ALARM 250, New spare part
The power or switch mode power supply has been exchanged. The ad-
justable frequency drive type code must be restored in the EEPROM. Se-
lect the correct type code in par. SP-23
Typecode Setting
according to
the label on the unit. Remember to select ‘Save to EEPROM’ to complete.
ALARM 251, New type code
The adjustable frequency drive has a new type code.
VLT HVAC Low Harmonic Drive Instruction
Manual
9 Troubleshooting
MG.16.A1.22 - VLT
®
is a registered Danfoss trademark
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9