Delta VFD-ED Series Drive
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Jun 06, 2022 12:39 pm
How can resolve problem STO fault in delta VFD-ED series drive ?
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Jun 06, 2022 12:40 pm
STO Safe Torque Off - Safe Torque Off function is enabled.
corrective action
1. Check the wiring for STO1/SCM1 and STO2/SCM2.
2. Reset the emergency switch (ON) and reboot the motor drive.
3. Check the voltage at least > 11 V.
4. Check the wiring between STO1/STO2 and E24V, and the wiring between SCM1/SCM2 and DCM.
5. After checking all the wiring, reboot the motor drive.
