KEYENCE PZ-VM User Manual

96M11228	Sensitivity Adjustment

Self-contained

Photoelectric Sensor

PZ-V/PZ-M

Instruction Manual

Read this manual before using the product in order to achieve maximum performance.

Keep this manual in a safe place after reading it so that it can be used at any time.

Precautions on Regulations and Standards

■ UL Certificate

This product is an UL/C-UL Listed product.

• UL File	No. E301717
• Category	NRKH,NRKH7
• Enclosure	Type 1 (Based on UL50)

Be sure to consider the following specifications when using this product as an UL/C-UL Listed Product.

•Use the power supply with Class 2 output defined in NFPA70 (NEC: National Electrical Code).

•Power supply/ Control input/ Control output circuits shall be connected to a single Class 2 source only.

•Use with the over current protection device which is rated 24V or more and not more than 2A.

Part Names

PZ-M		PZ-V
	Operation indicator	Operation	SET button
		indicator
	Sensitivity
	adjustment trimmer		UP button
			Digital
			monitor
			DOWN
			button
		Front side	Rear side

I/O Circuit

Circled numbers 1 to 4 represent the connector pin numbers.

PZ-M51(P) (Transmitter)

	1	Brown
Photoelectric sensor	main circuit	Blue
	3

PZ-M51(Receiver)/M61/M11/M31/V11/V31
DC12 to 24V			1	Brown	12 to
Photoelectric sensor				Pink	24 VDC
			2		Output
	main circuit	Overcurrent protection circuit	4	Load	control*
				Black
				Output
			3	Blue	0 V
0V
			DARK-ON mode	12 to 24 VDC		)
		*(LIGHT-ON mode		0 V

PZ-M51P (Receiver)/M61P/M11P/M31P/V11P/V31P

		1	Brown	12 to
sensorPhotoelectric	circuitmain	Overcurrent protectioncircuit		24 VDC			)
			Black	control (LIGHT-ON mode		0 V
			Output
		4	Load
		2	Pink	Output	DARK-ON mode	12 to 24 VDC
		3	Blue	0 V

■ PZ-V (Digital type)

● Detect a moving target (Fully-automatic calibration)

Operation	Procedure	Adjustment
	1	Pass a target through the optical axis while
		pressing the SET button.

2 Confirm that “ ” flashes on the monitor.

	3	Release the SET button. The preset value flashes
		several times before the normal display appears.
	● To detect a stationary target (Two-point calibration)

		Operation	Procedure		Adjustment
	1	2	1	With no target, press the SET button and release
				it. “	” and the current distance flash alternately.
			2	With the target in place, press and release the
				SET button. The preset value flashes several
				times before the normal display appears.

● To obtain maximum sensitivity (Maximum sensitivity setting)

Operation

Procedure

Adjustment

1

With no target, press the SET button for three seconds or more.

2 Confirm that “ ” flashes on the monitor.

3

Release the SET button. The preset value flashes several times before the normal display appears.

Note:If the green LED turns off or " - - - " flashes after the calibration, the sensitivity has no allowance. In such a case, adjust the sensor head position, and calibrate again.

● Fine sensitivity adjustment

•When the or button is pressed and released, the numerical value flashes (approx. 2 seconds). This is the preset value. If the or button is pressed again while the preset value flashes, the preset value can be increased or decreased.

•When the or button is held down for 3 seconds or more, the preset value increases/ decreases continuously.

●Other functions

Function

Operation

Description

Display

Display

Press the

and

Change the

ON

OFF

selection

buttons simul-

display as shown

taneously and

Distance

ON/OFF

on the right

release them.

display

display

Key-lock

Press the

and

Lock the operation

buttons simul-

buttons to avoid

flashes and then

taneously for

the preset value

the normal display

three seconds

from being

appears.

or more.

accidentally

changed.

Key-lock

Press the

and

Unlock the

cancel

buttons simul-

operation buttons

flashes and then

taneously for

to allow the preset

the normal display

three seconds

value to be

appears.

or more.

changed.

■ Distance display

•The greater the distance between the target and the sensor head, the larger the displayed value becomes.

•If the target or background is out of the detectable range, is displayed.

Note 1: The distance value indicates a reference value only. It is not an absolute distance. Note 2: If the target approaches the sensor head closer than the specified range, the displayed value may increase.

■ PZ-M (Trimmer type)

•DARK-ON mode (When LIGHT-ON mode is selected, refer to the description in parentheses.)

	Proce-	Operation							Trimmer	Indicators	Adjustment
	dure
											With the target in place, turn the trimmer to
										Green	"Max." With the receiver in place, move the
type	1										transmitter up/down and right/left. Set the
									Max.	Orange	transmitter at the midpoint of the range where
Thrubeam									Max.	Orange	the green LED is lit. Secure the transmitter and
											position as Point A.
											adjust the receiver position in the same way.
	2								A	Green	Turn the trimmer counterclockwise from Max.
											until the green LED turns off. Assume the
									A Optimal	Green	Set the trimmer midway between point A and
	3								position	Orange
									Max.		Max. Confirm sensor operation.

•LIGHT-ON mode (When DARK-ON mode is selected, refer to the description in parentheses.)

	Proce-	Operation					Trimmer	Indicators	Adjustment
	dure
type	1								With no target, turn the trimmer clockwise until
									assume the position as Point A. If the LED
								Green	the orange indicator illuminates (turns off) and
reflective-	2						A	Orange	does not illuminate (turn off) even with the
									counterclockwise from Point A until the green
									trimmer at Max., use Max. as Point A.
								Green	With the target in place, turn the trimmer
Multi							A	Orange	LED turns off. Assume the position as Point B.
							B Optimal	Green	Set the trimmer midway between points A and
	3						position
							A	Orange	B. Confirm sensor operation.

* The adjustment for the retroreflective type is the same as for the thrubeam type.

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