Rockwell Automation SensaGuard 440N-Z21SS2 Series Installation Instructions Manual
Installation Instructions
WARNING
SensaGuard™ Rectangular Flat Pack - 440N-Z21SS2*
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.
The presence of spare actuators compromise the
ATTENTION
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.
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
Assured Make 15 mm
Assured OFF 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 series
Operating Voltage
Unlimited. See Unit Response Time
section on page 5.
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 Valox® DR 48
Actuator Materia l Valox® DR 48
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 (Low Coding)
Safety Classification
Standards
Certifications TÜV, CE Marked for all applicable directives, cULus
Functional Safety Data
PLe, Cat 4 per ISO 13849-1
SIL CL3 per IEC 62061 and IEC 61508
CSA 22.2 No. 14, ISO13849-1, ISO 14119, IEC 60947-5-3,
IEC 61508, IEC 62061, and UL508
-9
: 1.12 - 10
PFH
D
Operating Temperature [C (F)] -10…+55° (14…131°)
Operating Humidity 5…95% relative
Washdown Rating NEMA 3, 4X, 12, 13, IP69k
Shock & Vibration
Radio Frequency
IEC 68-2-27 30 g, 11 ms/IEC 68-2-6
10…55 Hz
IEC 61000-4-3
IEC 61000-4-6
Protection
24.99
(0.984)
88.14
(3.47)
10.66
(0.42)
7.11
(0.28)
6.78
(0.267)
4.57
(0.18)
Ø5.08
(Ø0.2)
4.57
(0.18)
68.31
(2.689)
18.54
(0.73)
72.9
(2.87)
77.98
(3.07)
20.65
(0.813)
24.99
(0.984)
88.14
(3.47)
20.65
(0.813)
4.57
(0.18)
18.54
(0.73)
10.67
(0.42)
13.41
(0.528)
9.96
(0.392)
QD
CONNECTOR
VERSION
M12 x 1
¯ 9.7
(¯ 0.38)
4.57
(0.18)
Ø5.08
(Ø0.2)
4.57
(0.18)
77.98
(3.07)
62.53
(2.462)
57.96
(2.282)
82.55
(3.25)
Short-circuit Incorporated
Current Limitation Incorporated
Overload Incorporated
False Pulse Incorporated
Tra nsi ent Noi se In cor por ated
Reverse Polarity Incorporated
Overvoltage Incorporated
Thermal Shutdown/Restart Incorporated
Electrical Life
10 x 10
Dimensions [mm (in.)]
6
Mode of Operation
Status indicators:
• “Status/Diag” LED illuminates green: Door/guard closed,
safety outputs active.
• “Status/Diag” LED illuminates red: Door/guard open,
safety outputs off.
• “Status/Diag” LED flashes red: Unit failure. See Diagnostic
section on page 4.
• “Status/Diag” LED flashes green: Safety inputs off.
• “Status/Diag” LED flashes amber: Sensor is approaching
max. sensing distance. (-N and -N9 models only)
2
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 shown in
the sensing/misalignment curve.
Nut Torque Specification
Switch/Actuator: 2.26 N•m (20 in•lb)
Minimum Distance Between Sensors
200.00 mm
5
10
15
20
25
30
35
SIDE
LOBES
Sensing Distance* (mm)
0
SIDE
LOBES
ASSURED
SENSING
DIS TANC E
* when the actuator approaches the sensor in the x-direction or
from above (z-direction) and is misaligned in the y-direction
Sensor Actuator
Misalignment (mm)
Assured Make: 15 mm
Assured OFF: 35 mm
x
z
y
Sensor
Actuator
Actuator
IMPORTANT
5
10
15
20
25
30
35
Sensing Distance** (mm)
0
23
23
50
40
30
20
30
0
10
20
10
40
50
50
40
30
20
30
0
10
20
10
40
50
Misalignment (mm)
** when the actuator approaches the sensor in the
x-direction and is misaligned in the z-direction.
Sensor Actuator
ASSURED
SENSING
DISTANCE
Assured Make: 15 mm
Assured OFF: 35 mm
x
Sensor Actuator
zz
Misalignment Curve
Wiring Diagram
Allow a minimum spacing of 9 mm (0.35 in.) if the
actuator and sensor faces approach laterally (from
the y-direction). This will prevent false triggering
due to the side lobe areas.
To ensure proper functioning of margin indication
(non-safety), z-direction approach is not
recommended for -N and -N9 models.
3
8-Pin Unit
Pin Number Wire Color Signal
1 White Aux. Outputs
2Brown+24V
3GreenNA
4 Yellow OSSD 2, +24V Input
5 Grey OSSD 1
6 Pink OSSD 2
7Blue0V
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.
Green
1
2
3
8
476
Red
Yellow
5
Brown
White
Blue
Pink
Grey
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