IHU4808 overall

 

Hollow shaft encoder, axis diameter 8mm, housing diameter 48mm, with flex bracket flange, easy for installing, low price at high performance.

Extensive to use for servomechanism, especially for servomotor.

Output Waveform

90 Output phase difference, CW rotation

(CW rotation as seen from fit surface)

IHU4808 rotation

Square-wave accuracy: X1 + X2 = 1/2T 1/12T, X3 + X4 = 1/2T 1/12T

Pitch error of period: 0.01T

Pitch error of phase position: 1/18T

Z Phase: Tz=1/4T (1T,1/2T,1/4T…)

Period of pulses: T=360 /N (N: output pulses)

Signal accuracy: Xn=1/4T 1/12T (n=1,2,3,4)

A leads B clockwise when viewing the encoder shaft end.

The position of Z shaft against A,B phase is not specified.

Period of UVW phase: P=360 /N1 1.5 (N1=2p,3p,4p…)

Phase difference: Yn=P/6 1.5 (n=1,2,3,4,5,6)

Difference of phase Z and phase U: C 1

Positional relationship of A&B phases and U, V&W phases are not specified.

Technical Specifications

Electrical specifications
Output wave Square wave
Output signals A,B,Z, U,V,W(line driver output A,A,B,B,Z,Z, U,U,V,V,W,W phase)
Current consumption 160mA
response frequency 0~120KHz
Output phase difference 90 45
Supply voltage 5V DC
Signal level VH 85% Vcc, VL 0.3V
Number of pulses 1000,1024,2048(2P,3P,4P); 2000(2P,3P,4P,6P); 2500(2P,3P,4P,5P,6P) (other number of pulse available on request)
Output circuit Line driver
Mechanical Specifications
Speed without sealing 6000rmp
Rotor moment of inertia Appr. 4.0×10-6 Kgm2
Starting torque without sealing 2.5×10-3Nm (+25 C)
Shock resistance 980m/s2, 6ms, 2 hours each on XYZ
Vibration proof 50m/s2, 10~200Hz, 2 hours each on XYZ
Working life MTBF 50000h (+25 C, 2000rpm)
Weight Appr. 140g (with 0.35 meter cable)
Environmental Specifications
Working humidity 30~85% (no condensation)
Storage temperature -40 C~110 C
Working temperature -25 C~100 C
Protection class IP54

Terminal Assignment

Signal +5V 0V SIG A SIG A SIG B SIG B SIG Z SIG Z SIG U SIG U SIG V SIG V SIG W SIG W Shield
Cable Color Red Bla Gre Bla/ Gre Whi Bla/ Whi Yel Bla/ Yel Bro Bla/ Bro Gre Bla/ Gre Ora Bla/ Ora N.C
Note: Shield is attached to connector housing, 0.35 meter cable lengths (other cable lengths on order)

Ordering Code

IHU4808 001 G 2500 BZ1 6P 5 L
Series Sequence Number Connection Number of Pulses Output Signals Periof of UVW Phase Supply Voltage Output Circuit

Selection Guide

Dimensions

IHU4808 dimensions

Motors described above are typical and can be customized upon request.

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