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Adjusting the beam axis, Beam axis alignment function, Zsub display (lower level) – KEYENCE IB Series User Manual

Page 6: Carry out, Adjusting the beam axis” (page 6) and, Transmitter receiver, Transmitter receiver receiver, Transmitter

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6

z

Sub display (Lower level)

The sub display switches with each push of the W or X button. According to the

type of displayed value selected, the sub display identification indicator will show

one of the following: [R.V. / ANALOG / HI / LO / SHIFT]

When the amplifier is turned on for the first time after the sensor head is connected,

the initial setting display appears. Make the initial setting according to the following

procedure as this is necessary for both the main unit and the expansion units when

units are added.

1

Select the judgment output and check output
polarity with the
S/T button, and press the
[MODE] button.

2

Press the S/T button to select the analog
output method and press the [MODE] button.

After the setting is complete, [GPF] blinks several times on the sub display and

changes to the main screen.

3

Carry out

“Adjusting the beam axis” (page 6) and

"Reference Light Registration (Gain Adjustment)" (Page 7).

Make other settings as necessary.

Adjust the laser beam’s axis.

1

Fix the receiver so that the transmitter and receiver are on the
same line.

2

With no object set in the detection area, move the transmitter
and fix it where the display value is the largest.

„

Beam axis alignment function

The IB series has a beam axis alignment function which makes it easy to adjust the

beam axis.

The beam axis can be adjusted easily with the help of the amplifier unit's display

and sensor head laser emission warning indicator.

1

Press the W/X buttons on the main screen simultaneously for 2
seconds, and display the received light on the sub display (lower
level).

2

With no object in the detection area, move the transmitter and
mount the transmitter and receiver so that the displayed
received light is the largest.

When the beam axis is aligned, the value on

the sub display (lower level) will increase. Fix

the units where the value is the largest when

possible.

At this time, the laser emission warning

indicator on the sensor head will turn off or

blink. The indicator's flashing cycle quickens

as the received light increases.

Adjust the beam axis together with the

incoming light level on the sub display (lower

level).

* The blinking cycle changes in stages. The faster the indicator blinks, the more

accurate the beam axis alignment is.

3

The main screen will reappear when a random button on the
amplifier unit is pressed.

R.V. (internal measurement value)
The R.V. (internal measurement value) is displayed. This

displayed value is not held.

Analog output (The analog output will only be displayed for
the main unit and only when it is enabled.)
The voltage value (unit: V) or current value (unit: mA) of the

analog output is displayed.

"Operation When the Power Is Turned On for the First Time" (Page 6)

"Initial Reset (Initialize)" (Page 8)

HIGH setting value
The upper limit of the acceptable range (tolerance setting

value) for the object that is being measured is displayed.

Also, the setting value can be changed. If the P.V. (judgment

value) exceeds the value set here, the HIGH output signal

will be sent.

"Setting the Tolerance Setting Value" (Page 7)

LOW setting value
The lower limit of the acceptable range (tolerance setting

value) for the object that is being measured is displayed.

Also, the setting value can be changed. If the P.V. (judgment

value) falls below the value set here, the LOW output signal

will be sent.

"Setting the Tolerance Setting Value" (Page 7)

Shift target value
When the zero shift button is pressed or the zero shift input is

set to ON, the R.V. (internal measurement value) will be

matched to the value set here.

"Zero Shift Function (Shifting the Internal Measurement
Value)" (Page 7)

Operation When the Power Is Turned On

for the First Time

Setting value

Description

PRP

NPN output

RPR

PNP output

Setting value

Description

QHH

Not output

W

Analog output after the judgment value is

converted to the range from 0 to 5 V.

W

Analog output after the judgment value is

converted to ±5 V.

W

Analog output after the judgment value is

converted to the range from 1 to 5 V.

C/RT

Analog output after the judgment value is

converted to the range from 4 to 20 mA.

Once the initial setting is completed, the initial setting display

will not appear when the power is turned on the second time or

the after. To change the initial setting, perform the initial reset.

"Initial Reset (Initialize)" (Page 8)

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

HOLD

CALC

CHECK

GO

GO

HOLD

CALC

CHECK

X

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

GO

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

HOLD

CALC

CHECK

GO

HOLD

CALC

CHECK

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

GO

HOLD

CALC

CHECK

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

R.V.

R.V.

ON

Analog output

[ANALOG]

ON

HIGH setting value

[HI]
ON

LOW setting value

[LO]

ON

Shift target value

[SHIFT]

ON

PRP

QWV

Output polarity

QHH

#P.)

Analog output

Point

Adjusting the Beam Axis

The beam axis does not need to be adjusted if the base of the

sensor head and the left side of the receiver looking from the

transmitter are installed on the same reference surface.

Laser emission

warning indicator

Description

Status drawing

Off

State when laser beam is

not transmitted into receiver.

Blink (slow)

*

Axis beam is misaligned.

Blink (fast)

*

Axis beam is approximately

aligned.

All judgment outputs turn off while using the beam axis

alignment function. The analog voltage output is fixed to 5.5 V

and the analog current output is fixed to 3.0 mA.

Transmitter

Receiver

Reference

1

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

#.K)P

GO

HOLD

CALC

CHECK

Received light

Transmitter

Receiver

Receiver

1

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

#.K)P

GO

HOLD

CALC

CHECK

Beam axis is misaligned.

Transmitter

1

LASER

BANK

0

1

2

3

HI

LO

R.V.

ANALOG

HI

SHIFT

ZERO SHIFT

TIMING

LO

ALIGNMENT

#.K)P

GO

HOLD

CALC

CHECK

Beam axis is aligned.

Laser emission warning indicator

LASER

R

. o N

L A I

R E S

R

E

S

A

L

T

R

E

S

A

L

T

R

. o

N L

A I R

E

S

R

. o

N L

A I R

E

S

R

E

S

A

L

T

Off

Blink (slow)

Blink (fast)

Reference