Delta DVP — 12.5 Communication between PLC and Delta ASD-A Series AC Servo Drive

12. Communication Design Examples z Showing the status of AC servo drive through indicators by the output points DO1~DO3. Parameter Settings for ASDA Series AC Servo Drive: Ъ If AC servo drive can not run normally due to improper parameters, users can set P2-08 = 10 (factory defaults) and then set the parameters according to the above table. z Operation Steps: Power normal DO1 Start normal DO2 DI1 SON Servo ON 1. Set the parameters of AC servo drive then power up again. If no error occurred, “power normal” indicator (DO1) will be ON. 2. When Power normal indicator is ON, turn on SON (servo ON) to enable DI1. If no error occurred, “Start normal” indicator (DO2) will be ON. 3.

Turn on “SPD0”, the speed set in parameter P1-09 will be enabled. Turn on “SPD1”, and the speed set in parameter P1-10 will be enabled. Turn on both “SPD0” and “SPD1”, the speed set in parameter P1-11 will be enabled. Devices: Device Function M0 Executing MODRD instruction to read the rotation speed of motor M1 Execute MODWR instruction DVP-PLC Application Examples 12-19 Parameter Set value Explanation P1-01 2 Control Mode and Output Direction P1-39 1500 Target Motor Speed: 1500rpm. P2-10 101 Digital Input Terminal 1 (DI1) P2-12 114 DI3: the input terminal of SPD0 P2-13 115 DI4:

the input terminal of SPD1 P2-15 0 No function P2-16 0 No function P2-17 0 No function P2-18 101 DO1 = ON if no error occurred after power up P2-19 102 DO2 = ON if no error occurred after servo started P2-20 104 DO3 = ON when target speed reached P3-00 1 Communication Address Setting P3-01 1 Transmission Speed, Baud rate: 9600 P3-02 1 MODBUS ASCII mode. Data format: (7, E, 1) P3-05 2 RS-485 communication format P3-06 0 Digital Input Communication Function