TDK-Lambda Genesys Series - Read the Questionable Condition Event Register

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8303460000 Rev A IA672-04-01-Rev. I
11.8.14. Read the Operational Condition Event Register
This is a settings and modes event register, which means bits are set to “1” when a
condition occurs and they are not cleared until the register value is read or the *CLS
command is sent. For the condition to be latched as an event, the event bit must be
enabled as described in section 11.8.13 above.
The bit assignments are the same as the Operational Condition Condition Register,
described in section 11.8.12 above.
Syntax: STATus:OPERation[:EVENt]?
Example: STAT:OPER?
Response: <nnn>, a number from 0 to 255
Example: 2 (the supply went into constant current mode)
11.8.15. Read the Questionable Condition Condition Register
This register reports fault conditions which will cause the power supply output to turn
off. The faults include:
 User settable faults (enable, shut-down, over-voltage, fold-back, output off).
 Environmental faults (over-temperature, AC fail).
 Internal firmware faults (four faults).
This is a conditional register. The bits are set to “1” when the fault occurs and cleared
when the fault is cleared. The values are read-only. See the Genesys™ Technical
Manual for more details on faults.
These are the bit assignments of the Questionable Condition Condition Register:
BIT
VALUE
SYMBOL
DESCRIPTION
0
1
0
Not used
1
2
AC
AC Fail fault
2
4
OTP
Over-temperature fault
3
8
FLD
Fold-back protection fault
4
16
OVP
Over-voltage protection fault
5
32
SO
Shut-off fault, using the “J1” analog input
6
64
OFF
Output Off, using the front panel button
7
128
ENA
Output Enable fault, using the “J1” analog input
8
256
INPO
Internal Input Overflow
9
512
INTO
Internal Overflow
10
1024
ITMO
Internal Time Out
11
2048
ICOM
Internal Comm Error
12 to 15
N/A
0
Not used
Syntax: STATus :QUEStionable :CONDition ?
Example: STAT :QUES :COND ?
Response: <nnn>, a number from 0 to 4095
Example: 64 (operator turned the output off using the front panel OUT button)