TDK-Lambda Genesys series Technical Manual page 50

Lan interface
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These are the bit assignments of the Questionable Condition Condition Register:
BIT
VALUE
0
1
1
2
2
4
3
8
4
16
5
32
6
64
7
128
8
256
9
512
10
1024
11
2048
12 to 15
N/A
Syntax:
Example:
Response:
Example:
7.8.15. Set the Questionable Condition Enable Register
When one or more bits in the Questionable Condition Condition Register (see section
7.8.14 above) are set, a bit can be set in the Status Byte (*STB,see section 7.8.5). This is
done by setting bits in the enable register. Changing the value of the enable register has no
affect on the value in the condition register
Syntax:
Parameter:
Example:
Query:
7.8.16. Read the Questionable Condition Event Register
This is a fault event register, which means bits are set to "1" as faults occur and they are not
cleared until the register value is read or the *CLS command is sent. For the fault to be
latched as an event, the event bit must be enabled as described in section 7.8.15.
The bit assignments are the same as the Questionable Condition Condition Register,
described in section 7.8.14 above
Syntax:
Example:
SYMBOL
DESCRIPTION
0 or
In single LAN supply, bit is always 0.
ISUM
In Multi-drop system, is Instrument Summary bit.
AC
AC Fail fault
OTP
Over-temperature fault
FLD
Fold-back protection fault
OVP
Over-voltage protection fault
SO
Shut-off fault, using the "J1" analog input
OFF
Output Off, using the front panel button
ENA
Output Enable fault, using the "J1" analog input
INPO
Internal Input Overflow
INTO
Internal Overflow
ITMO
Internal Time Out
ICOM
Internal Comm Error
0
Not used
STATus:QUEStionable:CONDition?
STAT:QUES:COND?
<nnn>, a number from 0 to 4095
64 (operator turned the output off using the front panel OUT button)
STATus:QUEStionable:ENABle <nn>
is a number from 0 to 4095. The bit assignments are the
<nnn>
same as the table above
STAT:QUES:ENAB 4095 will cause bit 3 in the Status Byte to
STAT:QUES:ENAB?
STATus:QUEStionable[:EVENt]?
STAT:QUES?
46
be set if the supply shuts down for any fault
will return 4094 in the example
(bit 0 always 0 for single LAN supply)

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