MSR7R Datasheet, PDF (1/2 Pages) Allen-Bradley – Two Hand Relays

Safety Relays
Two Hand Relays
Minotaur MSR7R & MSR7C
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.
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.
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.
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
MSR7R/MSR7C
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.
Switch Circuit:
MSR7R monitors for
single fault that may
cause a danger.
Contactors:
Provides contactor
monitoring if two or
more contactors are
used in series.
Specifications
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
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
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
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.
MSR7R monitors itself for any fault.
4-50