Bray 70 Series SERVO PRO DeviceNET - Manual (Page 8)

S70 DeviceNet Servo Installation & Maintenance Manual
2000 BRAY CONTROLS Page 7 of 24
2.5 Auto Calibration
To commence the Auto Calibration, do the following:
1. Press the calibration button for 2 seconds and then release.
2. The S70 will automatically seek the closed position and is indicated by the RED LED
D27. If the Actuator is already at the fully closed position, the S70 will move the Actuator
open until the Close switch is disengaged, and then move closed until the closed switch
engages.
3. Next, the S70 will automatically seek the open position. The Actuator will move toward
the opened direction until the opened switch engages.
4. The calibration readings are automatically stored into the S70 non-volatile memory.
5. The Auto Calibration mode can be aborted at anytime by engaging the Handwheel.
The Auto Calibration will fail under the following conditions:
1. The Handwheel is engaged (pulled outward).
2. The Opened or Closed Limit Switch CAMS are incorrectly set.
3. The Torque limit switch is activated during the calibration.
4. The position feedback potentiometer is not plugged into the S70 or is incorrectly
oriented.
5. The Actuator is unable to reach either the Opened or Closed limit switch within 45
seconds.