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Kuhnke Electronics Instruction Manual

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3.9 Status and Failure Indication<br />

"run" LED<br />

"stop" LED<br />

"failure" LED<br />

"bus" LED<br />

There are three light-emitting diodes that indicate the<br />

status of the controller.<br />

Fig.: 5 Location of status and failure LEDs<br />

� LED "run" is green:<br />

program running,<br />

special function completed<br />

� LED "stop" is red:<br />

user program stopped<br />

� red LED "failure":<br />

failure somewhere in the system<br />

� yellow LED "bus":<br />

bus status / failure<br />

Read the appendix (� section 8) to know what the<br />

separate and combined signals stand for.<br />

Hardware<br />

51

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