Panasonic FX-301 Teaching, Case of 2-level teaching, Step Description, Case of limit teaching

FX-301

PRECAUTIONS FOR PROPER USE

Amplifier

Teaching

•The threshold values can be set by 2-level teaching, limit teaching or full- auto teaching, when the MODE indicator / TEACH (yellow) lights up.

In case of 2-level teaching

•This is the method of setting the threshold value by teaching two levels, corresponding to the object present and object absent conditions. Normally, setting is done by this method.

Step	Description	Display
Set the fiber within the sensing
range.
1 Press MODE key to light up
MODE indicator	/ TEACH
(yellow).
Press jog switch in the object present condition.
If the teaching is accepted, the read incident light intensity blinks in the digital display.
Thru-beam type	Reflective type

2

MODE indicator / TEACH (yellow) blinks.

Press jog switch in the object absent condition.

Thru-beam type Reflective type

3

If the teaching is accepted, the read incident light intensity blinks in the digital display and the threshold value is set at the mid-value between the incident light intensities in the object present and the object absent conditions. After

4this, the judgment on the stability of sensing is displayed.

• In case stable sensing is possible: ‘ ’ is displayed.

Stability indicator (green) blinks.

• In case stable sensing is not possible: ‘ ’ blinks. Stability indicator (green) is off.

5	The threshold value is displayed.
6	‘	’ blinks in the digital display.
7	The incident light intensity appears in the digital
	display and the setting is complete.

Note: Do not move or bend the fiber cable after the sensitivity setting. Detection may become unstable.

In case of full auto-teaching FX-301B(P)/G(P)/H(P) only

•Full auto-teaching is used when it is desired to set the threshold value without stopping the assembly line, with the object in the moving condition.

Step		Description	Display
	Set the fiber within the sensing
	range.
1	Press MODE key to light up
	MODE indicator / TEACH
	(yellow).
	Press the jog switch continuously for 0.5 sec. or more
2	with the object moving on the assembly line. (The
	incident light intensity is displayed during sampling.)
3	‘	’ is displayed on the digital display. Release the
	jog switch when the object has passed.

If the teaching is accepted, the read incident light intensity blinks in the digital display and the threshold value is set at the mid-value between the incident light intensities in the object present and the object absent conditions. After

4this, the judgment on the stability of sensing is displayed.

• In case stable sensing is possible: ‘ ’ is displayed.

Stability indicator (green) blinks.

• In case stable sensing is not possible: ‘ ’ blinks. Stability indicator (green) is off.

5	The threshold value is displayed.
6	‘	’ blinks in the digital display.
7	The incident light intensity appears in the digital
	display and the setting is complete.

In case of limit teaching

•This is the method of setting the threshold value by teaching only the object absent condition (stable incident light condition). This is used for detection in the presence of a background body or for detection of small objects.

Step		Description	Display
	Set the fiber within the sensing
	range.
1 Press MODE key to light up
	MODE indicator	/ TEACH
	(yellow).
	Press jog switch in the object absent condition.
	If the teaching is accepted, the read incident light
	intensity blinks in the display.
	Thru-beam type	Reflective type
2
3	MODE indicator / TEACH (yellow) blinks.
	Turn jog switch to the ‘ ’ side or ‘’ side.
	If jog switch is turned to the ‘ ’ side, ‘		’ scrolls
	(twice) the display from right to left, and the threshold
	level is shifted to a value approx. 15 %
	higher (lower sensitivity) than that set
	at 2. (Note 1)
	This is used in case of reflective type fibers.
	If jog switch is turned to the ‘’ side, ‘		’ scrolls
	(twice) the display from left to right, and the threshold
	level is shifted to a value approx. 15 %
4	lower (higher sensitivity) than that set
	at 2. (Note 1)
	This is used in case of thru-beam type
	fibers.

	After this, the judgment on whether the setting shift
5	amount can be shifted or not is displayed.
	• In case shifting is possible: ‘	’ blinks.
	• In case shifting is not possible: ‘	’ blinks.

6 The threshold value is displayed.

7	‘	’ blinks in the digital display.
8	The incident light intensity appears in the digital
	display and the setting is complete.

Notes: 1) The approx. 15% amount of shift is the initial value. The amount of shift can be changed in the PRO mode from approx. 5 to 80 % (5 % step). Refer to the ‘Fiber Sensor Guide Book’ or ‘SUNX fiber sensor home page’ (http://www.fiber-sensor.com) for more details pertaining to setting instructions.

2)Do not move or bend the fiber cable after the sensitivity setting. Detection may become unstable.

Notes: 1) The threshold value’s shift amount can be selected in PRO mode. Refer to the ‘SUNX fiber sensor home page’ (http://www.fiber- sensor.com) for more details pertaining to setting instructions. (Increments of 5 % between –45 and 45 % for setting possible. 0 % default.)

2)Do not move or bend the fiber cable after the sensitivity setting. Detection may become unstable.

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