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83-507-5002 Rev. B
66
The SRQ message is: “Inn” terminated by CR, where the nn is the power supply address. The
SRQ will be generated either in Local or Remote mode.
Refer to Tables 7-10 to 7-13 for details of the Enable and Event registers.
1. Fault Enable Register
The Fault Enable Register is set to the enable faults SRQs.
Table 7-10: Fault Enable Register
BIT
Enable
bit name
Fault symbol Bit Set condition Bit reset condition
0 (LSB) Spare bit SPARE
1 AC Fail AC
2 Over Temperature OTP
3 Foldback FOLD
4 Over Voltage OVP
5 Shut Off SO
6 Output Off OFF
7(MSB) Enable ENA
User command:
“FENA nn” where
nn is hexadecimal
User command: “FENA nn”
where nn is hexadecimal (if
nn=”00”, no fault SRQs will
be generated).
2. Fault Event Register
The Fault Event will set a bit if a condition occurs and it is Enabled. The register is cleared when
FEVE?, CLS or RST commands are received.
Table 7-11: Fault Event Register
BIT
Enable
bit name
Fault symbol Bit Set condition Bit reset condition
0 (LSB) Spare bit SPARE
1 AC Fail AC
2 Over Temperature OTP
3 Foldback FOLD
4 Over Voltage OVP
5 Shut Off SO
6 Output Off OFF
7(MSB) Enable ENA
Fault condition
occurs and it is
enabled.
The fault can set a
bit, but when the
fault clears the bit
remains set.
Entire Event Register is
cleared when user sends
“FEVE?” command to read
the register.
“CLS” and power-up also
clear the Fault Event Reg-
ister. (The Fault Event
Register is not cleared by
RST)