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
www.wika-mc.com
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HIRSCHMANN MCS
6.6 Pressure Sensing
The System measures the pressure of the boom lift cylinder for both rod and piston side. Both sensors
communicate on the CAN Bus.
The signal runs from the pressure transducer as digital information on the CAN Bus to the central unit.
Note that the load displayed on the LMI is not a direct measurement when using pressure transducers;
rather, it is a calculated value. Ensure that the hydraulic system is functioning as intended and that
sensor values, mainly length and angle, are functioning correctly prior to troubleshooting the pressure
transducers.
HOME SETTINGS MACHINE
INFO
ANALOG
INPUTS
Possible Erro
Symbols
Short to
Ground
Short to Battery
Not
Calibrated
Deactivated
Open
Circuit
Response Timeout
No Signal From
Sensor
Confirm that the Rod and Piston pressure sensors initialized without errors in the Analog Inputs screen.
See Section 6.11.1 for details on the meanings of possible error codes.
Block Diagram
Rod
Pressure
Sensor
CAN Bus
qSCALE
Piston
Pressure
Sensor
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