Maeda MC-305C-2 - Moment Limiter Working Envelope Setting

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1.6.7 MOMENT LIMITER WORKING ENVELOPE SETTING
• The boom may go beyond the set value when operated at high speed even if the working
envelope was restricted by the moment limiter.
Be sure to set the working envelope with safe distance from obstacles.
Operate the crane at low speed.
• Be sure to verify that the boom stops at the set position after setting the boom working
envelope.
If the boom working envelope is limited due to working space issue, you can set the boom working
envelope to the desired value.
[1] SETTING WORKING ENVELOPE
Operate the boom to the limit of the working envelope you would
like to restrict, and press the appropriate SETUP/CANCEL switch
for 2 seconds.
You can set that limit value.
At the same time, the LED above the appropriate switch lights up.
Then, return the boom to the following setting to enable the
restriction control.
“Set value – 10 degrees or more” for boom upper limit.
“Set value + 7 degrees or more” for boom lower limit.
“Set value – 1.3 m or less” for working radius upper limit
“Set value – 1.3 m or less” for lifting height (With [Lower] or
[Retract] operation of the boom)
Or, turn the starter switch to the “OFF” position and then turn again
to the ”ON” position to enable the restriction.
NOTES
The last status of the set value has been held in memory even if
the starter switch is turned to the “OFF” position.
[2] CANCELING WORKING ENVELOPE SETTING
• Press and hold the CANCEL switch and CHECK switch at the
same time for 5 seconds or more.
All the set working envelope restrictions are canceled.
At the same time, the LED above all the working envelope limit
switches go off to complete the cancellation of the settings.
• Press the SETUP/CANCEL switch of the item which restriction
you would like to cancel for 5 seconds.
The set value of only the item can be canceled.
At the same time, the LED above the switch goes off to complete
the cancellation of the setting.
NOTES
See “Operation 1.6.4 [1] Descriptions of Switches on Moment
Limiter Display Unit” for how to set limit on the working envelope.