DDA-LH18C□A

Main specification

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Rated torque (N⋅m) (Note 3)25
Max. instantaneous torque (N⋅m)75
Deceleration/acceleration
(Note 4)
Rated speed (degree/s)800
Maximum speed (degree/s)1440
Max. acceleration/deceleration (G)9.99
BrakeBrake specification
Brake holding torque (N⋅m)
Operating rangeIndex type (degree)0~359.99
Multi-rotation absolute type (degree) (Note 5)±9999

(Note 3) This characteristic is valid when attached to our rated heat sink. Refer to page 1-312 for further details.

(Note 4) 1G≒9807 degree/s2

(Note 5) It will be ± 2520 instead when the SCON and high resolution type (20bit) are connected.

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Drive systemDirect drive
Accuracy of Repeating Positioning.17bit±19.8 seconds (±0.0055 degrees)
20bit±3.7 seconds (±0.00103 degrees)
Indexing accuracy (Note 6)17bit±45 seconds (±0.01249 degrees)
20bit±30 seconds (±0.00833 degrees)
Homing methodEncoder home position detection method
Homing precision17bit±19.8 seconds (±0.0055 degrees)
20bit±3.7 seconds (±0.00103 degrees)
Lost motion17bit39.6 seconds (0.011 degrees) or less
20bit7.4 seconds (0.00206 degrees) or less
Allowable thrust loadForward3100N
Reversing250N
Allowable load moment80N・m
Rotor inertia0.0092kg・m2
Allowable moment of inertia1.8kg・m2
Radial rotation runout0.03mm
Thrust rotation runout0.03mm
Base material propertyAluminum with side surface coated
Ambient operating temperature and humidity0 - 40℃, 20 - 85%RH or less (no condensation)
Protection gradeIP40
Vibration resistant/Shock resistant4.9m/s2
Compatible to overseas standardsCE mark, RoHS compliant
Motor output600W
Encoder typeAbsolute
Encoder pulse No.17bit131072 pulse/rev
20bit1048576 pulse/rev
DeliveryWritten in [Reference for delivery] section of the homepage

(Note 6) Indexing accuracy is supported when connected to SCON-CB/RCON-SC.

Rotary type moment direction and output shaft runout

Adaptive controller

The actuators introduced in this page are controllable using the controllers shown below. Please select their type based on intended usage.

NameAppearanceMax. connectable
axis No.
Power source voltageControl methodMaximum positioning points
PositionerPulse trainProgramNetwork *Select
DVCCCIEPRCNMLML3ECEPPRTSSNECM
RCON16
(ML3,SSN,ECM is 8)
DC24V
three-phase AC200V
128
(Position data unavailable for ML3, SSN and ECM)
RSEL836000
SCON-CB/CGB1Single phase AC200V512
(768 for network specification)
SCON2-CG1384
XSEL-P/Q6Single phase AC200V
Three-phase AC200V
20000
XSEL-RA/SA855000
(Vary based on type)

(Note) Refer to page 8-15 for network abbreviation symbols such as DV and CC.

(Note) Please refer to page 6-42 for precautions when selecting a controller.

(Note) High resolution type cannot be connected to XSEL-P/Q.

(Note) Multi-rotation absolute actuators cannot be connected to RCON-SC. To connect with R-unit (RCON/RSEL), an expansion unit (RCON-EXT) and SCON or SCON2 are required separately.

(Note) Rotary axis index mode cannot be used for EC, ML3, SSN, and ECM with motion network specifications.

(Note) For SCON2 ML3 and EC, if you do not specify the controller model function option, it will be a remote I/O specification, and if you select "M", it will be a motion network specification.

Oversea specification

Important notes on selection

(1) The load values ​​for the allowable load moment and allowable thrust load in the "Main Specifications" are values ​​that will give a running life of 5 years when operated smoothly for 8 hours a day at the rated rotation speed without impact.
(2) Index absolute type cannot be used while controlling with pulse-train/MECHATROLINK-III/EtherCAT Motion/SSCNET.
(3) Please note that when using XSEL with index absolute type, only shortcut control can be used.
(4) High resolution type cannot be connected to XSEL-P/Q.
(5) Requires extra care required depending on the mounting posture. Refer to page 1-312 for further details.
(6) To achieve optimal operation, it is necessary to adjust the gain parameters according to the load inertia to be loaded when starting up for the first time. Please refer to the DDA instruction manual (MJ3756) for further details.
(7) Please refer to page 6-41 for the selection method.
(8) There are precautions such as the operation type, the required number of regenerative resistors, and the maximum number of connectable axes. Please refer 6-42 for further details.

