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Product/Service Catalog

QM35- EZ-Comm

Quantum Devices, Inc.

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%
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
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"
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



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