Consumption Degree Calculation Function - Mitsubishi Electric CR800-D Series User Manual

2.1.2 Consumption degree calculation function

This function calculates the consumption degree [%] of robot components based on the actual operating
status (motor speed, load status, and others), and calculates the period up to maintenance/inspection or
overhaul.
Consumption Degree [%] is calculated based on the recommended maintenance time of each part as 100
[%].
Beside consumption degree [%] of each robot component, the Total Score (Consumption Degree [%] and
Up to Maintenance) of maintenance parts (grease, timing belt), and the Total Score (Consumption
Degree [%]) of overhaul parts (reduction gear, bearing, ball screw, ball spline) are calculated, respectively
and are displayed on the comprehensive evaluation screen.
Maintenance parts
Overhaul parts
Operating Information
*1: Of the maintenance parts (grease, timing belt), the Consumption Degree [%] and Up to Maintenance
[h] of the part (joint axis) having the least remaining time are used.
*2: Of the overhaul parts (reduction gear, bearing, ball screw, ball spline), the Consumption Degree [%] of
the part (joint axis) having the least up to maintenance time is used.
Information confirmation
Information
Check method
Setting/operation
Setting item
Setting method
Operation item
Operation method
Basic specifications 12
Target parts
Grease
Timing belt
Reduction gear
Bearing
Ball screw/ball spline
-
· Consumption Degree: See above
· Up to Maintenance: See above (Total Score Maintenance Parts)
· Operating Information: See above
· [Consumption Status]: Existence of wear in each target part
· Maintenance Log: Log data under Maintenance Reset (date & time, parts, joint
axes)
RT ToolBox3 Preventive Maintenance screen (Refer to 5. Total score,
6 Consumption degree calculation function)
[Parameters] (Refer to 13.2.2
[Status Variable] (Refer to 12.2
· Notification Day setting: Warning Remaining Number of Days, Operation Time of
a Day, Notification Interval
· How to Notify setting (maintenance parts): Warning Occurrence, Signal Output
· How to Notify setting (overhaul parts): Warning Occurrence, Signal Output
· ["I/O Signals assignment"]
RT ToolBox3 Preventive Maintenance screen (Refer to 3.2.1.
notify
)
[Parameters] (Refer to 13.2.1 Setting parameters.)
· Maintenance Reset (reset of consumption degree)
· [Notification Pause]
RT ToolBox3 Preventive Maintenance screen
(Refer to 10.1 Warning Pause, 10.2
[Parameters] (Refer to 13.2.3
*1
[I/O Signal] (Refer to 14
Output data
Grease consumption degree [%] (for each joint axis)
Timing Belt consumption degree [%] (for each joint axis)
Total Score (Consumption Degree [%], Up to Maintenance
*1
[h])
Gear consumption degree [%] (for each joint axis)
Bearing consumption degree [%] (for each joint axis)
Ball Screw/Ball Spline consumption degree [%] (for each joint
axis)
Total Score (Consumption Degree [%])
Servo ON Time [h], Operation Time [h], Actual Operation
Time [h], Power ON Time [h], Servo ON Count [times], Motor
Cumulative Rotation Count [rotation] (for each joint axis)
Data acquisition parameter
Consumption degree calculation function
Maintenance Reset
Operation parameters
Dedicated input/output signals
*2
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Setting how to
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