User Mode
Cha pte r B
Cha pte r B
6.1.9 Jib fall prevention stop This is applied only when the AML status setting is in "jib set." While the side up jib is being set, boom extending operation by which the jib may fall or be damaged is stopped. Stop condition: Depending on the input conditions (1) to (3) below, automatic stop output is performed based on the table below. (1) Jib lock (automatic) pin detection (Di4) (2) Jib connecting (lock) pin detection (Di7) (3) Boom angle (Ai2) A: Boom telescoping extending operation lower limit angle during jib extending operation GR-130N-1/GR-160N-3: 75° GR-250N-3/GR-700N-1: 73° B: Boom telescoping extending operation upper limit angle during jib extending operation GR-130N-1: 82° GR-160N-3: 83° GR-250N-3/GR-700N-1: 85° Input
Output
Di4
Di7
Ai2
Jib lock pin
Jib connecting pin
Unlock (pull out)
--Removal (pull out)
Lock Insertion
Code at stop:
Boom angle
AML output
Stop code
---
Operation
None
A ≤ Angle
Operation
None
A > Angle
Stop
W0005 “Boom angle value becomes out of specified range”
B < Angle
Stop
W0006 “Improperly inserted jib lock pin”
B ≥ Angle
Operation
None
In accordance with table above
Stop function cancel: None Stop operation: (×: Stop operation) M winch Up
Down
A winch Up
Down
Boom telescoping
Boom elevation
Jib telescoping
Ext.
Rse.
Ext.
Ret.
Lwr.
Ret.
Jib tilt Rse.
×
B - 52
W301-0481E
Lwr.
Slewing Right
Left
Jib mounting Ext.
Stw.
