Hello everyone, I have some problems with an old S3 M93 controller, after power on the led on Dsqc 230 board is turn red ,also the lights in the 2 input board and the sensor board are red,the TP shows "PRog unit communication fault" no LEDs in the dsqcc 241 board are turned on. I try to test mode with the test and init button on the dsqc 230 board but have no results.I am looking for help , how can I diagnose the problem, is there anyone that knows this old robot.Thank you
ABB S3 M93
- Enio
- Thread is Unresolved
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With the green LEDs off on the DSQC241, it seems like the 220VAC going to the DSQC241 is missing. Check the fuses on the transformer unit on the back wall of the controller.
If there is a red light on the CPU, I assume the DSQC241 has voltage since it provides the 5VDC to the CPU.
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Hello , thanks for the advise,
Should be any light turn on on the Dsqc 241 board , in the power unit all the lights are red, in the Dsqc 230 board the llights are red to.
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I uploaded the M92 Service Manual to the manual section as the DSQC241 and the DSQC228 shown in the picture above are for M91A & M92 controllers.
Pages 58-62,107, 183, 192 are related to the DSQC241 power supply.
What part numbers are listed on the DSQC230 CPU EPROMs? The EPROMs are on the bottom left of the CPU component side.
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