5-27
Note 6. Make sure that the radial load is within the allowable range when there is a radial load applied.
If the Servomotor is operated at more than the allowable radial load, the shaft may suffer dam-
age due to fatigue.
Note 7. Applying an excessive load even once can damage the bearings and eventually cause a
breakdown.
5-2-5 Encoder Specifications
Item
Standards
Encoder method
Optical incremental encoder
Number of output pulses
A, B phase: 1,024 pulses/revolution
Z phase: 1 pulse/revolution
Power supply voltage
5 VDC
±
5%
Power supply current
DC, 350 mA (for load resistance of 220
Ω
)
Phase characteristics
90
°
±
43.2
°
Phase relationship
For rotation in the CW direction, A phase is advanced by 90
°
compared to
B phase.
Maximum rotational speed
4500 r/min
Maximum response frequency
76.8 kHz
Output signals
+A, –A, +B, –B, +S, –S
Output impedance
Conforming to EIA RS-422A.
Output based on AM26LS31CN or equivalent.
Serial communications data
Z phase, poll sensor, U, V, W phase
Serial communications method
Combination communications method based on A, B, and S phases.
Specifications
Chapter 5
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