Epson G3 Series manual Eccentric Quantity, Eccentric quantity of load on the shaft, 100 150

Page 53

Setup & Operation 4. Setting of End Effectors

CAUTION

Eccentric Quantity and the Inertia Setting

The eccentric quantity of load (weight of the end effector and work piece) must be 150 mm or less. The G3 series Manipulators are not designed to work with eccentric quantity exceeding 150 mm.

Always set the eccentric quantity parameter according to the eccentric quantity. Setting a value that is smaller than the actual eccentric quantity may cause errors, excessive shock, insufficient function of the Manipulator, and/or shorten the life cycle of parts/mechanisms.

The acceptable eccentric quantity of load in G3 series is 0 mm at the default rating and 150 mm at the maximum. When the eccentric quantity of load exceeds the rating, change the setting of eccentric quantity parameter of Inertia command. After the setting is changed, the maximum acceleration/deceleration speed of the Manipulator at PTP motion corresponding to the “eccentric quantity” is set automatically.

Rotation center

Position of load’s center of gravity

Eccentric quantity (150 mm or less)

Eccentric Quantity

EPSON

RC+

Eccentric quantity of load on the shaft

The eccentric quantity of load (weight of the end effector and work piece) on the shaft can be set by “eccentric quantity” parameter of Inertia command.

Enter a value into the [Eccentricity:] text box on the [Inertia] panel ([Tools] - [Robot Manager]). (You may also execute the Inertia command from the [Command Window].)

Automatic acceleration/deceleration setting by Inertia (eccentric quantity)

(%) 120

100

 

 

 

*

The percentage in the graph is

100

 

 

 

 

 

 

 

based on the acceleration /

80

 

 

 

 

 

deceleration at rated eccentricity

60

 

60

 

 

 

(0 mm) as 100%.

 

 

40

 

 

 

40

 

 

 

 

 

 

 

 

20

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

0

50

100

150

(mm) Eccentricity setting

G3 Rev.1

43

Image 53
Contents G3 series Manipulator Manual G3 series Manipulator Manual Foreword Service Center Europe Japan & OthersNorth & South America Epson AMERICA, INC Controller RC180 Software Epson RC+ 5.0 Ver .3 or greater Before Reading This ManualG3 Rev.1 Table of Contents Maintenance Parts List Safety Maintenance General MaintenanceMotion Range CoversSetup & Operation Page Conventions SafetySetup & Operation 1. Safety Design and Installation Safety Unexpectedly Operation SafetyAll necessary safety precautions Free running distance in emergency Emergency StopJoint #4 Emergency Movement Without Drive PowerBe careful not to burn yourself Manipulator LabelsCommon Multiple Mounting Table Top Mounting Features of G3 series Manipulators SpecificationsSetup & Operation 2. Specifications Space productivityModel Number and Model Differences Standard-model G3-***S Part Names and Outer DimensionsTable Top Mounting Or more Setup & Operation 2. Specifications Cleanroom-model G3-***C Reference through hole View from the bottom of the base Standard-model G3-***1SM Multiple MountingG3-301SM G3-351SM 220 Max.410 Max.450 Upper bellows Exhaust port Plate cover Lower bellows Reference through hole View from the bottom of the base Specifications Assignable Value How to Set the Model Setup & Operation 3. Environments and Installation Environments and InstallationEnvironmental Conditions ConditionsDo not remove the M/C cables from the Manipulator Base TableSpace for cables Mounting DimensionsSpace for teaching Space for maintenance and inspection G3-251S/C Standard G3-301S/C G3-301SM/CM Unpacking and Transportation Installation Procedure Multiple Mounting Cleanroom-model Connecting the CablesCable Connections Electrical Wires User Wires and Pneumatic TubesPneumatic Tubes Malfunction of the robot systemMultiple Mounting Relocation and Storage Precautions for Relocation and StorageTable Top Mounting Example of Arm Retaining Posture Wire tie Sheet Attaching an End Effector Setting of End EffectorsUnit mm Common Dimensions Table Top MountingAttaching Cameras and Valves Weight Setting Weight and Inertia SettingsEquivalent Weight Formula Load on the Shaft100 Automatic speed setting by Weight 140Automatic acceleration/deceleration setting by Weight 120 Moment of Inertia and the Inertia Setting Inertia SettingMoment of inertia of load on the shaft 100 005100 150 Eccentric QuantityEccentric quantity of load on the shaft Moment of inertia of a cylinder Moment of inertia of a rectangular parallelepipedAutomatic acceleration/deceleration vs. Joint #3 position Precautions for Auto Acceleration/Deceleration of Joint #3100 120 150 Mm Shaft height G3 Rev.1Motion Range Setup & Operation 5. Motion RangeMotion Range Setting by Pulse Range for All Joints 1 Max. Pulse Range of Joint #1 ±142 / ±142 2 Max. Pulse Range of Joint #24 Max. Pulse Range of Joint #4 3 Max. Pulse Range of Joint #3Motion Range Setting by Mechanical Stops Views from the bottom of Arm #1 Setting the Mechanical Stops of Joints #1 and #2G3-**1SM/CM-R Views from the top of Arm #1Recommended JointSetting the Mechanical Stop of Joint #3 Sets low speed Standard Motion Range G3-251S 141 79.3 84.0 120 250 221.9 224.5 G3-301S-L 150 G3-301S-R G3-301SM/CM 115 G3-351SM-L G3-351SM-R 105 130 120 Setup & Operation 5. Motion Range Maintenance Page Maintenance 1. Safety Maintenance Safety MaintenanceNot connect it directly to a factory power source StoppedSchedule for Maintenance Inspection General MaintenanceInspection Point Inspection While the Power is on Manipulator is operatingMaintenance 2. General Maintenance Greasing Matching Origins Tightening Hexagon Socket Head Cap BoltsBolt Tightening Torque Set Screw Tightening TorqueG3-**1S Standard-model Layout of Maintenance PartsG3-**1C Cleanroom-model with bellows G3-**1SM Standard-model G3-**1CM Cleanroom-model with bellowsCovers Maintenance 3. CoversR13B031226 R13B031227Removal Arm Top CoverTable Top Mounting Multiple Mounting Installation Arm Cap Arm Bottom CoverG3-**1S* Standard-model G3-**1 Table Top MountingG3-**1* Table Top Mounting G3-**1*W Multiple Mounting Connector PlateG3-**1S* Standard-model G3-**1C* Cleanroom-model Connector Sub PlateUser Plate G3-**1* Table Top MountingBase Bottom Cover Heatsink PlateCommon Parts Maintenance Parts ListMaintenance 4. Maintenance Parts List Standard-model Parts by Environment Model