Record Power DML320 Original Instruction Manual page 20

10. Operation
Error Codes
Under certain conditions the digital display will show error codes to indicate
the nature of a particular error with the machine or its use.
Error Code
20
Error
Hardware Protection Mode
Possible damage to electronic controller.
Software Protection Mode
Possible damage to electronic controller software.
Low Voltage Abnormality
Protection Mode
Voltage is lower than 165 V.
Spindle Direction Protection Mode
The spindle direction has been changed
during operation.
High Voltage Abnormality
Protection Mode
Voltage is higher than 265 V.
Motor Speed Protection Mode
Motor speed has been increased sharply,
indicating possible user error.
Action
Turn off the machine and re-start once the digital
display has cleared. If error code still appears
the controller hardware may be damaged and
customer services should be contacted.
Turn off the machine and re-start once the digital
display has cleared. If error code still appears
the controller software may be damaged and
customer services should be contacted.
It is normal for this error code to appear for a
short period after turning the machine off. If it
appears during operation, turn off the machine
and re-start once the digital display has cleared.
If the error code is still shown the power supply
must be checked and corrected if necessary.
Turn off the machine and re-start once the digital
display has cleared.
Turn off and re-start the machine. If error code
still appears, check and correct the power supply.
Turn off the machine and re-start. If error code
still appears, the motor or controller may be
damaged.