WIKA Mobile Control LP
1540 Orchard Drive
Chambersburg, PA 17201
qSCALE maestro (PLC v01.00.00) Service Manual / Issue E (HMI v1.0.0) 04/2018 / rbm.
Service : (717) 217-2250
Parts / Sales : (717) 217-2269
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HIRSCHMANN MCS
6.3 Indicator Definitions
Indicators are located on the Central Control Unit and the Console to assist with troubleshooting basic
power and software issues.
6.3.1 Indicators on Central Control Unit
Visual LED indicators are located on the top of the Central Control Unit.
PON Is lit solid when Power to the controller is ON
POK Is lit solid when Power is OK indicating that the power supply circuitry is
good and the controller is providing the expected amount of power output to
the rest of the system.
SR Is lit solid when the Safety Relay is Active.
If this light is off it indicates a segmentation fault, memory leak, or another
condition that prevents the system from showing safe working areas.
A soft reset will not reset the safety relay, to do so you must fully power
down the controller and power it back on.
RUN Is lit solid when CoDeSys Application is RUNning.
ERR Software ERRor
The system software controls this LED; the normal case is that the LED is
off. If the LED is ON, or a flashing code is shown, then there is an error.
Note: The ERR light will turn on briefly during start-up and then turn off. This
is normal behaviour.
S1 Application-Specific control indicator.
If the LED is ON solid, the application is running; if it is flashing, there is a
safety system malfunction or missing crane information.
6.3.2 Indicators on Console
See Section 3.5 for definitions of indicators on the console.
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