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Product/Service Catalog


Quantum Devices, Inc.

Electrical Specifications

Input Voltage 5 VDC ± 5%
Input Current Requirements 35mA Typ., 50mA Max Plus Interface Loads
Input Ripple 2% Peak to Peak @ 5 VDC
Incremental Output Circuits (ABZ) 26C31 20mA Sink or Source Max (TTL Compatible)
Commutation Output Circuits (UVW) (B) Open Collector 4mA Sink Max, Pull Up Voltage 30 VDC Max
(C) Open Collector with 2k? pull-ups, 4mA Sink Max
Incremental Output Format Quadrature A leading B for CCW rotation viewed from encoder top.
Max Operating Frequency 500Khz or 15,000RPM
Commutation Format Three Phase 4, 6, or 8 poles
Commutation Accuracy ± 2° mechanical
Interpolation Factors 500/512PPR = 2x, 1000/1024PPR = 4x
2000/2048PPR = 8x, 2500PPR = 10x

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 0.490” [12.5mm]
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 1.024” [26mm] Bolt Circle
Dynamic Commutation Adjustment Range 26° mechanical
Moment of Inertia 4.0 x 10?6 oz-in-s²



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