Omron G9SX-SM Safety Relay, 24V dc

The G9SX-SM standstill monitoring relay with solid state outputs is 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 inputs and outputs
Applicable up to Category 4 acc. EN 954-1

EN 954-1

• Solid state outputs
• Operation for two and three phase systems.
• Easy integration in Star and Delta wiring.
• Clear LED status of all in and outputs.
• Standstill can be monitored even when there is no space to install a sensor.
• No sensor required. G9SX-SM detects back electromotive force (BEMF) generated when the motor rotates identifying when the motor is rotating or in standstill.
• Ready to use standard configuration. No sensitivity adjustment required. User configuration is also available for fine tuning (manual adjustment).
• Applicable to inverter controlled systems.
• Can be used with an inverter, no malfunction due to the inverters dynamic brake or auto-tuning functions.
• No difficult settings required.
• Covers all standard applications.

• Safety standstill detection output 3
• Auxiliary output 2
• Rated voltage 24 V dc
• Spring Cage, terminal block type.

• Rated supply voltage 24 V dc.
• Operating voltage range -15% to 10% of rated supply voltage.
• Power consumption 4 W max. (power consumption of loads not included).
• Rated input voltage standstill detection input (between Z1 and Z2 and between Z3 and Z4) 480 V ac max. (120 Hz max).
• Internal impedance standstill detection input approx. 660 KΩ.
• EDM input approx 2.8 KΩ
• Output safety standstill detection PNP, load current 0.3 A dc max.
• Auxiliary output (output monitor/error) PNP, load current 100 mA dc max.
• Over-voltage category (IEC/EN 60664-1_ III
• Response time 50 ms max.
• Detection voltage standard configuration 10 mV max. User configuration 100 mV max.
• Maximum cable length for stand-still detection inputs 100 m max.
• Vibration resistance frequency 10 to 55 to 10 Hz. 0.375 mm single amplitude, 0.75 mm double amplitude.
• Mechanical destruction shock resistance 300 m/s².
• Mechanical malfunction shock resistance 100 m/s².
• Weight 200 g
• PLe / Safety Category 4 (ISO13849-1)