MicroE Mercury II 6000 - Manual (Page 14)

Sensor Alignment and Calibration
IM-Mercury_II_6000 Series Rev. 1 Page 13 ©2014 MicroE Systems
Mercury II 6000 Series Encoders
Installation Manual and Reference Guide
Rotary Scales used in applications less than >360° without Limit Markers
Step Action
1. To start calibration, press and hold the Cal. button for about 10 seconds: until the three Signal
LEDs blink twice to indicate that rotary calibration has been activated.
2. Move the sensor 50mm to perform Gain/Offset /Phase calibration. After calibration both limit
LED’s come on steady. Move the sensor back and forth if your scale has a circumference of
<50mm.
Result: After calibration both limit LEDs come on steady.
3. Move the sensor to an area of the scale away from the index marker. Press the Cal. button
once quickly.
Result: The Power/Cal. LED will start blinking quickly.
4. Move the sensor over the index up to 20 passes (one pass is a single cycle back and forth).
Result: The Power/Cal. LED and both limit LEDs will start to blink in sets of three.
5. Move the sensor away from the index and press the Cal. button once quickly.
Result: The Power/Cal. LED and both limit LED’s will start to blink in sets of two.
6. Move the sensor over the index once.
Result: The LEDs will change to Power/Cal. LED and both limit LEDs blinking just once.
7. Make a full revolution of the rotary scale in order to go over the index again in the same
direction. The two passes over the index must be at least 1000 20µm fringes apart (equivalent
of 20mm linear travel), if they are not, the Alignment Tool will wait for another pass that is 1000
fringes from the first.
Result: The encoder is now ready for connection to the controller for use in servo control.
8. When calibration is complete, go to Section 6.0 Alignment Verification with Connector
LEDs to visually verify c alibration using the LED indicators on the MII6000 sensor’s connector.
Note: To skip any portion of` this calibration and move on to the next procedure, press and hold
the Cal. button for two seconds.
Signal LEDs (3)
Cal. Pushbutton
Power/Cal. LED