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
Cable Reel
6.4 Boom Angle Sensing
The system measures the angle of the main boom of the machine with an angle sensor. The angle
sensor is contained within the cable reel, located on the main boom.
Start by verifying the measured angle to display the angle at several positions. The CAN Bus is digital
and as such will either transmit the signal correctly or not at all. The scaled value of the sensor can be
monitored and should be checked against a digital level outside of the system mounted on the boom. If
the scaled value varies from the measured value, replace the angle sensor. Refer to sensor documen-
tation for expected accuracy values.
The voltage supplied to either sensor should ideally be between 11.0 and 26.0V. The angle sensor is
located within a cable reel where it is connected to an LGH board and then to a CAN bus. This board
will supply the sensor with power.
The signal runs from the angle sensor to the LGH Board, both located in the cable reel. From there, it
travels as digital information to the central processing unit.
Basic
Troubleshooting
Block Diagram
Angle
Sensor
LGH
Board
CAN Bus
qSCALE
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