SensaGuard™

Description

When it comes to machine safety, Rockwell Automation knows that protection of personnel and equipment is your main concern. At the same time, flexibility and productivity are points that must also be considered as you design your safety system. Optimize all of these with the new Allen-Bradley SensaGuard family of non-contact switches.

Featuring the latest generation of RFID technology for coding and Inductive technology for sensing, SensaGuard’s large sensing range and tolerance to misalignment is a cost-effective solution that is ideally suited for a wide range of industrial safety applications.

The SensaGuard product line is a Category 4 /SIL 3 rated switch per EN954-1, TÜV functional safety approved to IEC 61508.

Features

• Switches can be connect to a standard safety relay, for example, the MSR126, MSR127, MSR200/300 Family, SmartGuard™ and Safety I/O Blocks
  
• Multiple actuator sizes for large sensing distance
  
• IP69K environmental rating
  
• Short-circuit and over-voltage protection
  
• LED located on the switch for door status and troubleshooting
  

Benefits

• No dedicated controller required
  
• Cat 4/SIL 3 rating maintained even with multiple units connected in series
  
• Switches can be connected in series with other devices (light curtain, E-stops, key interlock switches)
  
• Extended diagnostics for easy troubleshooting
  
• Large sensing distances
  
• Tolerance to misalignment
  
• Multiple sensing directions
  
• Stainless steel version suitable for use in harsh environments
  
• Use standard proximity brackets
  

Specifications

Safety Ratings
Standards	IEC 60947-5-3, IEC 61508, EN 954
Safety Classification	Cat. 4/SIL3
Functional Safety Data ¬  Note: For up-to-date information, visit http://www.ab.com/Safety/	PFHD: > 1.12 x 109 MTTFd: > 385 years Dual channel interlock may be suitable for performance levels PLe or PLd (according to ISO 13849-1:2006) and for use in SIL2 or SIL3 systems (according to IEC 62061) depending on application characteristics
Certifications	CE marked for all applicable directives, cULus (UL 508), and TÜV
Outputs (Guard Door Closed, Actuator in Place)
Safety Outputs	2 x PNP, 0.2 A, max.; Status: ON (+24V DC)
Auxiliary Outputs	1 x PNP, 0.2 A max.; Status: OFF (0V DC)
Operating Characteristics
Sensing Distance (Assure)	18 mm Plastic Barrel/18 mm Target	15 mm (0.59 in)
	18 mm Plastic Barrel/30 mm Target	25 mm (0.98 in)
	18 mm Stainless Steel Barrel/Standard Target	10 mm (0.39 in)
	Large Rectangular Flat Pack with Standard Target	15 mm (0.59 in)
Misalignment Tolerance, Min	See misalignment curve.
Repeat Accuracy	10% of Sensing Range
Output Current, Max.	200 mA (all outputs)
Operating Voltage	24V DC, +10%/-15% Class 2 SELV power supply
Current Consumption	50 mA
Frequency of Operating Cycle	1 Hz
Response Time (Off)	54 ms
Environmental
Enclosure Type Rating	NEMA 3, 4X, 12, 13, IP 69K
Operating Temperature [C (F)]	-10…+55° (+14…+131°)
Relative Humidity	5…95%
Shock	IEC68-2-27 30 g, 11 ms
Vibration	IEC 68-2-6 10…55 Hz
Radio Frequency	IEC 61000-4-3, IEC 61000-4-6
Physical Characteristics
Housing Material	Valox® DR 48
Actuator Material	Valox® DR 48
Color	Red
¬ Usable for ISO 13849-1:2006 and IEC 62061. Data other than B10d is based on: - Usage rate of 1op/10 mins., 24 hrs/day, 360 days/year, representing 51840 operations per year - Mission time/Proof test interval of 30 years

Product Selection

Type	Actuator Type	Assured Sensing Distance	LED Door Indication/ Diagnostic	Margin Indication	Magnetic Hold	Cat. No.
						Cable		Connector
						3 m	10 m	6 inch Pigtail, 8-pin Micro (M12)
18 mm plastic barrel	18 mm plastic	15 mm (0.59 in.)	Yes	-	-	440N-Z21S16A	440N-Z21S16B	440N-Z21S16H
	30 mm plastic	25 mm (0.98 in.)	Yes	-	-	440N-Z21S26A	440N-Z21S26B	440N-Z21S26H
18 mm stainless steel barrel	18 mm stainless steel	10 mm (0.39 in.)	Yes	-	-	440N-Z21S17A	440N-Z21S17B	440N-Z21S17H
Rectangular, standard model	Standard Plastic	15 mm (0.59 in.)	Yes	-	-	440N-Z21SS2A	440N-Z21SS2B	440N-Z21SS2H
			Yes	Yes	-	440N-Z21SS2AN	440N-Z21SS2BN	440N-Z21SS2HN
			Yes	Yes	Yes	440N-Z21SS2AN9	440N-Z21SS2BN9	440N-Z21SS2HN9

