Rotary vacuum encoder alignment, Installation instructions, Iim mp po or rt ta an nt t – MicroE 1000V Mercury User Manual

Page 9: Rotary encoders

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IIM

MP

PO

OR

RT

TA

AN

NT

T

O

OU

UT

TP

PU

UT

T C

CA

ALLIIB

BR

RA

AT

TIIO

ON

N P

PR

RO

OC

CE

ED

DU

UR

RE

E

This procedure must be completed for
proper system operation each time the
sensor is aligned.

Push the Calibration button inside the SS-AT
1000 body with a small diameter shaft, such as

a bare cotton swab.
This will
set the gain and
offset of the M1000V,
producing a 1Vpp

output*.

The Power/Calibration
indicator will flash

continuously. Move the scale past the sensor
over a distance of at least 7mm (1/4”). Do
not run off the end of the scale when using a
segment scale. When the calibration procedure
is complete, the Power/Calibration LED stops
flashing.

*

±15% (Differential) across 120

Ω resistor

Installation Instructions

Rotary Encoders

Page 7

5

Proper sensor alignment may require minor adjustments to the sensor position with
respect to the scale. This can be performed easily using the SmartPrecision Alignment
Tool as illustrated below.

The red, yellow, or green LED will light depending on sensor alignment. Slowly
move the sensor by allowing it to slide on the mounting surface until the green
LED, is illuminated. Optimal alignment will be displayed as a “Bright Green” LED.

IIM

MP

PO

OR

RT

TA

AN

NT

T:

Confirm that the green LED blinks when passing over

the index. If not, readjust the sensor in the Y direction and repeat the above
procedure. When alignment is completed, tighten the sensor mounting screws.

x

Y

Z

θ

z

To align the sensor, move it
in the Y or

θ

z directions.

6

Confirm green over the full range of
motion by sliding the scale past the
sensor. The “green” LED must
remain on over the entire range. If
not aligned over the entire range of
motion, loosen the sensor mounting
screws and repeat step 5.

7

Power/

Calibration

indicator

Calibration

button

Proper

Alignment

indicator

SmartPrecision
Alignment Tool

Improper

Alignment LED

Red

Power/

Calibration

Power/

Calibration

Power/

Calibration

Improved

Alignment LED

Yellow

Proper

Alignment LED

Green

Optimal

Alignment LED

Bright Green

15 pin D

connector

to sensor

15 pin D

connector

to sensor

15 pin D

connector

to sensor

SmartPrecision
Alignment Tool

SSAT1000

SmartPrecision
Alignment Tool

SSAT1000

SmartPrecision
Alignment Tool

SSAT1000

SmartPrecision
Alignment Tool

SSAT1000

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