Rockwell Automation 440N-Z21U16A, 440N-Z21U16B, 440N-Z21U16H, 440N-Z21U16J, 440N-Z21U26A User Manual

SensaGuard™ 18 mm Plastic Barrel Unique Coding 440N-Z21U16*, 440N-Z21U26*

Installation Instructions

Original instructions in English

IMPORTANT	SAVE THESE INSTRUCTIONS FOR FUTURE USE.

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Installation Instructions

Installation must be in accordance with the following steps and stated specifications and should be carried out by suitable competent personnel. The unit is not to be used as a mechanical stop. Guard stops and guides must be fitted. Adherence to the recommended maintenance instructions forms part of the warranty.

This device is intended to be part of the safety related control system of a machine. Before installation, a risk assessment should be performed to determine whether the specifications of this device are suitable for all foreseeable operational and environmental characteristics of the machine to which it is to be fitted. Refer to Technical Specifications below for certification information and ratings.

	ATTENTION		The presence of spare actuators compromise the
			integrity of the safety systems. Personal injury or
			death, property damage or economic loss can
			result. Appropriate management controls, working
			procedures and alternative protective measures
			should be introduced to control their use and
			availability.
			Do not defeat, tamper, remove or bypass this unit.
	WARNING
			Severe injury to personnel could result. The sensor
			MUST be connected to a Class 2 SELV 24V DC,
			+10%/-15% power supply.

Operating Characteristics

	Sensing Distance	18 mm Actuator	30 mm Actuator
	Assured Make	15 mm	25 mm
	Assured OFF	25 mm	35 mm
	Typical Misalignment	(±7 mm in both axes)
	Repeat Accuracy	10% of sensing range
	Max. output current (all outputs)	200 mA
	Input Current	50 mA (no load supply current)
	Operational Current, Min.	1 mA DC
	Off-state Current	<0.5 mA DC
	Max. no. of switches, connected in	Unlimited. See Unit Response Time section on
	series	page 5.
	Operating Voltage	24V DC +10%/-15%
		Class 2 SELV power supply
	Frequency of operating cycle	1 Hz
	Response Time (Off)	54 ms first switch,
		18 ms for each additional switch
	Case Material	Polycarbonate
	Actuator Material	Polycarbonate

Outputs (guard door closed, actuator in place)

Outputs	Description	Status
Safety	2 x PNP, 0.2 A max.	ON (+24V DC)
Auxiliary	1 x PNP, 0.2 A max.	OFF (0V DC)

Environmental

Technical Specifications

		Type 4 Interlocking Device per ISO 14119 (High Coding)
	Safety Classification	PLe, Cat 4 per ISO 13849-1
		SIL CL3 per IEC 62061 and IEC 61508
	Standards	ISO 14119, IEC 60947-5-3, IEC 61508, IEC 62061, ISO 13849-
		1, UL 508, CSA 22.2 No. 14
	Certifications	TÜV, CE Marked for all applicable directives, cULus
	Functional Safety Data	PFH : 1.12 - 10-9
		D

	Operating Temperature [C (F)]	-10…+55 ° (14…131 °)
	Operating Humidity	5…95% relative
	Washdown Rating	NEMA 3, 4X, 12, 13, IP69k
	Shock & Vibration	IEC 68-2-27 30 g, 11 ms/IEC 68-2-6
		10…55 Hz
	Radio Frequency	IEC 61000-4-3
		IEC 61000-4-6

Rockwell Automation 440N-IN013A-EN-P—October 2014

2	SensaGuard™ 18 mm Plastic Barrel Unique Coding

Protection

Short-circuit	Incorporated
Current Limitation	Incorporated
Overload	Incorporated
False Pulse	Incorporated
Transient Noise	Incorporated
Reverse Polarity	Incorporated
Overvoltage	Incorporated
Thermal Shutdown/Restart	Incorporated
Electrical Life	10 x 106

Dimensions [mm (in.)]

16.84
[0.663]
3.17								4.57	Dia.
[0.125]								[0.18]
								2 places
					22.22
				48.92	[0.875]
		30.40		[1.926]
		[1.197]
						19.81
						[0.78]
							19.81
							[0.78]	22.22
								[0.875]
	30 mm Actuator							48.92
								[1.926]
15.42
[0.607]					4.57
3.17						DIA
					[0.180]
[0.125]					2 PLACES			67.06
							2.03	[2.640]
		15.87					[.080]
	36.47
19.81		[0.625]
	[1.436]
[0.78]		13.72
		[0.54]
			13.72					M18X1
			[0.54]	15.87
				[0.625]				Sensor
18 mm Actuator				36.47
				[1.436]

Mode of Operation

Status indicators:

•“Power/Fault” LED illuminates green: Door/guard closed, safety outputs active.

