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Safety Relays
Monitoring Safety Relays
Minotaur MSR123RT
Description
The Allen-Bradley Guardmaster Minotaur MSR123RT is a safety monitoring relay that provides two normally open safety contacts and a solid state auxiliary output for use with interfacing to PLCs.The MSR123RT can be connected to either a single or dual channel safety gate or e-stop, or can be connected to a light curtain that provides cross fault detection.
Reset and output monitoring is determined by the wiring
configuration. Automatic/manual reset can use a jumper or can be used to check operation of external contactors. Monitored manual requires the use of a manually operated normally open momentary switch.
The MSR123RT has 2 normally open safety rated outputs. The safety outputs have independent and redundant internal contacts to help ensure the safety function. The solid state auxiliary output is a PNP circuit with short circuit protection designed to indicate the status of the MSR123RT.
Features
?Category 4 per EN 954-1?Stop category 0
? 2 Safety contacts N.O.
? 1 Solid state PNP auxiliary contact ?Single/dual channel operation ?Cross fault monitoring
?Monitored or automatic reset
?
E-stop, safety gate or light curtain applications
Contact Current Limit Curve
c u r r e n t 2 x n u m b e r o f c o n t a c t p a t h s , (A 2)
Specifications
? See Output Ratings on page 1-29 for details. Consult factory for ratings not
shown.
Standards EN 954-1, ISO 13849-1, IEC/EN 60204-1, IEC 60947-4-1, IEC
60947-5-1, ANSI B11.19, AS4024.1Category Cat. 4 per EN954-1
Approvals C-Tick, CE marked for all
applicable directives, cULus and BG Power Supply 24V AC/DC, 115/230V AC
0.8 – 1.1 x rated voltage, 50/60Hz 0.9 – 1.1 x 24V DC Power Consumption 4W
Safety Inputs 1N.C., 2 N.C., Light Curtain Input Simultaneity
Infinite Max. Allowable Input Resistance
240 ohms
Reset Auto./Manual or Monitored Manual Outputs
2 N. O. Safety, 1 S.S. PNP Aux.Output Utilization per IEC 60947-4-1 (Resistive)AC-1: 8A/250V AC DC-1: 8A/24V DC
? Output Utilization per IEC 60947-5-1 (Inductive)A300, AC-15
6A/250V AC, 6A/125V AC N300, DC-13; 3A/24V DC; 6A/24V DC @ 6 ops/min Thermal Current (non switching)See limit curve
Max 10A in one circuit Output, Solid State 20mA @ 24V DC
Fuses, output external 6A slow blow or 10A quick blow Min. Switched Current/Voltage 10mA/10V Contact Material AgSnO 2 + 0.5μAu Power On Delay 1s Response Time 15ms Recovery Time 100ms
Indication LEDs
Green = Power on Green = K1 Closed Green = K2 Closed Impulse Withstand Voltage 2500V
Operating T emperature -5°C to +55°C (+23°F to +131°F)Humidity
90% RH
Enclosure Protection IP40 (NEMA 1), DIN 0470T erminal Protection IP20, DIN 0470Short Circuit Protection Solid state outputs Pollution Degree 2
Conductor Size 0.2-4mm 2 (24-12AWG)Mounting 35mm DIN rail Weight 24V DC 110 and 230V AC
270g (0.353lbs)350g (0.474lbs)Electrical Life
220V AC/4A/880VA/cos ?=0.35220V AC/1.7A/375VA/cos ?=0.6
30V DC/2A/60W 10V DC/0.01A/0.1W 100,000 operations 500,000 operations 1,000,000 operations 2,000,000 operations Mechanical Life 2,000,000 operations Vibration 10-55Hz, 0.35mm Shock
10g, 16ms, 100 shocks
Safety Relays
4-33
Monitoring Safety Relays
Minotaur MSR123RT
Product Selection
Dimensions—mm (inches) Block Diagram
Typical Wiring Diagrams
Inputs Safety Outputs
Auxiliary Outputs
Power Supply Catalogue Number
1 N.C.,
2 N.C. or Light Curtain
2 N.O.
1 S.S. PNP
24V AC/DC 440R-J23106115V AC 440R-J23104230V AC
440R-J23103
115/230V Supply, 24V DC Light Curtain, Monitored Manual Reset, Monitored Output
Single Channel Safety Gate,
Automatic Reset, No Output Monitoring
Dual Channel E-Stop,
Monitored Manual Reset, Monitored Output