MSR10RD ALLEN-BRADLEY [Allen-Bradley], MSR10RD Datasheet

MSR10RD

Manufacturer Part Number

MSR10RD

Description

Tongue Interlocks

Manufacturer

ALLEN-BRADLEY [Allen-Bradley]

Datasheet

1.MSR10RD.pdf (1 pages)

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Safeguarding Applications

Tongue Interlocks

Trojan 5, MSR10RD, Bulletin 100, PLC, Dual Channel

Circuit Status

Circuit shown with guard door closed, ready for motor starting (via signals from the PLC).

Operating Principle

The Minotaur MSR10RD immediate action outputs at 13-14 are connected to inputs at the PLC and the delayed outputs at D13-D14 are

connected to the contactor K1. The relevant PLC outputs are connected to contactor K2. If the guard is opened the Minotaur contacts 13-14

immediately signal the PLC to stop the motor. The PLC then has a pre-set time limit (adjustable at the MSR10RD) to execute its shut down

sequence and switch OFF contactor K2. After this time period has elapsed, the delayed action outputs D13-D14 will switch off contactor K1,

thus ensuring isolation even if there is a hardware, program or systematic fault in the PLC.

Fault Detection

If either contactor K1or K2 sticks ON, the motor will stop on command but the Minotaur cannot be reset (thus the fault is revealed to the

operator).

A single fault detected on the Minotaur input and output circuits will result in the lock-out of the system to a safe state (OFF).

All safety critical single faults will be detected at the next opening of the guard.

Comment

This system has the high integrity of hard wiring and allows a correctly sequenced shut-down which protects the machine and program.

18-10

Guard

Closed

24V DC

Ground

12 22

Trojan

Interlock

Switch

MSR10RD

Minotaur

S13

S14

S23

S24 X2 14 24

44 54 64

53 63

73 83 91

74 84 92

D14

D13

D22

D21

Outputs

D13-D14

D21-D22

Are

Delayed

Action

Outputs

Inputs

PLC

Bulletin 100S

or 700S

Momentary

Push

Button

Reset

L1 L2 L3

Contact

Protection

e.g. Thermal

Cut Out

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