440R-S35011, 440R-S35012, 440R-S35013,440R-S35014, 440R-S35015, 440R-S35016 Back EMF Monitoring Relay Module Installation Instructions
■The Allen-Bradley Guardmaster® MSR55P back EMF modules are suitable to monitor the standstill of all electric motors that generate a remanence voltage while coasting to stop.
■The MSR55P standstill module is connected to the motor terminals and measures the induced back EMF voltage. Two redundant measuring channels are used (L2-L1 and L3-L1). If the back EMF voltage drops to 0V simultaneously in both channels, it indicates standstill and the output relay is energized.
■The voltage threshold that indicates a standstill on the MSR55P module is adjustable. This standstill allows the unit to work with different types of motors in various applications. The standstill time Ts (time delay between detection and energizing of the relay) is also adjustable.
■The MSR55P standstill module detects a broken wire on the measuring inputs L1/L2/L3. If a broken wire is detected, the relay outputs go into safe state (as with running motor).
●Features
■Safe standstill detection on three-phase and single-phase motors
■Performance Level is PLe
■Category 4 to EN ISO13849-1: 2008
■Safety integrity level (SIL) 3 to IEC/EN 61508
■SIL Claim Limit (SIL CL) 3 to IEC/EN 62061
■No external sensors necessary
■Standstill detection independent of direction
■Broken wire detection
■Three N.O. redundant voltage-free safety contacts and one redundant N.C. monitoring contact for up to 250V AC
■Two semiconductor status outputs
■Monitors motor voltage up to 690V AC
■Adjustable voltage setting
■ Adjustable standstill time delay
■ LED indicators for standstill, event of line breakage and operation voltage
■Suitable for operation with inverters
■Removable screw terminals
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440R-S35011 、 440R-S35012 、 440R-S35013 、 440R-S35014 、 440R-S35015 、 440R-S35016 |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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February 2020 |
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Ver 01 |
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440R-IN081B-EN-P,10005051946 |
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630 KB |
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