NSK MEGATHRUST ESA-LYB2T15-21, Руководство пользователя

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— 6-5 —
6.4.1. Connecting Power
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The main power AC line input supplies the power to the high voltage supply for driving the
Motor.
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The control power AC line input supplies power to the internal low voltage switching power
supply for the logic and signal circuits. The internal switching power supply will operate from
any single phase AC voltage from 90 up to 240 volts.
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The AC power for the control power input may be obtained from the same supply that is
connected to the main power AC line input.
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The AC line power consumption varies with the Motor size, the Driver Unit type and the load.
The Megathrust Motor System requires very little power when it is moving at zero or low speed,
even at maximum torque output. The power consumption is highest when the Motor is
producing significant amounts of force at elevated speed, more than 20% of the maximum rated
speed.
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Use 2.0 mm
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(14AWG) or larger wire with heat-proof vinyl for power line.
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The electrical noise from outside sources and from the System itself can interfere with proper
operation. The protection from electrical noise must be designed into the installation. Use a
line noise filter on the AC supply. A suitable noise filter may be obtained from NSK. If you
supply your own, it should meet these requirements in Table 6-3.
Table 6-2: Noise Filter Requirement
Driver Unit AC Line Noise Filter Voltage Rating Current Rating
220VAC, 3ø
220VAC, 1ø
110VAC, 1ø
250V AC/DC 15A AC/DC
Control Power 250V AC/DC 5A AC/DC
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Do not tie wrap the input and output sides of the AC line filter together, or place them in close
proximity. Do not tie wrap the ground wires with signal wires.
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The noise filter must be installed on control power AC line, separately from the main power line.
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Do not place the main power AC line input supplies and signal wires in close proximity. Do not
tie wrap them and not put in the same duct.
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The Driver Unit and the noise filters must be close to each other and wiring must be of minimal
length. Do not insert contacts like a magnetic switch or a relay between them.
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Install a circuit breaker on the main power AC line. When the power is turned “ON”, an inrush
current to the circuit will occur because of the capacitive load connected to the main power
supply circuit.
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When inserting contacts into the power supply circuit, the specification of the contact should be
greater or equal to ones in the following table:
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