Delta ASD-A2-0121 Series User Manual page 3

Preface
Safety Precautions
ASDA-A2 series is the high resolution and open type servo drive. It should be installed in a
shielded control box during operation. This servo drive uses precise feedback control and the
digital signal processor with high-speed calculation function to control the current output generated
by IGBT so as to operate three-phase permanent magnet synchronous motors (PMSM) and to
achieve precise positioning.
ASDA-A2 is applicable on industrial application and is suggested to be installed in the distribution
board. (Servo drives, wire rod, and motors all should be installed in the environment which
complies with the minimum requirement of UL Level 1.)
Pay special attention to the following safety precautions anytime during inspection, installation,
wiring, operation, and examination.
The symbol of danger, warning and stop represent:
It indicates the potential hazards. It is possible to cause severe injury or fatal harm if not
following the instructions.
It indicates the potential hazards. It is possible to cause minor injury or lead to serious
damage of the product or even malfunction if not following the instructions.
It indicates the absolute prohibited activity. It is possible to damage the product or
cannot be used due to malfunction if not following the instructions.
Inspection
Please follow the instruction when using servo drive and servo motor, or it is possible
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to cause fire or malfunction.
Installation
It is prohibited to expose the product with the environment containing vapor,
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corrosive gas, inflammable gas, etc. Or it is possible to cause electric shock or fire.
Wiring
Please connect the ground terminal to class-3 ground system (under 100Ω); poor

grounding may result in electric shock or fire.
Do not connect the three-phase source to the motor output terminal U, V and W. Or it

is possible to cause personnel injury or fire.
Please tighten the screws of the power and motor output terminal. Or it is possible to

cause fire.
Please connect wiring according to the wire rod in order to prevent any danger.
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ASDA-A2