Specifications

• Power Supply: DC 5V ±5%

• Signal Output: Differential A/B/Z pulses (anti-interference)

• Sensing Principle: Magnetic-electric induction (non-contact, long life)

• Operating Temp: 0°C ~ +60°C

• Protection: Vibration/oil resistance; fault self-diagnosis (triggers spindle encoder alarms)

Compatibility

• CNC Systems: FANUC 0i, 16i, 18i, 21i series

• Spindle Motors: FANUC α, αi series AC spindle motors

• Mounting: Directly installed at the rear of the spindle motor; compact, no calibration after replacement

Common Alarms & Troubleshooting

• Alarm 36x (Spindle Encoder Error): Check 5V power, connector wiring, or sensor board damage.

• Spindle Positioning Inaccuracy: Re-seat the sensor or replace it (non-contact, no mechanical wear).

• No Speed Feedback: Verify A/B pulse output and connector pin continuity.

Installation & ESD

1. Power OFF the machine and wait ≥5 min for discharge.

2. Use an anti-static wrist strap to avoid static damage.

3. Align the board with the motor’s rear slot, seat firmly, and secure screws.

4. Reconnect the encoder cable; power on and test spindle positioning/speed.