THK ET20 Series, Manual

Page: 14 / 28

ET35
Controller Specifications
Basic Specifications
Model Number Coding
Selection Information
Body height
44 mm
Servo motor
100 W
Motor
wrap
Stepper
motor
35×35
Turn
table
type
Servo motor
80 W
Servo motor
50 W
If "TS" is selected for ④ With or without motor/controller type,
selections must be made for
⑦
to
⑨
.
Model
Reduction
ratio
Stroke
With or without motor/
controller type
Motor
bracket
Sensor Motor size Home position Cable length
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨
ET35 — 20 — 360 — TS — — U / 35P — D00 — S3
ET35 20 : 1/20 330 : 330°
TS : Stepper Driver
Controller TSC
No symbol : None No symbol : None
35P : Stepper motor
35×35
No symbol
: Multi-rotation
specifications
No symbol : None
30 : 1/30
360
: Multi-rotation
specifications
1
A : Stepper motor type
U : Sensor S3 : Standard 3 m
0 : Without motor D00 : Counter-clockwise movement S5 : Standard 5 m
1
: With motor
(THK will purchase
and mount the
motor you specify)
B
: Servo motor type
R00
: Clockwise movement
SA
: Standard 10 m
Motor size 35×35
Stroke (one side) (°) 330 or 360
Drive system Hypoid gear
Output shaft bearing Cross-roller ring
Reduction ratio 1/20 1/30
Max. permissible load torque (N·m) 2.2 3.3
Max. permissible moment of inertia (k
g
·m
2
) 0.028 0.042
Max. angular velocity (°/s) 600 400
Max. angular acceleration (°/s) 3000
Positioning repeatability (°) ±0.04
Backlash
3
(°) 0.2
Permissible axial load
4, 5
(N) 200
Permissible radial load 4, 5 (N) 88
Permissible moment
4, 5
(N·m) 17.7
Permissible input torque (N·m) 0.248
Mass
6
(k
g
) 1.2 (0.8)
3
Depending on usage conditions, minor wear to the hypoid gear may cause increased
backlash.
4
Please use with a safety margin of 1.5 or greater.
5
This is the permissible value when loaded in one direction.
6 Values in parentheses are for no motor specifications.
The available sensor
options vary based on
the stroke.
330: No Symbol
360: U
360° stroke (multi-rotation)
uses a homing sensor (1 m
cable).
D00 and R00 use mechanical homing.
R00
D00
Permissible Load and Permissible Moment
Axial
Moment
Moment Radial
Control device TSC
Motor size 35×35
Reduction ratio 1/20 1/30
Max. output torque 2 (N·m) 2.2 3.3
Max. permissible moment of inertia (k g ·m 2 ) 0.028 0.042
2 Varies based on angular velocity. See p. 14 "Angular Velocity versus Output Torque" graph for
details.
1
There are conditions for
using the product under
TSC specifications in
continuous rotation in one
direction. Please contact
THK for more information.
13