G9SX-SM Flexible safety unit Standstill monitoring unit Safe standstill monitoring unit based on Back-EMF operation for two- and three- phase systems. • Ready to use – covering all standard applications without additional setup • Easy integration in star- and delta wiring • Clear LED diagnosis of all in- and output signals for easy maintenance • Applicable up to PLe according to EN ISO 13849-1 Ordering information Safety standstill monitoring unit Safety outputs *1 Instantaneous Auxiliary outputs *1 Power input Rated supply voltage Terminal block type Order code 3 (Semi-conductors) 2 (Semi-conductors)24 VDCScrew terminalsG9SX-SM032-RT Spring-cage terminals G9SX-SM032-RC *1PNP transistor output Specifications Ratings of standstill monitoring unit Power input ItemG9SX-SM032-_ Rated supply voltage24 VDC Inputs ItemG9SX-SM032- Input voltageStandstill detection input (Z1-Z2/Z3-Z4) AC 415Vrms + 10% max. Maximum power supply frequency for AC induction motor 60 Hz max. Internal impedance Standstill detection input: approx, 660 k EDM input: approx. 2.8 k Outputs ItemG9SX-SM032-_ Safety standstill detection output Sourcing output (PNP) Load current: 300 mA DC max. Auxiliary outputSourcing output (PNP) Load current: 100 mA DC max. Application example 3-phase motor3-phase motor with star-delta wiring Feedback loop KM1/KM2 EDM input KM1 +24V KM1 KM1 KM2 KM2 A1 T31 T32 Z1 Z2Z2 Z3Z4 KM2 +24V FUSE G9SX-SM032 Inverter A1 T31 T32 Z1 Z2 Z2 Z3 Z4 Control circuit A2 ES1 ES2 ES3X1 X2 FUSE U VW M G9SX-SM032 Control circuit U2 V2 W2 M U1 V1 W1 KM4 lamp PLCetc. A2 ES1 ES2 ES3 X1 X2 lamp PLCetc. Standstill detected KM3 Standstill detected 504
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