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W301-0411E
Chapter B Chapter B
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7.2.2 Restriction Contents
When the stored stop set value or higher is reached, the crane stop output is performed while the crane is
operated toward to the critical side. Even after the stop output condition is canceled, the stop output is
maintained for 2 seconds. In order to suppress the hunting, hysteresis is used in the range limit judgment.
The critical side operations of swing limit and displayed warning codes are as shown below. With the swing limit,
the warning code is displayed even when the limit is canceled.
(1) Boom height (lifting height) limit
- Boom extension
- Elevation raising
- Jib extension
- Jib tilt raising
Code at stop: "W0028"
(2) Boom upper limit angle restriction
- Elevation raising
Code at stop: "W0026"
(3) Boom lower limit angle restriction
- Elevation lowering
Code at stop: "W0027"
(4) Load radius limit
- Boom extension
- Elevation lowering
- Jib extension
- Jib tilt lowering
Code at stop: "W0029"
(5) Right swing limit
- Right swing
Code at stop: "W0042"
(6) Left swing limit
- Left swing
Code at stop: "W0043"
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