224
AYK550-UH User’s Manual
Technical Data
Input Power Connections
Warning! Do not operate the drive outside the nominal input line voltage
range. Over-voltage can result in permanent damage to the drive.
Input Power Specifications
Branch Circuit Protection
The AYK550 does not include a disconnect device. A means to disconnect input
power must be installed between the AC power source and the AYK550. This branch
circuit protection must:
• Be sized to conform to applicable safety regulations, including, but not limited to,
both National and local electrical codes.
• Be locked in the open position during installation and maintenance work.
The disconnect device must not be used to control the motor. Instead use the control
panel, or commands to the I/O terminals for motor control. Cycling the disconnect
device cycles power to the drive’s DC capacitors. These capacitors have a
maximum limit of 5 cycles in ten minutes.
Fuses
The following tables provide fuse recommendations for short circuit protection on the
drive’s input power. These recommendations are not requirements if branch circuit
protection is otherwise provided per NEC. UL508A manufacturers are not required to
use the recommended fuses for the purpose of UL listing a panel that includes the
AYK550.
Input Power Connection Specifications
Voltage (
U
1
)
208/220/230/240 VAC 3-phase (or 1-phase)
+10% -15% for
230 VAC units.
400/415/440/460/480 VAC 3-phase
+10% -15% for 400 VAC units.
Prospective short-
circuit current
(IEC 629)
Maximum allowed prospective short-circuit current in the supply is 100 kA
in a second providing that the drive’s input power is protected with
appropriate fuses. US: 100,000 AIC.
Note!
Base drive only or drive with fused DBC.
Frequency
48…63 Hz
Imbalance
Max.
± 3% of nominal phase to phase input voltage
Fundamental power
factor (cos
ϕ
)
0.98 (at nominal load)
Cable Temperature
Rating
90 °C (194 °F) rating minimum.
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...
