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User Manual
D750
DC Power Supply
4.2.5.5 Acknowledge
The power supply acknowledges received commands by returning "OK" message. If an
error is detected, the power supply will return an error message. The rules of checksum
apply also to the acknowledge.
4.2.5.6 Error message
If an error is detected in a command or query, the power supply will respond with an error
message. Refer to section 4.2.6 for details.
4.2.5.7 Backspace
The backspace character (ASCII 8) clears the last character sent to the power supply.
4.2.6 Error Messages
The power supply will return error messages for illegal commands and illegal programming
parameters. Refer to Table 4-6 for programming error messages and Table 4-7 for
commands error messages.
Error Code
E01
E02
E04
E06
E07
Error Code
C01
C02
C03
C04
C05
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Table 4-6: Programming error messages
Description
Returned when program voltage (PV) is programmed above acceptable range.
Example: PV value is above '105% of supply rating' or 'PV above 95% of OVP
setting'.
Returned when programming output voltage below UVL setting.
Returned when OVP is programmed below acceptable range. Example: OVP
value is less than '5% of supply voltage rating' plus 'voltage setting'.
Returned when UVL value is programmed above the programmed output
voltage.
Returned when programming the Output to ON during a fault shut down.
Table 4-7: Commands error messages
Description
Illegal command or query
Missing parameter
Illegal parameter
Checksum error
Setting out of range
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