Allen-Bradley The PowerFlex 755 On-Machine, Руководство пользователя

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22 Rockwell Automation Publication 750-UM006C-EN-P - March 2022
Chapter 2 Prepare for Installation
• When using a shielded motor cable, the drain wire must be bonded to
chassis ground at the motor. The recommended motor connection must
use a shielded concentric connector. This connection provides 360
°
shielding.
Wiring
Wire in an industrial control application can be divided into three groups:
power, control, and signal. The following recommendations for physical
separation between these groups, are provided to reduce the coupling effect:
• Minimum spacing between different wire groups in the same tray must
be 16 cm (6 in.).
• Wire runs outside an enclosure must be run in conduit or have
shielding/armor with equivalent attenuation.
• Different wire groups must be run in separate conduits.
• Minimum spacing between conduits that contain different wire groups
must be 8 cm (3 in.).
Power Requirements Consider the power requirement and the construction of the circuits and their
connections to the system when planning the installation of the drive.
WARNING: Circumstances that can cause an explosion may exist, which may
lead to personal injury or death, property damage, or economic loss.
Incoming power requirements must be a delta-Wye solid ground neutral to
maintain the CE/UL certification. If the user supplied input power
distribution exceeds 20 times the drive rating kVa, additional impedance
must be supplied in the form of an input line reactor or isolation transformer.
Table 2 - Power Requirements
Condition Requirement
Short-circuit current rating Maximum short circuit rating 65,000 A RMS symmetrical
Voltage and power ratings
(1)
(1) All ratings to support continuous duty. There is no de-rate for duty cycle variations. All ratings are for normal duty except for
the variation that has 14 A Heavy-Duty rating.
400V AC, 3 PH, 50 Hz ratings:
• 8.7 A, 4 kW, Normal Duty
• 11.5 A, 5.5 kW, Normal Duty
• 15.4 A, 7.5 kW, Normal Duty
• 22 A, 11 kW, Normal Duty
480V AC, 3 PH, 60 Hz, ratings:
• 8 A, 5 Hp, Normal Duty
• 11 A, 7.5 Hp, Normal Duty
• 14 A, 10 Hp, Normal Duty
• 22 A, 15 Hp, Normal Duty
• 14 A, 10 Hp, Heavy Duty (only when Motor Type = M2)
Battery Factory-installed CR1220 lithium coin cell battery provides power
to the real-time clock (supplied). Preserves the clock setting in the
event power to the drive is lost or cycled. Approximate life is 4.5
years with drive unpowered, or lifetime if drive is powered.