aerotech.com

ALAR-LP SPECIFICATIONS

1. Limited travel options only.

Mechanical Specifications

ALAR100LP

ALAR150LP

ALAR200LP

ALAR250LP

ALAR325LP

Travel

Continuous (optional 340° max. limited travel)

Aperture

100 mm

150 mm

200 mm

250 mm

325 mm

Resolution (Min. Incremental Motion)(1)

0.1 µrad

(0.02 arc sec)

0.09 µrad

(0.018 arc sec)

0.02 µrad

(0.014 arc sec)

0.05 µrad

(0.01 arc sec)

0.04 µrad

(0.009 arc sec)

Accuracy(2)(3)

± 9.7 µrad (± 2 arcsec)

Bidirectional Repeatability(3)

± 2.4 µrad (± 0.5 arc sec)

Tilt-Error Motion

19.4 µrad (4.0 arc sec)

Maximum Speed(4)

50 rpm

45 rpm

90 rpm

120 rpm

Maximum Torque

13 N•m

22.9 N•m

126.8 N•m

147.9 N•m

213.8 N•m

Continuous Torque

2.2 N•m

4.0 N•m

19.3 N•m

22.5 N•m

35.0 N•m

Axial Load

1175 N

1325 N

4350 N

4590 N

5825 N

Radial Load

950 N

1275 N

4125 N

5050 N

6450 N

Moment Load(5)

150 N•m

225 N•m

1075 N•m

1475 N•m

2200 N•m

Shaft Inertia

0.022 kg•m2

0.031 kg•m2

0.190 kg•m2

0.310 kg•m2

0.550 kg•m2

Shaft Inertia with Limits

0.026 kg•m2

0.042 kg•m2

0.229 kg•m2

0.383 kg•m2

0.675 kg•m2

Stage Mass

8.3 kg

9.8 kg

28.2 kg

35.0 kg

44.5 kg

Stage Mass with Limits

8.9 kg

10.8 kg

30.1 kg

37.4 kg

49.9 kg

Electrical Specifications

ALAR100LP

ALAR150LP

ALAR200LP

ALAR250LP

ALAR325LP

Motor

Brushless Slotless

Continuous Current

Apk

5.8

5.4

5.3

5.1

Arms

4.1

3.8

3.6

Peak Current, Stall

Apk

33.5

31.4

34.8

31.2

Arms

23.7

22.2

24.6

22.1

Bus Voltage

Up to 340 VDC

Incremental Encoder Line Count

31,488 lines/rev

36,000 lines/rev

47,200 lines/rev

55,040 lines/rev

64,800 lines/rev

Limit Switches(1)

5 V, normally closed

1. Resolution assumes 1 Vpp encoder with 2000x controller multiplication.

2. Certified with each stage. Requires the use of an Aerotech controller.

3. Repeatability and accuracy are dependent on encoder selection. To achieve the listed specifications, the electrical resolution should be 0.2 arc sec or smaller.

4. Square-wave digital encoder options will limit maximum speed below the listed value. Contact factory for specific stage and encoder speed combination.

5. The ALAR-LP base must be fully supported by a rigid mounting surface to achieve the specified moment load.