User manual

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7.8.2 Conditional registers
7.8.3 Service Request: Enable and Event Registers
The conditional Registers are continuously monitored. When a change is detected in a
register bit which is enabled, the power supply will generate an SRQ message.
The SRQ message is: "!nn" terminated by CR, where the nn is the power supply address.
The SRQ will be generated either in Local or Remote mode.
Output is ON and the supply is not in
CV.
Output is On and the
supply in CV.
Output is ON and the supply is not in
CC.
Output is ON and the
supply in CC.
The power supply is
operating normally or
fault reporting is not
enabled.
See “OUT n”
command in Section
7.7.5.
One or more faults are active and
fault reporting is enabled (using
“FENA xx”).
1
2
Constant
Voltage
Constant
Current
No Fault
Table 7-7: Fault Condition Register
BIT
Fault name
Fault symbol
Bit Set condition
Bit Reset condition
Fixed to zero
Fixed to zeroSPARESpare bit
0 (LSB)
The AC input returns to normal.
AC fail has occurred.
OTP shutdown has
occurred.
The power supply cools down.
Foldback shutdown
has occurred.
The supply output is turned On by
front panel button or OUT 1
command.
The supply output is turned On by
front panel button or OUT 1
command.
The supply output is turned On by
front panel button or OUT 1
command.
OVP shutdown has
occurred.
Rear panel J "Shut
Off" condition has
occurred.
Rear panel J1 "Shut Off" condition
removed.
Front panel OUT
button pressed to Off.
Rear panel J1 Enable
terminals(J1-1&J1-14)
opened.
Rear panel J1 Enable terminals closed.
1
2
3
4
5
6
7(MSB)
AC Fail
Over
temperature
Foldback
Over
voltage
Shut Off
Output Off
Enable
AC
OTP
FOLD
OVP
SO
OFF
ENA
Table 7-8: Status Condition Register
BIT
Status name
Status symbol
Bit Set condition
Bit Reset condition
0 (LSB)
CV
CC
NFLT
One or more faults are
enabled and occur.
Fault Event Register cleared (FEVE?).
Supply is in Auto-
Restart mode (from
Front Panel or serial
command).
Supply is in Safe-Start mode (from
Front Panel or serial command).
Fold protection
enabled (from Front
Panel or serial
command).
Fold protection disabled (from Front
Panel or serial command).
Fixed to zero.
Fixed to zero.
Supply in Local mode.
Supply in Remote mode or Local-
Lockout mode.
3
4
5
6
7 (MSB)
Fault
active
Fold
Enabled
Spare bit
Local Mode
FLT
FDE
SPARE
LCL
AST
Auto-
Restart
Enabled