Rockwell Automation Allen-Bradley Guard master MC2 Product Information

Product Information
Original Instructions
Magnetically Coded Non-contact Switch (MC2)
Catalog Numbers 440N-Z21W1PA, 440N-Z21W1PB, 440N-Z21W1PH
ATTENTION: Read this document and the documents that are listed in
Additional Resources on page 2
operation of this equipment before you install. Users are required to
familiarize themselves with installation and connection instructions and
requirements of all applicable codes, laws, and standards.In accordance with
applicable codes of practice, suitably trained personnel are required to
implement installation, adjustments, service initiation, use, assembly,
disassembly, and maintenance. If this equipment is used in a manner that the
manufacturer does not specify, the protection that is provided by the
equipment may be impaired.
ATTENTION: The presence of spare actuators can compromise the integrity
of 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.
WARNING: Do not defeat, tamper, remove, or bypass this unit. Severe injury to
personnel could result.
Wiring
Not
connected
Safety A
Safety B
Pin
1
2
3
4
5
6
7
8
(1) Operating voltage is 24V DC +10%/-15% Class 2 SELV or PELV power supply.
Recommended Mating Cable
The standard cable lengths are 2 m, 5 m, and 10 m. Use catalog number 889D-F8AB-2 [2 m (6.5 ft)] for the
standard length. Replace the 2 with 5 [5 m (16.4 ft)] or 10 [10 m (32.8 ft)] for other standard cable lengths.
IMPORTANT When the MC2 is used with any MSR100 series relay, for the diagnostic
function to operate correctly the red and gray wires (Safety A) must be
connected to S11 and S12.
about installation, configuration, and
+24V
Aux
1
2
Gnd
3 8 7
4 6
5
Safety B
Safety A
Wire Color Signal
White PNP Aux
(1)
Brown
+24V
Green Not connected
Yellow Safety B
Gray Safety A
Pink Safety B
Blue 0V
Red Safety A
Status/Diagnostic Indicator
Table 1 - Status Indicators (per IEC 60073)
State Status
Off Not powered
Off Overload
Red Actuator not present
Green Actuator present
Actuator present
Green flashing Actuation not present on other switches
or wiring fault
Mounting Information
Use nonremovable screws, bolts, or nuts to mount the switch and actuator. Do not over torque the
mounting hardware. It is recommended to use M3 screws and washers throughout.
Maximum torque is 1 N•m (8.86 in•lb). Use nonmagnetic mounting hardware.
Position the switch and actuator so they are aligned with each other.
Mounting for Maximum Misalignment
Mount the sensor to the fixed part of the guard and the actuator to the movable section. Keep the sensor
and actuator within the sensing range detailed as shown in
Minimum distance between sensors is 50 mm (1.97 in.).
IMPORTANT
To obtain maximum switching distance, center the switches ±4 mm (0.24 in.).
Figure 2 - Sensor Alignment
To obtain maximum switching
distance center switches
± 4 mm (0.16 in.)
To prevent damage, it is recommended that a 2 mm (0.08 in.)
gap be maintained between the actuator and sensor.
To prevent damage, it is recommended
that a 2 mm (0.08 in.) gap be maintained
between the actuator and sensor.
Sensor
Distance 8...14 mm (0.31...0.55 in.)
Actuator
Status
Indicator
Troubleshooting
Check supply, check wiring to controller A
Check AUX connections
If actuator present check misalignment.
—
Check wiring to controller.
Check actuators on other switches
Figure 3 on page 2.
Actuator Sensor