
A. Directives, Standards and Technical Conditions for 3
rd
Party Servo /
B-64004EN/02 APPENDIX Spindle Motors & Encoders when Applying FANUC / GE Fanuc Dual-check Safety
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Attachment 1: Specification of 3rd Party Spindle Encoders
The GE Fanuc SPM does not include the terminating resistor (like e.g.
Siemens).
Depending on the sensor supply voltage and the sensor output
impedance, the signal amplitude varies.
In order to match the sensor output signals with the amplifier input
requirement, the terminating resistor might be necessary. See table
on following page for required signal specs.
If the terminating resistor is required, place it outside the SPM.
Rt is defined by
the specification of
the 3rd party sensor
Z-Phase Signal (Type B)
A/B-Phase Signal
Z-Phase Signal (Type A)
3rd
Party
Sensor
JY2 or JY5
Rt
MA
*MA
Rt
MB
*MB
Rt
MZ
*MZ