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3-28
3-1 Servo Drive Specifications
3
Specifications
Encoder Outputs (Phases A, B, and Z)
Pin 21: +A, 22:
−
A, 48:
−
B, 49: +B, 23: +Z, 24:
−
Z
Functions
• Pin 21 outputs the phase-A, phase-B, and phase-Z encoder signals for the Servomotor.
• The encoder outputs conform to the RS-422 communication method.
• The dividing ratio is set in the Encoder Divider Numerator Setting (Pn44) and the Encoder Divider
Denominator Setting (Pn45).
• The logical relation of phase B to the phase-A pulse is set in the Encoder Output Direction Switch
(Pn46).
• The ground for the output circuit line driver is connected to the signal ground (GND). It is not
isolated.
• The maximum output frequency is 4 Mpps (after multiplying by 4). The output frequency equals
the Servomotor encoder resolution
×
(Pn44/Pn45)
×
4
×
Servomotor rotation speed (r/min)
÷
60
• The output phases are shown below. (They are the same for both incremental and absolute
encoders.)
• If the Servomotor encoder resolution
×
(Pn44/
Pn45) is a multiple of 4, phases Z and A are
synchronized.
• In cases except for the one on the left, phases
A and Z are not synchronized.
Phase A
Phase B
Phase Z
Synched
Not synched
Phase A
Phase B
Phase Z
Summary of Contents for R88D-GT series
Page 20: ...18 Table of Contents ...
Page 234: ...3 133 3 8 Reactor Specifications 3 Specifications ...
Page 448: ...7 37 7 5 Manual Tuning 7 Adjustment Functions ...
Page 474: ...8 25 8 5 Periodic Maintenance 8 Troubleshooting ...
Page 475: ...Chapter 9 Appendix 9 1 Connection Examples 9 1 9 2 Parameter Tables 9 11 ...
Page 509: ......