G9SE– Troubleshooting failure detection (EN)

Troubleshooting failure detection with the G9SE When G9SE detects a fault, LED indicators will blink to show any information related to the fault. When the PWR indicator blinks, check the following table and take the specified measures. Follow up by applying supply voltage to the G9SE . Valid for models: G9SE-201, G9SE-401, G9SE-221-TX LED indicator Expected causes of the faults Checking points and measures to take PWR IN1 IN2 OUT1 OUT2 Blinking Blinking -- -- -- 1) Failures involving the wiring of safety input 1. 2) Failures of the parts of the circuits of safety input 1. 1) Check the wiring to T11 and T12. 2) Replace with a new product.

-- Blinking -- -- 1) Failures involving the wiring of safety input 2. 2) Failures of the parts of the circuits of safety input 2. 1) Check the wiring to T21 and T22. 2) Replace with a new product. Safety inputs: ON-state 1) Failures involving the wiring of feedback/reset input. 2) Failures of the parts of the circuits of feedback/reset input. 1) Check the wiring to T31, T32, and T33. 2) Replace with a new product. Light is on Light is on -- -- Safety inputs: OFF-state Light is off Light is off -- -- -- -- Blinking Blinking 1) Failures of the parts or relays of the circuits of the safety output. 1) Replace with a new product.

-- -- -- Blinking 1) Mismatch of the two off-delay time preset switches. 1) Check both of the two off- delay time preset switches. All indicators are blinking 1) Supply voltage outside the rated value. 1) Check the supply voltage to the G9SE. All indicator lights are off 1) By excessive electro-magnetic disturbance. 2) Failures of the parts of internal circuits. 1) Check the disturbance level around the G9SE and its related system. 2) Replace with a new product.

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When indicators other than PWR indicator are blinking while the PWR indicator is lit up, check the following table and take the specified measures. After removing the fault, turn both safety inputs to the OFF state. Valid for models: G9SE-201, G9SE-401, G9SE-221-TX LED indicator Expected causes of the faults Checking points and measures to take PWR IN1 IN2 OUT1 OUT2 Light is on Safety inputs: ON-state 1) Mismatch between safety input 1 and safety input 2. (OFF timing) 1) Check the wiring from safety input devices to the G9SE or check the sequence of safety input devices. Blinking Blinking -- -- Blinking Light is off Light is off Blinking

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