motor or motor cables. Do not
conduct these tests on the drive.
Motor connection specifications
Motor Connection Specifications
Voltage (U
2
) 0…U
1
, 3-phase symmetrical, U
max
at the field weakening point
Frequency 0…500 Hz
Frequency Resolution 0.01 Hz
Current See Ratings on page 1-299.
Field Weakening Point 10…500 Hz
Switching Frequency
Selectable: 1, 4, 8, or 12 kHz
(1, 4, or 8 kHz for 600 V, R6 frame size, that is for
ACH550-xx-077A-6 … ACH550-xx-144A-6)
Cable Temperature Rating 90 °C (194 °F) rating minimum.
Maximum Motor Cable
Length
Frame Size
Max. Motor Cable Length*
f
sw
= 1 or 4 kHz f
sw
= 8 kHz or 12 kHz
R1 100 m
330 ft 100 m 330 ft
R2 (most)
R6 (600 V)
200 m
100 m
650 ft
330 ft
100 m
100 m
330 ft
330 ft
R3…R4 200 m
650 ft 100 m 330 ft
R5…R6 300 m
980 ft 150 m 490 ft
R7…R8 300 m
980 ft Does not apply
* WARNING! Using a motor cable longer than specified in the
chart above may cause permanent damage to the drive.
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