High Performance‧Precise Position 
Control‧High Resolution AC Servo Drive for 
Communication Network Applications 
Instruction Sheet 
 General Precautions 
This instruction sheet will be helpful in the installation, wiring, inspection, and operation of Delta ASDA-A2 
series AC servo drive and ECMA series servo motor. Before using the product, please read this instruction sheet 
to ensure correct use. You should thoroughly understand all safety precautions before proceeding with the 
installation, wiring and operation. If you do not understand please contact your local Delta sales representative. 
Place this instruction sheet in a safe location for future reference. Please observe the following precautions:   
Do not use the product in a potentially explosive environment. 
Install the product in a clean and dry location free from corrosive and inflammable gases or liquids. 
Do not connect a commercial power supply to the U, V, W terminals of motor. Failure to observe this precaution 
will damage either the Servo motor or drive. 
Ensure that the motor and drive are correctly connected to a ground. The grounding method must comply 
with the electrical standard of the country (Please refer to NFPA 70: National Electrical Code, 2005 Ed.). 
Do not disconnect the AC servo drive and motor while the power is ON. 
Do not attach, modify or remove wiring when power is applied to the AC servo drive and motor. 
Before starting the operation with a mechanical system connected, make sure the emergency stop 
equipment can be energized and work at any time. 
Do not touch the drive heat sink or the servo motor during operation. Otherwise, it may result in serious 
personnel injury. 
Further information on the AC servo drive and motor can be obtained from the manual. You can download 
the manual via the link http://www.delta.com.tw/industrialautomation/ above in PDF format. 
The content of this instruction sheet may be revised without prior notice. Please consult our distributors or 
download the most updated version at http://www.delta.com.tw/industrialautomation/. 
 
 Safety Precautions       
Carefully note and observe the following safety precautions when receiving, inspecting, installing, 
operating, maintaining and troubleshooting. The following words, DANGER, WARNING and STOP are used to 
mark safety precautions when using the Delta’s servo product. Failure to observe these precautions may void the 
warranty! 
ASDA-A2 series drives are high-resolution, open type servo drives and must be installed in an NEMA 
enclosure such as a protection control panel during operation to comply with the requirements of the international 
safety standards. They are provided with precise feedback control and high-speed calculation function 
incorporating DSP (Digital Signal Processor) technology, and intended to drive three-phase permanent magnet 
synchronous motors (PMSM) to achieve precise positioning by means of accurate current output generated by 
IGBT (Insulated Gate Bipolar Transistor). 
ASDA-A2 series drives can be used in industrial applications and for installation in an end-use enclosure 
that do not exceed the specifications defined in the ASDA-A2 series user manual (Drives, cables and motors are 
for use in a suitable enclosure with a minimum of a UL50 type 1 or NEMA 250 Type 1 rating). 
Unpacking Check 
 
Please ensure that both the servo drive and motor are correctly matched for size (power rating). 
Failure to observe this precaution may cause fire, seriously damage the drive / motor or cause 
personal injury. 
Installation 
 
Do not install the product in a location that is outside the stated specification for the drive and motor. 
Failure to observe this caution may result in electric shock, fire, or personal injury. 
Wiring 
 
Connect the ground terminals to a class-3 ground (Ground resistance should not exceed 100Ω). 
Improper grounding may result in electric shock or fire. 
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. 
Ensure that all scr
ews, 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. 
In order to prevent fire hazard and accidents, please form the wiring by following the cable 
specifications outlined in this quick start.   
Operation 
 
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.
Ensure that the emergency stop equipment or device is connected and working correctly before 
operating the motor that is connected to a mechanical system. 
 
 
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. 
 
 
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). 
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. 
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. 
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 
 
Do not touch any internal or exposed parts of servo drive and servo motor as electrical shock may 
result. 
Do not remove the operation panel while the drive is connected to an electrical power source 
otherwise electrical shock may result. 
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. 
Do not disassemble the servo drive or motor as electric shock may result. 
Do not connect or disconnect wires or connectors while power is applied to the drive and motor. 
Only qualified personnel who have electrical knowledge should conduct maintenance and inspection.
Ensure that the “Charge” indicator ceases when performing any maintenance, inspection or repairing.
Main Circuit Wiring   
 
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. 
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.). 
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. 
 
 
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. 
Main Circuit Terminal Wiring 
 
  Please perform the wiring after the terminal blocks are all removed from the drive. 
  Insert only one wire into one terminal on the terminal block. 
 
When inserting wires, please ensure that the conductors are not shorted to adjacent terminals 
or wires. 
  Ensure to double check the wiring before applying power to the drive. 
 
 Servo Drive and Servo Motor Combinations 
Power  Servo Drive  Servo Motor 
750W  ASD-A2-0743- 
ECMA-J10604S(S=14mm) 
ECMA-J10807S(S=19mm) 
1000W  ASD-A2-1043- 
ECMA-K11310S(S=22mm) 
ECMA-L11308S(S=22mm) 
1500W  ASD-A2-1543- 
ECMA-J11010S(S=22mm) 
ECMA-K11315S(S=22mm) 
ECMA-M11309S(S=22mm) 
2000W  ASD-A2-2043- 
ECMA-J11020S(S=22mm) 
ECMA-K11320S(S=22mm) 
ECMA-K11820S(S=35mm) 
3000W  ASD-A2-3043- 
  ECMA-L△1830S(S=35mm) 
ECMA-J113304(4=24mm) 
4500W  ASD-A2-4543- 
ECMA-L11845S(S=35mm) 
5500W  ASD-A2-5543- 
ECMA-L118553(3=42mm) 
7500W  ASD-A2-7543- 
ECMA-L118753(3=42mm) 
11kW  ASD-A2-1B43- 
ECMA-L1221B3(3=42mm) 
15kW  ASD-A2-1F43- 
ECMA-L1221FS(S=55mm) 
 