Recommended Logic Interfaces

Description	Safety Outputs	Auxiliary Outputs	Terminals	Reset Type	Power Supply	Cat. Page No.	Cat. No.
Single-Function Safety Relays
MSR127RP	3 N.O.	1 N.C.	Removable (Screw)	Monitored Manual	24V AC/DC	MSR127RP/TP	440R-N23135
MSR127TP				Auto./Manual		MSR127RP/TP	440R-N23132
Modular Safety Relays
MSR211P Base 2 N.C. only	2 N.O.	1 N.C.	Removable	Auto./Manual or Monitored Manual	24V DC from the base unit	MSR211P	440R-H23177
MSR220P Input Module	—	—	Removable	—	24V DC	MSR220P	440R-H23178
MSR310P Base	MSR300 Series Output Modules	3 PNP Solid State	Removable	Auto./Manual Monitored Manual	24V DC	MSR310P	440R-W23219
MSR320P Input Module	—	2 PNP Solid State	Removable	—	24V DC from the base unit	MSR320P	440R-W23218

Note: For additional Safety Relays connectivity, see Safety Relays.
For additional Safety I/O and Safety PLC connectivity, see Programmable Safety Solutions.
For application and wiring diagrams, see Safety Applications and Wiring Diagrams.

Connection Systems

Description	Cat. No.
Cordset	889D-F8AB-¬
Patchcord	889D-F8ABDM-T
Safety Wired T-Port	898D-438Y-D8
Safety Wired Shorting Plug	898D-418U-DM

¬  Replace symbol with 2 (2 m), 5 (5 m), or 10 (10 m) for standard cable lengths.
T  Replace symbol with 1 (1 m), 2 (2 m), 3 (3 m), 5 (5 m), or 10 (10 m) for standard lengths.
Note: For additional information, see Safety Connection Systems.

Accessories

Description		Cat. No.
	18 mm Plastic Actuator	440N-Z18PT
	30 mm Plastic Actuator	440N-Z30PT
	18 mm Stainless Steel Actuator	440N-Z18SST
	Large Rectangular Plastic Actuator Standard Model	440N-ZPREC
	Standard Model Margin/Magnetic Hold	440N-ZPRECM
	Mounting Bracket for Tubular Sensors—Right Angle Style	871A-BRS18
	Mounting Bracket for Tubular Sensors—Clamp Style	871A-BP18
	Snap Clamp Mounting Bracket	871A-SCBP18
	Swivel/Tilt Bracket Allows ±10° Vertical and 360° Rotation Adjustment	60-2649

Approximate Dimensions—mm (inches)

Dimensions are not intended to be used for installation purposes.

18 mm Barrel



Large Rectangular Flat Pack


Typical Wiring Diagrams

Description		Plastic	Stainless Steel
8-Pin Micro (M12)
8-Pin Cordset 889D-F8AB-¬  or cable version	Grey	Safety A	Safety A
	Red	Safety A+	Safety A+
	Pink	Safety B	Safety B
	Yellow	Safety B+	Safety B+
	White	Aux A	Aux A
	Brown	24V DC +	24V DC +
	Blue	Gnd	Gnd
	Green	NA	Shield
¬ Replace symbol with 2 (2 m), 5 (5 m) or 10 (10 m) for standard cable lengths.

Misalignment Curves

18 mm Stainless Steel Barrel	18 mm Plastic Barrel	30 mm Plastic Barrel
Note: 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.	Note: 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.	Note: 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.

Large Rectangular Flat Pack



Minimum Distance Between Sensors




Diagnostic



Unit Indicators (per IEC 60073)

	State	Status	Troubleshooting
	Off	Not Powered	NA
	Red	Not Safe, Output Off	NA
	Green	Safe, Output On	NA
Device Output LED	Green Flash	Power Up Test	Check 24V DC on Safety + Outputs (yellow and red wire)
	Red Flash	1 Hz Flash Recoverable Fault 4 Hz Flash Nonrecoverable Fault	Recoverable Fault: Check Safety Outputs Are Not Shorted to GND, 24V DC or Each Other. Cycle Power.
	Amber Flash	Safe, Output On, Sensor Is Reaching Max. Sensing Distance	Re-adjust Distance Between Actuator and Sensor until Output LED Is Green

Unit Response Time


Application Wiring Examples

MSR127RP with One Sensor
Monitored Reset	Automatic Reset
MSR127RP with Three Sensors
Monitored Reset	Automatic Reset
MSR127RP with Two Sensors and One Light Curtain
Monitored Reset	Automatic Reset

MSR200 Series with Three Sensors and One Light Curtain

Manual Reset

Automatic Reset

MSR200 Series with Four Sensors

Manual Reset

Automatic Reset