Heidenhain 'Relay ext.DC Voltage Missing' error
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bradders
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Heidenhain 'Relay ext.DC Voltage Missing' error
My Triac Heidenhain is showing a 'Relay ext.DC Voltage Missing' error
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bradders
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This error message 'Relay ext.DC Voltage Missing' is coming on or cannot be cleared if the Emergency Circuit is open at any position (this can be a limit switch or any emergency switch,please see the machine diagram).
You have to check this circuit (e.g. you can make a shortcut between 'Em.circuit output' and 'Em.circuit input').
You have to check this circuit (e.g. you can make a shortcut between 'Em.circuit output' and 'Em.circuit input').
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As I remember the Heidenhains, you could only fool the Emergency stop circuit by wiring a relay to the output, and wiring the contact of that relay back into the e.stop feedback.you can make a shortcut between 'Em.circuit output' and 'Em.circuit input'
I'm sure they used to pulse the output a couple of times, and only accept the machine was ok, if it saw the same pulses fed back in.
It was done this way to test for welded relay contacts.