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Allied Motion's CM-2600 series torque motors are high performance brushless DC torque motors with integral optical encoders. CM-2600 motors have a hollow-shaft, rare-earth-magnet rotor supported by a robust precision ball bearing. An aluminum housing encloses the motor assembly and the integral encoder. These motors are characterized by a high torque-to-inertia ratio.
The CM-2600 was specifically designed for high resolution, high speed direct-drive positioning applications. Typical applications include semiconductor wafer processing equipment, turret scanners and other direct drive applications where a gearbox may be unsuitable.
Features & Benefits- 0.215 Nm (30 oz-in) continuous torque, 2027 RPM no-load speed, 24 V winding
- 15 mm, 19 mm or 0.75 in ID through bore
- High torque-to-inertia ratio
- Integral precision optical encoder provides ultra high resolution capability
- Low profile design
Options- Low distortion incremental sine/cosine encoder specifically designed for use with interpolators, yielding up to 144 million measuring steps
- Digital incremental encoder with up to 1,250,000 c/r (5 million measuring steps per rev)
- 16/18/20/22-bit absolute encoder in serial output format
- Extended temperature operating range to -40 ºC
- Stainless steel housing
|  | - 24 V brushless DC housed torque motor with continuous torque of 0.215 Nm (30 oz-in)
- 15 mm, 19 mm or 0.75 in ID hollow shaft
- Incremental encoder resolution of up to 1,250,000 c/r (5 million steps per rev)
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Mechanical Data
Parameter
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Value
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Hollow Shaft ID
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15.000 +0.025/-.000 mm (0.592 +.001/-.000 in),
19.000 +0.025/-.000 mm (0.7480 +.001/-.000 in),
19.050 +0.025/-.000 mm (0.750 +.001/-.000 in)
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Shaft Loading
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44.5 N axial, 22.3 N radial (10 lb axial, 5 lb radial)
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Shaft Runout
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0.103 mm (0.0005 in) TIR
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Starting Torque
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0.215 Nm (30 oz-in) max @20°C
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Shaft Rotation
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Continuous, reversible
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Shaft Speed
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4500 RPM max (mechanical)
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Shaft Material
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Stainless steel
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Housing Material
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Aluminum (stainless optional)
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Bearing Life
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Manufacturer specification
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Temperature
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Operating: -20°C to +85°C
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Shock
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50 G @ 11 ms
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Vibration
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5 - 2000 Hz @ 20 G
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Humidity
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98% without condensation
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Protection Class
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IP 40
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Motor Constants @ 25°C Ambient
Parameter
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Unit
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Value
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Design Voltage
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VDC
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24
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Peak Torque, ±25%
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oz-in
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329
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Nm
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2.32
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Peak Current, ±15%
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A
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6.2
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Max. Continuous Stall Torque (110°C rise)
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oz-in
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30
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Nm
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0.215
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Rotor Inertia
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oz-in-s²
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6E-2
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kg-m²
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4.24E-4
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Torque Sensitivity, ±10%
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oz-in/A
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15.6
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Nm/A
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0.11
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Voltage Constant
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V/kRPM
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12
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V/rad/s
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0.11
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No-load Speed
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RPM
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2027
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rad/s
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212
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Motor Constant
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oz-in/√W
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7.9
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Nm/√W
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0.056
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Electrical Time Constant
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ms
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0.34
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Mechanical Time Constant
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ms
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5.3
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Angular Acceleration (theoretical)
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rad/sec²
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21582
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Thermal Resistance(1)
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°C/Watt
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3.7
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Maximum Cogging Torque
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oz-in
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1.9
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Nm
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0.01
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Viscous Damping
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oz-in/RPM
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8.2E-4
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Nm/RPM
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5.8E-06
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Hysteresis Drag Torque
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oz-in
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1.05
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Nm
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0.007
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Terminal Resistance, ±12%
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Ohm
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3.89
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Terminal Inductance, ±30%
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mH
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1.32
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Number of Poles
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-
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12
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Weight
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lb
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1.125
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kg
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0.51
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(1) TPR with motor mounted to aluminum 12.1" x 12.1" x 0.50 heatsink, still air, 20°C ambient
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Encoder Specifications
Model:
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CM-2600 (PRELIMINARY)
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CM-2650
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CM-2650A (PRLIMINARY)
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Type
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Incremental, sine/cosine
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Incremental, digital, line driver
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Digital absolute
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Output Format
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A and B channel in quadrature, index
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Serial binary, 8-N-1 @ 230 kbps
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Standard Resolutions (c/r or bits)
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1000, 1024, 2000,
2048, 3600, 4096,
5000, 8192
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720, 768, 800, 850, 960, 1000, 1024, 1152,
1200, 1440, 1700, 2000, 2048, 3600,
4000, 4096, 5000, 7200, 8192, 10000,
11250, 16384, 25000, 25600, 31250, 32000,
50000, 51200, 62500, 64000, 90000, 100000,
102400, 112500, 125000, 128000, 156250,
180000, 200000, 205800, 225000, 250000,
256000, 312000, 360000, 400000, 409600,
450000, 500000, 512000, 625000, 720000,
819200, 900000, 1000000, 1024000, 1250000
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16, 18, 20 or 22 bits
absolute,
serial format
(custom protocols available)
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Frequency Response
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Flat up to 100 kHz
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<16,384 c/r 150 kHz min. @ 85 °C
>16,384 c/r 4.0 MHz min. @ 85 °C
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230 kbps
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Absolute Accuracy
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±12 arcsec (typ.)
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Output
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Default Vout = differential,
0.5V peak-to-peak
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Line driver/26LS31, EIA std. RS422 & DIN 66259 compatible
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LVDS
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Power Supply (VDC)
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+5 Vdc ±10% @ 100mA max. (no load)
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 Dimensions in in (mm)
 Motor Excitation Sequence and Hall Switch Output
Encoder WaveformsSine/Cosine
Digital Incremental
Digital Absolute
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CM-2600 (PRELIMINARY)
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CM-2650
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CM-2650A (PRELIMINARY)
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Line/Bit Count
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1000, 1024, 2000, 2048, 3600,
4096, 5000, 8192 c/rev
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720, 768, 800, 850, 960, 1000, 1024,
1152, 1200, 1440, 1700, 2000, 2048,
3600, 4000, 4096, 5000, 7200, 8192,
10000, 11250, 12000, 16384, 25000,
25600, 31250, 32000, 50000, 51200,
62500, 64000, 90000, 10000, 102400,
112500, 125000, 128000, 156250,
180000, 200000, 205800, 225000,
250000, 256000, 312000, 360000,
400000, 409600, 450000, 500000,
512000, 625000, 720000, 819200,
900000, 1000000, 1024000, 1250000
c/rev
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16, 18, 20 or 22
bits/rev,
serial out
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Item No.
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Description
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Type
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Size
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N/A
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CM-2600 Series Brushless DC Torque Motor-Encoder Specifications
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PDF
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223 kB
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N/A
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CM-2600 Series Brushless DC Torque Motor-Encoder Dimensions
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PDF
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43 kB
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N/A
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CM-2600 Series Brushless DC Torque Motor-Encoder Solidworks Part File
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SLDPRT
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932 kB
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