Danfoss VLT AutomationDrive FC 301

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7.4.90 WARNING 165, ATEX ETR Freq.Lim.Warning
Cause
The drive has run for more than 50 s below the allowed minimum frequency (parameter 1-98 ATEX ETR Interpol. Points Freq.).
7.4.91 ALARM 166, ATEX ETR Freq.Lim.Alarm
Cause
The drive has run for more than 60 s (in a period of 600 s) below the allowed minimum frequency (parameter 1-98 ATEX ETR Interpol.
Points. Freq.).
7.4.92 WARNING 250, New Spare Part
Cause
A component in the drive system has been replaced.
Troubleshooting
Reset the drive system to restore normal operation.
7.4.93 WARNING 251, New Typecode
Cause
The power card or other components have been replaced, and the typecode has changed.
AQ267037727118en-000101 / 130R0300 | 59Danfoss A/S © 2021.01
Maintenance, Diagnostics, and
Troubleshooting
VLT® AutomationDrive FC 301/FC 302
Operating Guide