228
AYK550-UH User’s Manual
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
Ground Fault Protection
AYK550 internal fault logic detects ground faults in the drive, motor, or motor cable.
This fault logic:
• Is NOT a personal safety or fire protection feature.
• Can be set to trigger only a warning using parameter 3017
EARTH
FAULT
.
• Could be tripped by leakage currents (input power to ground) associated with the
use of an optional RFI/EMC filter.
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 221.
Field Weakening Point
10…500 Hz
Switching Frequency
Selectable: 1, 4, or 8 kHz
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
R1
100 m
50 m
R2…R4
200 m
100 m
R5…R6
300 m
150 m
* Warning! Using a motor cable longer than specified in the
chart above may cause permanent damage to the drive.
Summary of Contents for AYK 550
Page 256: ...D1 AYK550 UH User s Manual Appendix D Appendix D Base Drive Drawing 205662 Drawings Fig 1...
Page 257: ...AYK550 UH User s Manual D2 Appendix D Base Drive w Fused Disconnect Drawing 205648 Fig 2...
Page 258: ...D3 AYK550 UH User s Manual Appendix D Base Drive w Non Fused Disconnect Drawing 205647 Fig 3...
