Delta ASD-A2 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 which
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 panel-board
of the user manual. (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
follow 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 follow the instructions.
It indicates the absolute prohibited activity. It is possible to damage the product or
cannot be used due to malfunction if not follow the instructions.
Inspection
Please follow the instruction when using servo drive and servo motor, or it is possible

to cause fire or malfunction.
Installation
It is prohibited to expose the product with the environment which containing water,

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 100 Ω); 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
Revision February, 2017