•“Power/Fault” LED illuminates red: Door/guard open, safety outputs off.

•“Power/Fault” LED flashes red: Unit failure. See Diagnostic section on page 3.

•“Power/Fault” LED flashes green: Safety inputs off.

Mounting Information

Use non-removable screws, bolts, or nuts to mount the switch and actuator. Do not over torque the mounting hardware.

Position the switch and actuator so they are aligned with each other.

Mount the switch and actuator to removable guard, door, or gate. Keep the switch and actuator within the sensing range below.

This switch is not meant to be fully embedded in metal. Use the stainless steel version (440N-Z21S17* or 440N-Z21U17*) for embedding.

Nut Torque Specification

Plastic Barrel Switch: 2.26 N•m (20 in•lb)

Plastic Actuators: 2.26 N•m (20 in•lb)

Minimum Distance Between Sensors

18 mm Actuator

30 mm Actuator

75 mm

100 mm

Sensor	Sensor	Sensor	Sensor
1	2	1	2

Misalignment Curve

18 mm Unit with 18 mm Target

	25				Assured Sensing
						Distance
						OFF
	20
Distance—mm		OFF								OFF
	15				Assured Sensing
						Distance
Face to Face	10					ON
	5	Side Lobe							Side Lobe
	0	-20	-15	-10	-5	0	5	10	15	20	25
	-25
	(-0.98)(-0.787) (-0.59) (-0.39) (-0.19)					(0.19)		(0.39)	(0.59) (0.787)		(0.98)

Lateral Misalignment Tolerance—mm (in)

	IMPORTANT		There must be a minimum spacing of 4 mm
			(0.157 in.) if actuator and sensor face approaches
			laterally. This will prevent false triggering due to
			the side lobe areas.

Rockwell Automation 440N-IN013A-EN-P—October 2014

SensaGuard™ 18 mm Plastic Barrel Unique Coding

3

18 mm Unit with 30 mm Target

	35			OFF
				Assured Sensing
	30			Distance
Distance—mm	25			Assured Sensing
		OFF				OFF
	20			Distance
				ON
	15
to Face
	10
Face
		Side Lobe				Side Lobe
	5
	0	-20	-10	0	10	20	30
	-30
	(-1.18)	(-0.787)	(-0.39)		(0.39)	(0.787)	(1.18)

Lateral Misalignment Tolerance—mm (in)

	IMPORTANT		There must be a minimum spacing of 7 mm
			(0.275 in.) if actuator and sensor face approaches
			laterally. This will prevent false triggering due to
			the side lobe areas.

Wiring Diagram

8-Pin Unit

Pin Number	Wire Color	Signal
1	White	Aux. Outputs
2	Brown	+24V
3	Green	NA
4	Yellow	OSSD 2, +24V Input
5	Grey	OSSD 1
6	Pink	OSSD 2
7	Blue	0V
8	Red	OSSD 1, +24V Input

Recommended mating cable, 2 m (6.5 ft)—889D-F8AB-2. Replace the 2 with 5 (5 m) or 10 (10 m) for standard cable lengths.

Brown

Green

White

2			1
3	8		7			Blue
4	5		6
Red						Pink
Yellow
						Grey

5-Pin Unit

Pin Number	Signal
1	+24V
2	OSSD 1
3	0V
4	OSSD 2
5	Aux.

Recommended cordset, 2m (6.5 ft) - 889D-F5AC-2. Replace the 2 with 5 (5 m) or 10 (10 m) for standard cable lengths.

Note: If the user does not require the Auxiliary signal, a 4-pin cordset (889D-F4AC-2) can be used.

Recommended patchcord for use with ArmorBlock® Guard Safety I/O, 2 m (6.5 ft) - 889D-F4ACDM-2. Replace the 2 with 0M3 (0.3 m), 1 (1 m), 5 (5 m), or 10 (10 m) for standard cable lengths.

Note: Do not use a 5-pin patchcord with the ArmorBlock.

	2
3	5	1
	4

Diagnostic

Unit Indicators (per IEC 60073)

		State				Status	Troubleshooting
		Off				Not Powered	NA
		Red				Not Safe, OSSD not active	NA
	Device	Green				Safe, OSSD active	NA
	Output	Green				Power up test or OSSD inputs	Check 24V DC or OSSD inputs
	LED
		Flash				not valid	(yellow and red wire)
							Recoverable fault —check
		Red				1 Hz Flash Recoverable Fault	OSSD outputs are not shorted
		Flash				4 Hz Flash Non-recoverable Fault	to GND, 24V DC or each other.
							Cycle power.
	IMPORTANT				Refer to Technical Specifications (page 1) for
					certification information and ratings.

Rockwell Automation 440N-IN013A-EN-P—October 2014