Quantum Devices, Inc. Product

The Quantum Devices EZ-Comm system is the fastest and most economical way to align an optical encoder’s commutation channels to a motor. EZ-Comm was designed to reduce assembly cost for high volume manufacturing. By eliminating multiple steps from the typical timing of an encoder and motor, EZ-Comm saves manufacturing time and reduces assembly cost. EZ-Comm is integrated into the high performance, low profile modular design of the QM35. QM35 EZ-Comm is ideal for high volume OEM applications and priced competitively for all sizes of motion control projects. As simple as a push of a button, QM35 EZ-Comm is the newest and simplest way to commutate your BLDC motors.
Electrical Specifications
Input Voltage | 5 VDC ± 5% |
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Input Current Requirements | 65mA Typ., 100mA max plus interface loads |
Input Ripple | 2% peak to peak @ 5 VDC |
Output Circuits | 26C31 RS-422A line driver (TTL compatible) Optional UVW open collector (No U’ V’ W’) |
Incremental Output Format | Quadrature A leading B for CCW rotation viewed from encoder top. |
Max Operating Frequency | < 5000PPR = 500Khz or 15,000RPM 5000PPR – 7999PPR = 675Khz ≥ 8000PPR = 1.0Mhz 1000LC-10P, 1024LC-10P, 2000LC-10P, 2048-10P and 2048LC-14P = 7,000RPM |
Commutation Format | Three phase 4, 6, 8, 10 or 14 poles |
Commutation Accuracy (U-V-W) | See Specification Sheet |
Interpolation Factors | 1000/1024PPR = 2x 2000/2048PPR = 4x 2500PPR = 5x 4000/4096PPR = 8x 5000/5120PPR = 10x 8000/8192PPR = 16x |
Environmental Specifications
Storage Temperature | -40 to 125° C |
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Operating Temperature | -30 to 115° C |
IP Rating | 40 |
Humidity | 90% Non-condensing |
Vibration | 20 g's @ 25 to 2,000 Hz |
Shock | 100 g's @ 6mS duration |
Mechanical Specification
Bore Minimum Diameter | Bore size +0.0002" |
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Recommended Shaft Tolerance | +0.0000/-0.0005" |
Minimum Shaft Engagement | 0.400" [10.2mm] |
Allowable Shaft Run Out | 0.002" [0.05mm] TIR [±0.001" shaft radial play from initial shaft position of assembled encoder] |
Allowable Axial Shaft Movement | ±0.010" [±0.25mm] |
Mounting | 1.280" bolt circle/size 15 resolver 1.812" bolt circle |
Dynamic Commutation Adjustment Range | 30° mechanical |
Moment of Inertia | 8.0 x 10?6 oz-in-S² |