ALARM 248, Illegal power section configuration
This alarm is only for F Frame drives. It is equivalent to Alarm 79. The
report value in the alarm log indicates which power module generated
the alarm:
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.
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.
Select the correct type code in par. 14-23
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 Drive Instruction Manual 8 Troubleshooting
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
8-11
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