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872C-D5NN18-E2

Description
Stopped Motion Units
File Size108KB,2 Pages
ManufacturerRockwell Automation / Allen-Bradley
Download Datasheet View All

872C-D5NN18-E2 Overview

Stopped Motion Units

Prosafe Trapped Key Interlock Switches
Stopped Motion Units
Specifications
Standards
EN292-1&2, EN1954-1, IEC/EN60204-1,
EN1088, IEC/EN60947-5-1, ISO13849-
1, ISO12100-1&2, ISO14119, GS-ET-19,
AS4024.1
Cat. 3 per EN 954-1 (ISO 13849-1)
BG and CE marked for all applicable
directives
0°C to +40°C (32°F to +104°F)
95% RH
100,000
15.1kN (3398lbs)
14Nm (124lb•in)
316L Stainless Steel
316L Stainless Steel
ABS Plastic
Stainless Steel Barrel, Plastic Face
Tamper resistant screws
2.0kg (4.4lbs)
24V DC, 110V AC and 230V AC
0.1 second to 40 minutes
2x inductive sensors
Category
Approvals
Operating Temperature
Humidity
Mechanical Operations
Maximum Shear Force to
Key
Maximum Torque to Key
Material
Trapped Key Components
Face Plate
Optional Box
Inductive Sensors
Assembly Fixing
Weight
Inputs
Time Range
Zero Speed Sensors
Description
The Stopped Motion Unit (SMU) is used in applications that require
the detection of stopped motion of mechanical parts of a machine.
The SMU uses inductive proximity sensors to detect motion and the
CU2 control unit to monitor the sensors.
The CU2 requires a PNP and an NPN output type proximity
sensors. When the proximity sensors stop detecting movement, the
CU2 activates its output, powering an internal solenoid. With the
solenoid energized, one or two trapped keys can be removed from
the SMU.
The removable trapped keys (one or two) can be used to continue
the next sequence in allowing access to the hazardous area.
See the CU2 control unit for details on setting the delay time.
Additional proximity sensors can be found in the
Sensors
catalogue.
Features
Stopped motion detection
NPN and PNP proximity sensors
Timed-delay output up to 40 minutes
Category 1 Stop
Replaceable code barrel assembly
Optional IP65 enclosure
The Prosafe Advantage
Stainless steel
construction.
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