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Dimension drawing

Cable sideway exit type (option symbol A1)

*1 The position of the rotating part on the workpiece mounting surface shown in the top view is the origin. Home position mark sticker is affixed to the home position as a counter mark.

*2 The actuator cable is a robot cable.

Cable bottom exit type (option symbol A0)

*1 The actuator cable is a robot cable.

Mass

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Mass13kg

Homing method and forward rotation direction

When viewed from the top of the rotating part, the clockwise rotation is the forward (+) direction.

Rotates clockwise during a homing.

Detects and stops at the home position.

Features of operation type by controller

 Controller typeSCON-CBRCONRSELXSEL-P/QXSEL-RA/SA
Operation typeIndex absoluteMulti-rotation absoluteIndex absoluteMulti-rotation absoluteIndex absoluteMulti-rotation absoluteIndex absoluteMulti-rotation absoluteIndex absoluteMulti-rotation absolute
ResolutionStandard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Standard
(17bit)
High resolution
(20bit)
Max. operating range0 - 359.999 degrees±9999°±2520°0 - 359.999 degrees0 - 359.999 degrees0 -
359.999 degrees
±9999°0 - 359.999 degrees±9999°
Max. movement
per movement command
360 degreesWithin the above operating range360 degrees360 degrees180 degrees (Note 8)Within the above operating range180 degrees (Note 8)Within the above operating range
Limitless rotation (Note 7)EnabledUnavailableEnabledEnabledEnabled (Note 9)UnavailableEnabled (Note 9)Unavailable
Homing at initial operation/
after battery replacement
No more requiredRequiredNo more requiredNo more requiredNo more requiredRequiredNo more requiredRequired
Absolute batteryNo more requiredRequiredNo more requiredNo more requiredNo more requiredRequiredNo more requiredRequired
Pulse train controlUnavailableEnabledUnavailableUnavailableUnavailableUnavailableUnavailable
Motion network compatibilityUnavailableEnabledUnavailableUnavailableUnavailableUnavailableUnavailable
Interpolation operationUnavailableUnavailableEnabledEnabledEnabledEnabled
Synchronized movementUnavailableUnavailableUnavailableUnavailableEnabledUnavailableEnabled

This product supports different types of operation and resolutions depending on the controller connected. Please check the items supported by each controller before using them.

(Note 7) Please refer to 6-38 for details on limitless rotation.

(Note 8) Index absolute type XSEL selects the direction with the least amount of movement when moving to the target position if the movement angle from the current position is 180 degrees or more. Therefore, please note that the direction of rotation changes depending on the current position and the amount of movement.

(Note 9) Index absolute type allows unlimited rotation in the same direction. However, the XSEL is limited to 180 degrees at a time, so it cannot continue to rotate in the same direction without stopping like a motor can.

Guideline for travel time

Lower limit of load inertia (kg⋅m2)00.0050.010.020.020.030.040.060.080.10.150.20.30.40.60.811.21.4
Upper limit of load inertia (kg⋅m2)0.0050.010.0150.020.030.040.060.080.10.150.20.30.40.60.811.21.41.8
Time taken to rotate 45 degrees (s)0.0980.0960.0960.0970.0990.1040.1130.120.1260.140.1570.2070.2570.3520.4470.530.6290.7950.875
Time taken to rotate 90 degrees (s)0.1290.1280.1270.1280.1310.1360.1440.1530.1630.1840.2080.2680.3290.440.5490.6460.7580.9411.035
Time taken to rotate 180 degrees (s)0.1920.190.190.1910.1930.1990.2070.2150.2250.2490.2790.3540.4280.5620.6920.8060.9331.1331.257
Time taken to rotate 270 degrees (s)0.2540.2520.2520.2530.2560.2620.270.2780.2880.3120.3410.420.5040.6550.80.9251.0641.2741.415

The travel time varies depending on the load inertia. Please check the estimated travel time from the table below.

(Note) The numbers indicated in the table are just the guidelines and does not guarantee the travel time.

(Note) The time shown in the table is the time it takes to converge to the positioning width of 0.028 degrees (approximately 100 degrees seconds) from immediately after receiving the movement command.