888 Digital ASDA-A2 User Manual
Page 3
English
-2
Wiring
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Connect the ground terminals to a class-3 ground (Ground resistance should not exceed 100
).
Improper grounding may result in electric shock or fire.
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Do not connect any power supplies to the U, V, W terminals. Failure to observe this precaution may
result in serious injury, damage to the drive or fire.
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Ensure that all screws, connectors and wire terminations are secure on the power supply, servo drive
and motor. Failure to observe this caution may result in damage, fire or personal injury.
Operation
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Before starting operation with a mechanical system connected, change the drive parameters to match
the user-defined parameters of the mechanical system. Starting the operation without matching the
correct parameters may result in servo drive or motor damage, or damage to the mechanical system.
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Ensure that the emergency stop equipment or device is connected and working correctly before
operating the motor that is connected to a mechanical system.
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Do not approach or touch any rotating parts (e.g. shaft) while the motor is running. Failure to observe
this precaution may cause serious personal injury.
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In order to prevent accidents, the initial trial run for servo motor should be conducted under no load
conditions (separate the motor from its couplings and belts).
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For the initial trial run, do not operate the servo motor while it is connected to its mechanical system.
Connecting the motor to its mechanical system may cause damage or result in personal injury during
the trail run. Connect the servo motor once it has successfully completed a trail run.
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Caution: Please perform trial run without load first and then perform trial run with load connected.
After the servo motor is running normally and regularly without load, then run servo motor with load
connected. Ensure to perform trial run in this order to prevent unnecessary danger.
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Do not touch either the drive heat sink or the motor during operation as they may become hot and
personal injury may result.
Maintenance and Inspection
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Do not touch any internal or exposed parts of servo drive and servo motor as electrical shock may
result.
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Do not remove the operation panel while the drive is connected to an electrical power source otherwise
electrical shock may result.
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Wait at least 10 minutes after power has been removed before touching any drive or motor terminals or
performing any wiring and/or inspection as an electrical charge may still remain in the servo drive and
servo motor with hazardous voltages even after power has been removed.
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Do not disassemble the servo drive or motor as electric shock may result.
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Do not connect or disconnect wires or connectors while power is applied to the drive and motor.
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Only qualified personnel who have electrical knowledge should conduct maintenance and inspection.
Main Circuit Wiring
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Install the encoder cables in a separate conduit from the motor power cables to avoid signal noise.
Separate the conduits by 30cm (11.8inches) above.
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Use multi-stranded twisted-pair wires or multi-core shielded-pair wires for signal, encoder (PG)
feedback cables. The maximum length of command input cable is 3m (9.84ft.) and the maximum length
of encoder (PG) feedback cables is 20m (65.62ft.).
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As a charge may still remain in the drive with hazardous voltages even after power has been removed,
be sure to wait at least 10 minutes after power has been removed before performing any wiring and/or
inspection.
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It is not recommended to frequently power the drive on and off. Do not turn the drive off and on more
than once per minute as high charging currents within the internal capacitors may cause damage.