Hi,
I found an old ESP300 controller that I am trying to get to work. The controller does not reply to any RS232 commands. I checked with a similar ESP300 that is known to work and same computer: no problems communicating.
After power on, it takes quite a long time to turn on the lights, and when it does, axis 1 is led is yellow and axis 2 and 3 are red. The controller does not have advanced front panel i.e.. It only has three leds for axis 1 to 3, keypad connector and a stop button.
I took a look inside and while starting up, leds D1 to D3 are off and D4 is on. After the lights appear in the front panel, D1 to D4 are all on.
I disconnected all driver modules and now D1 to D4 turn on almost immediately after powering on. However, after a while, the front panel lights up in a similar way i.e. axis 1 is led is yellow and axis 2 and 3 are red.
What does the yellow-red-red error mean? Can it be fixed somehow?
There are some jumpers inside, what is their function? Since I was not the original user of this box, I'd like to know what setting they should be in.
Thanks for all the help!
