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What does an SLF3 fault mean on the ATV61 and ATV71 drives?
Altivar ATV61 and ATV71
Drive is tripping on SLF3 fault.
HMI Com fault is a HMI/ keypad communicating with the graphics display terminal.
Menu 1.6 If the Ref or CMD is set to HMI and if the keypad is disconnected you will trigger a SLF3 HMI coms fault.
reconnect the keypad and power cycle the drive to clear the fault.