Safety Relays Two Hand Relays Minotaur MSR7R & MSR7C Specifications Description The Allen-Bradley Guardmaster Minotaur MSR7R & MSR7C are logic units for monitoring and interfacing two hand control devices with a safety related circuit. The MSR7R is for use with mechanical switches and the Allen-Bradley Bulletin 800Z Zero Force Touch Buttons. The MSR7C is for use with electronic-sensing (for example, capacitive or photoelectric) palm buttons because the MSR7C will not turn its output ON if a power interruption occurs while a person’s hands are on the buttons. The MSR7 has 3 N.O. safety outputs and 1 N.C. auxiliary output. The safety outputs have independent and redundant internal contacts to help ensure the safety function. The auxiliary contact is a nonsafety output intended to provide an external signal about the status of the safety outputs. Standards EN574, EN954-1, ISO13849-1, IEC/EN60204-1, IEC60947-5-1, ANSI B11.19, AS4024.1 Category Cat. 3 per EN 954-1 (ISO 13849-1) Cat. IIIb per EN 574 Approvals C-Tick, CE marked for all applicable directives, cULus & TÜV Power Supply 24V AC/DC, 110V AC or 230V AC Power Consumption <4VA Safety Inputs 1 N.C & 1 N.O. Input Simultaneity 0.5s Maximum Input Resistance 500 W Reset Automatic Outputs 3 N.O. Safety; 1 N.C. Auxiliary ➊ Output Utilization per IEC 60947-5-1 (Inductive) B300, AC-15 4A/250V AC, 4A/125V AC P300, DC-13; 2A/24V DC Thermal Current (non switching) 4A Fuses Input (Internal, replace.) Output (external) 500mA time lag 5A quick acting Min. Switched Current/Voltage 10mA/10V Maximum Dropout Time 50ms Indication LEDs Red = Power On Green = K1Closed Green = K2 Closed Impulse Withstand Voltage 2500V The MSR7 requires the two switches to be operated within 0.5 seconds of each other and will only authorize the ON state while both switches are held down. If one of the switches is released, the output goes to the OFF state and the machine cannot be restarted until both buttons are released and then operated simultaneously. Installation Group C in accordance with VDE 0110 Pollution Degree 3 Operating Temperature -10°C to +55°C (+14°F to +131°F) Humidity 90% RH The MSR7 conforms to EN574 which gives specific requirements for two hand control units and logic devices. Categories IIIB or IIIC are achieved depending upon the wiring. Enclosure Protection IP40, (NEMA 1), DIN 0470 Terminal Protection IP20, DIN 0470 Conductor Size 1 x 2.5mm2 (14AWG) stranded, 1 x 4mm2 (12AWG) solid Torque Settings—terminal screws 1N⋅m (8.85lb⋅in) Case Material Red Polycarbonate Features • • • • • • Safety category 3 per EN 954-1 Safety category IIIb per EN 574 Two-hand control unit 3 N.O. safety outputs 1 N.C. auxiliary output 45mm wide housing Applications Shown with Mechanical two hand push button station or two capacitive switches Contactor monitoring circuit Contactor switching circuit Supply inclusive of switching circuit Contactor Monitored by Minotaur The safety function is ensured by the Minotaur. MSR7R/MSR7C Contactors: Provides contactor monitoring if two or more contactors are used in series. Switch Circuit: MSR7R monitors for single fault that may cause a danger. MSR7R monitors itself for any fault. 4-50 Mounting 35mm DIN rail Weight 510g (1.12lbs) Electrical Life 220V AC/4A/880VA cosϕ=0.35 220V AC/1.7A/375VA cosϕ=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 0.75mm (0.30in) peak, 10-55Hz Shock 30g, 11ms half sine ➊ See Output Ratings on page 1-29 for details. Consult factory for ratings not shown. Safety Relays Two Hand Relays Minotaur MSR7R & MSR7C Product Selection Minotaur Inputs Safety Outputs Auxiliary Outputs Input Buttons Power Supply Catalogue Number 24V AC/DC 440R-D23021 110V AC 440R-D23022 Mechanical or Bulletin 800Z MSR7R 1 N.C. & 1 N.O. 3 N.O. 1 N.C. Capacitive or Photoelectric MSR7C 230V AC 440R-D23023 24V AC/DC 440R-D23024 110V AC 440R-D23025 230V AC 440R-D23026 Accessories Description Page Number Catalogue Number 500mA Fuse 14-6 440R-A31562 Dimensions—mm (inches) Block Diagram 120 (4.72) A1 45.5 (1.79) A2 X1 X2 S13 S14 K3 24VDC ~ S23 K5A K5 K4 S24 13 23 33 41 K3 K4 K2 K1 K1 K2 K5 K1 73 (2.87) K5 A1 A2 X1 K4 K3 S23 S24 K2 14 24 34 42 13 23 33 41 K4 K1 K1 K5 Timer K2 K4 24VDC 35mm DIN Rail Mounting K4 X2 K5 ~ K1 K1 K2 Q1 K2 K2 K3 K3 K1 K2 K1 S13 S14 K3 K2 14 24 34 42 Typical Wiring Diagrams L1 L1 Switch 2 Switch 2 Reset E-Stop S23 L1 L2 L3 L1 L2 L3 S24 A1 13 23 33 41 S23 X1 S24 A1 13 23 33 41 X1 K1 MSR7C K1 MSR7R K2 K2 S13 S14 A2 14 24 K1 K2 Switch 1 34 42 S13 X2 S14 A2 14 24 Switch 1 M 34 42 X2 M K1 K2 N N Dual Channel Two-Hand Control, Automatic Reset, Dual Channel Output, Monitored Output Dual Channel Two-Hand Control, Automatic Reset, Dual Channel Output, No Monitored Output Application Details Replacement Fuse 4-51