EC-RTB4

Product feature

Attachment orientation

Dimension drawing
Important notes on selection
Adaptive controller

Main specification

Specification 1

Heading		Contents
Speed reduction		1/10.5
Max. torque (N⋅m)		0.6
Acceleration/Deceleration (Note 7)	Maximum speed (degree/s)	600
	Min. Speed (degree/s)	20
	Rated acceleration/deceleration (G)	0.3
	Maximum acceleration/deceleration (G)	0.5
Brake	Brake specification	Non-excitation electromagnetic brake
Brake	Brake retention torque (N・m) (Note 8)	0.5
Operation range (Degree)		330

(Note 7) 1G≒9807 degree/s²

(Note 8) Allowable moment of inertia and brake retention torque are not necessarily compatible.

　Please confirm that the load torque is lower than the retention torque.

Specification 2

Heading	Contents
Drive system	Timing belt
Accuracy of Repeating Positioning.	±0.05°
Homing method	Mechanical stopper method
Homing precision	±0.05°
Lost motion	- (Can't be indicated because this is a 2-point positioning function. )
Backlash (Note 9)	0.15 degrees
Allowable thrust load	100N
Dynamic allowable load moment (Note 10)	1.5N･m
Allowable moment of inertia	0.011kg･m²
Radial rotation runout	0.1mm or less
Thrust rotation runout	0.1mm or less
Ambient operating temperature and humidity	0 - 40℃, RH 85% and below (no condensation)
Protection grade	IP20
Vibration resistant/Shock resistant	4.9m/s²
Compatible to overseas standards	CE mark, RoHS compliant
Motor type	Pulse motor (□28) (power capacity: Max. 2A)
Encoder type	Incremental / Battery-less absolute
Encoder pulse No.	16384 pulse/rev
Delivery	Written in [Reference for delivery] section of the homepage

(Note 9) There is no mechanical backlash since it is driven by a timing belt. However, there is hysteresis loss caused by the stretching of the timing belt.

(Note 10) When installed sideways or vertically, it would be 0.5N・m instead.

Direction of moment (Rotary type)

Correlation diagram of pressing force and current limiting value

Adaptive controller

(Note) EC series has their controller built-in themselves. See page 2 769 for details of the built-in controller.

Oversea specification

Important notes on selection

(1) The output torque decreases as the rotation speed increases. For details, please check the "Correlation diagram of rotational speed and output torque".
(2) The allowable moment of inertia of the rotating workpiece varies depending on the rotation speed. For details, please check the "Correlation diagram of rotational speed and allowable moment of inertia".
(3) The brake is for holding. Do not use for braking/emergency stop purposes.
(4) When making a selection, please calculate according to the "Selection method (page 2-95 onwards)" and check the usage conditions before making your selection.
(5) If push operation is required, please check the "Correlation diagram of pressing force and current limit value" first. Pressing force shown are their standard value.

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