Troubleshooting
© 2016 Hirschmann Automation and Control GmbH · Mobile Machine Control Solutions · www.beldensolutions.com 46/161
qSCALE i2 Cranes (Tool Version 3.0.34) Service Manual / Issue B / 11-2017 / ac.
3.2.8.1.1 Anti-Two Block Switch (A2B)
The system measures the load block and its relationship to the head of the boom. The A2B switch is
located at the nose of the boom.
3.2.9 A2B Switch Overview
The signal runs from the A2B as a CAN Bus input of the central unit.
NOTE
Some systems have two (2) A2B switches wired in series.
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