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Calibration setting mode, Error message, Specifications – KEYENCE GT-70A Series User Manual

Page 9: Sensor head

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9

GT-M-E

Calibration setting mode

You can set the following functions in the calibration setting mode.

Error message

*1 If not recovered by this action, there may be a possibility of failure or

permanent damage. In this case, change the amplifier unit.

Specifications

Sensor head

*1 The read value at the detection center under an ambient temperature

of 23°C and a response time of 100 ms (default state).

*2 At the center of the movable range of the sensor head installed.

Varies according to the mounted condition of the dust protective boot.

*3 The connector cable (2 m) is included.

No.

Item

Description

Calibration

Set the calibration function.

2nd point
target value

Set the target value of the span adjustment
(2nd point).

Reference position

fixed

Jam detection teaching

Available to set when USEr is selected in [ Jam detection function].

Check point setting

Display for entering the setting value

MODE

Available to set when USEr is selected in [ Jam detection function].

ON

Display filter function

OFF

MODE

Default

Adjustment

Calibration function setting

(press and hold the [MODE] + right buttons in the main screen)

MODE

Detect 1st point

Blink alternately

Capture the detection value

1st point detection/capture

Available to set only when AdJ is selected in [ Calibration function setting].

*Target value for the first point is the PrESEt value.

Display for entering the setting value

2nd point target value setting

MODE

Detect 2nd point

Blink alternately

Capture the detection value

2nd point detection/capture

Error display

Cause

Corrective action

The sensor head
cable is disconnected.

Connect the sensor head to
the amplifier.

• The sensor head

cable is broken.

• The sensor head is

damaged.

Change the sensor head.

An overcurrent flows
in the output line.

• Check that the load is within

the rating.

• Check that the output line is

not contacting other lines and
frames.

Failed to write/read
data.

Reboot the equipment and
perform initial reset.

*1

Spindle movement is
not detected

• If something is caught in the

spindle, causing the spindle not to
move, change the sensor head.

• Check the external timing input.

(Press the SET button to reset.)

The value fell below (rose
above) the timing level
during the delay time.

Change the delay timer time
setting. (Press the SET button
to reset.)

When setting the
internal timing, detection
was completed when the
value fell below (rose
above) the timing level
before the criterion value
(P.V. value) is fixed.

The value should not fall below
(rise above) the timing level
before the criterion value is
fixed. Alternatively, lengthen
the static hold delay stabilizing
amplitude so that the criterion
value can be easily fixed.

Contact between the
amplifiers is lost.

After turning OFF the power,
check the connection between
the amplifiers.

In the case of using the
calculation function,
the number of the
expansion unit when
the power is turned ON
differs from the number
of the expansion unit in
the memory of the
main unit when the
calculation is set.

• Reset the calculation mode

or perform the initial reset of
the main unit.

• After turning OFF the power,

check the connections
between the amplifiers.

• When using the

reference difference
(rEF) calculation
function, an error
occurred in the main
unit.

• When using other

than the reference
difference (rEF)
calculation function,
an error occurred in
an expansion unit.

Check each main/expansion
unit for the cause of the error.

Model

GT-H10

GT-H22

GT-H10L GT-H22L

Detecting range

10 mm

22 mm

10 mm

22 mm

Mechanical response
(at an ambient temperature of 23°C)

10 Hz max. 8 Hz max.

7 Hz max.

5 Hz max.

Repeat accuracy

*1

3 µm

8 µm

3 µm

8 µm

Measuring

Force

*2

When installed
facing down

1.0 N

1.5 N

0.3 N

0.35 N

When installed
sideways

0.9 N

1.4 N

0.25 N

0.3 N

When installed
facing up

0.8 N

1.3 N

0.2 N

0.25 N

Environmental
resistance

Ambient
temperature

-10°C to +55°C

Relative
humidity

35 to 85%RH

Protective construction

IP67

Material

Main unit cover SUS430
Indicator

Polyalylate

Dust protective boot NBR
Contact point

SUS440C

Cable

PVC

Weight

*3

Approx.
115 g

Approx.
135 g

Approx.
115 g

Approx.
135 g