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ASDA-B2 Servo System Quick Start Guide
This guide is intended as a quick start guide. On our website you can find also the full manual for the
DELTA ASDA-B2 AC servo system, use this when getting into details. This manual is only for when you
receive the parcel and want to make sure all is working. Fine-tuning of the system will need to be done
Assumptions: Author: Kevin Damen April 2013
- Using Delta ASDA-B2 system
- We assume you purchased a programming cable with the set
- In combination with USBCNC or other Step/Dir source (PLC)
- Using DamenCNC compatibility PCB
- Using standard wiring from DamenCNC or self made using DamenCNC procedures
- Basic knowledge of mechanics/electronics
Step 1: 220V Entry is different from the ASDA-B. The control and power circuit have separate inputs. Both need to be connected to 220V. Most common mistake is that only 1 of the 2 is connected, then the system will not work.
Step2: Test what happens when 230V is connected. With no other cables you should get the AL message. This means the encoder is not connected, which is the correct error message for this situation. Step 3 : Wiring of motor to drive (remover power first! And wait until discharge led is off)
First disconnect power before doing any wiring. Wait long enough that the discharge led is off. This could take several minutes.
Power Connection (Same as ASDA-B) Motor side Cable / Connectors Drive Red 1 U White 2 V Blue 3 W Green/Yellow 4 Connect to ground terminal of drive
Encoder Connection (Different but old cables from ASDA-B will work without making any changes, cables are made such that ASDA-B and ASDA-B2 are compatible) The ASDA-B2 uses a serial communication system so less cables could be used, but we attach the cables anyway) Motor side Cable / Connectors (PUR
Drive Pin Number
Terminal Symbol
- Pink 1 Reserved Black/Red Red 2 Reserved Black White 3 Reserved White Grey 4 T+ White/Red Green 5 T- Blue Blue 6 Ground
- 7 Ground Brown Brown 8 +5V
- Yellow 9 Reserved Step 4 : With all cables connected, power on again You should get alarm AL
If you get error AL011, then something is wrong with encoder cabling or its not connected. Check the wiring. If connected as above the AL011 error should disappear and the AL013 alarm should appear
Step5: Change Emergency Stop and Limits parameter in drive
AL013 means that the Emergency switch stop is active Some parameters need to be changed
Download the software http://damencnc.com/en/components/motors-and-drivers/ac-servo and click more info on the drive you have under the tab software you should find the latest version of the software. (4.08.05 at the time of writing)
Edit parameters for Digital Input 6 7 8
Disable these inputs by setting parameter to 000
Write the parameters to the drive
(we assume you don’t need the Emergency stop in the drive, and also not the limits) Of course for safety reasons you should obviously have these in your systems. Step 6: Changing the electronic gear ratio With this fault cleared it should be possible to move the machine It will be very slow. The encoder has 160,000 pulses/rev so when commanding from USBCNC the movement will be barely visible.
The solution is to reduce the amount of steps needed for one revolution. This is done with the Electronic Gear ratio Parameter P1-44 and P1-45 determine this ratio Standard its set to P1-44 16 P1-45 10
To get less steps/rev use for example P1-44 1600 P1-45 10 Now you will have 1000 steps/rev of the servo motor.
Step 7: Tuning the system All we have done above is only to make the first steps with the system. Many people will leave it with these settings and that’s a pity. To really get the performance out of a servo system tuning needs to be done. There are Auto Tuning functions in the software, but be very careful with them. Test running could cause a collision or damage if parameters are incorrectly set.
To really get good performance make sure the backlash in your system is zero to none, otherwise you will have problems with tuning of the drives. The system will oscillate/vibrate in the backlash.
Before doing any auto tuning make sure Estop and end of stroke switches are working. It is not uncommon to have an unstable system during testing.
