SRT230-75-INC-ABS-FL

Direct Drive (DDR) rotary tables with absolute and incremental  encoders provide superior angular positioning and are designed to eliminate backlash, friction and wear problems associated with worm, gear and belt drives. Low maintenance and high throughput characteristics of the Direct Drive stage yields the lowest total cost of ownership.

APPLICATIONS:

System performance

Unit

SRT230-75-INC/ABS

Tabletop diameter

mm

230

Height

mm

122

Aperture

mm

80

Motor type

Three phase brushless
torque motor

Peak Torque  

Tp (Nm)
(note 1)

200

Continuous torque   

Tc (Nm)

(note 2)

75

Peak current

Amp

12

Continuous current

Amp

6

Encoder   

l

 Incremental (A+,B+, A-,B-, Z+,Z-)
1,440,000 cpr
Absolute, BISS-C
2,097,152

Bearing axial load  capacity                 

Kg
(note 3)

100

Accuracy              

Arc-sec

30 (N-grade)
10 (P-grade)
 

Bus voltage

VDC

VAC

150-350

115-230 

Max. speed 

RPM

120

Bearing run-out  

Microns

30 (N grade)
10 (P-grade)

Stage weight

Kg

12

Construction

Rotor – steel

Stator - aluminum

Note 1

1sec. duration, coil at 20°C

Note 2

Coil at 120°C

Note 3

Load capacity rated at 1/10 of bearing L₁₀ rating

Note 4

Ratio Tp (Nm) / Jload (kg^m2)  >10 for servo loop stability