1) The boxes () at the ends of the servo drive model names are for optional configurations 
(Full-closed loop, CANopen and extension DI port). For the actual model name, please 
refer to the ordering information of the actual purchased product. 
2) The triangle (△) in the servo motor model names are for encoder type. △=1, incremental
20-bit. △=2, incremental, 17-bit.   
3) The boxes () in the servo motor model names are for optional configurations (keyway, 
brake and oil seal). 
 
 Cable Specifications for Servo Drive 
Power Cable - Wire Gauge mm2 (AWG) 
Servo Drive and Servo Motor 
DC24V, DC0V
R, S, T  U, V, W 
P , C 
ECMA-J10604S 
ASD-A2-0743-
ECMA-J10807S 
0.82(AWG18)
0.82(AWG18)
2.1(AWG14)
ECMA-K11310S 
ASD-A2-1043-
ECMA-L11308S 
ECMA-J11010S 
ECMA-K11315S ASD-A2-1543-
ECMA-M11309S 
ECMA-J11020S 
ECMA-K11320S 
ASD-A2-2043-
ECMA-K11820S 
0.82(AWG18)
1.3(AWG16)
2.1(AWG14)
ECMA-L△1830S
ASD-A2-3043-
ECMA-J113304 
1.3(AWG16)
1.3(AWG16)
2.1(AWG14)
ASD-A2-4543-
ECMA-L11845S 
ASD-A2-5543-
ECMA-L118553 
2.1(AWG14)
3.3(AWG12)
3.3(AWG12)
ASD-A2-7543-
ECMA-L118753 
3.3(AWG12)
5.3(AWG10)
3.3(AWG12)
ASD-A2-1B43-
ECMA-L1221B3 
5.3 (AWG10)
13.3(AWG6)
10.5(AWG7)
ASD-A2-1F43-
ECMA-L1221FS 
1.3(AWG16)
6.6(AWG9)
13.3(AWG6)
10.5(AWG7)
 
Encoder Cable - Wire Gauge mm2 (AWG) 
Servo Drive 
Wire Size  Core Number  UL Rating  Standard Wire Length
ASD-A2-0743-
ASD-A2-1043-
ASD-A2-1543-
ASD-A2-2043-
ASD-A2-3043-
ASD-A2-4543-
ASD-A2-5543-
ASD-A2-7543-
ASD-A2-1B43-
ASD-A2-1F43-
0.13 (AWG26)  10 core (4 pair)  UL2464  3m (9.84ft.) 
 
1) The boxes () at the ends of the servo drive model names are for optional configurations 
(Full-closed loop, CANopen and extension digital input port). For the actu
please refer to the ordering information of the actual purchased product. 
2) The triangle (△) in the servo motor model names are for encoder type. △
20-bit. △=2, incremental, 17-bit.. 
3) The boxes () in the servo motor model names are for optional configurations (keyway, 
brake and oil seal). 
4) Please use shielded twisted-pair cables for wiring to prevent voltage coupling and 
eliminate electrical noise and interference. 
5) The shield of shielded twisted-pair cables should be connected to the SHIELD end 
(terminal marked ) of the servo drive. 
6)    In order to prevent fire hazard and accidents, please form the wiring by following the 
cable specifications outlined above. 
 Installation and Storage Conditions 
The product should be kept in the shipping carton before installation. In order to retain the warranty 
coverage, the AC drive should be stored properly when it is not to be used for an extended period of time. Some 
storage suggestions are: 
Store in a clean and dry location free from direct sunlight. 
Store within an ambient temperature range of -20°C to +65°C (-4°F to 149°F). 
Store within a relative humidity range of 0% to 90% and non-condensing. 
Do not store in a place subjected to corrosive gases and liquids. 
Correctly packaged and placed on a solid surface. 
Do not mount the servo drive or motor adjacent to heat-radiating elements or in direct sunlight. 
Do not mount the servo drive or motor in a location subjected to corrosive gases, liquids, or airborne dust or 
metallic particles. 
Do not mount the servo drive or motor in a location where temperatures and humidity will exceed specification. 
Do not mount the servo drive or motor in a location where vibration and shock will exceed specification. 
Do not mount the servo drive or motor in a location where it will be subjected to high levels of electromagnetic 
radiation. 
 
 Installation Note and Minimum Clearances 
Installation Note: 
Incorrect installation may result in a drive malfunction 
or premature failure of the drive and or motor. Please 
follow the guidelines in this instruction when installing 
the servo drive and motor.   
The AC servo drive should be mounted perpendicular 
to the wall or in the control panel. 
In order to ensure the drive is well ventilated, ensure 
that the all ventilation holes are not obstructed and 
sufficient free space is given to the servo drive. 
Do not install the drive in a horizontal position or 
malfunction and damage will occur.   
 
Minimum Clearances: Install a fan to increase ventilation to avoid ambient temperatures that exceed the 
specification. When installing two or more drive adjacent to each other please follow the clearances as shown in 
the following diagram. 
750W ~ 1.5kW models: