23 January 2021
SLF3 fault on the ATV61/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.