KIKUSUI Electronics Corp.
334
Of the parameters {1|2|3}, 1 represents U phase, 2 represents V phase, and 3 rep-
resents W phase.
STAT:OPER:INST:ISUM2?
ʻ
Check whether the CV bit of the V phase is set.
STATus:QUEStionable
The QUEStionable Status register is used to record events and notifications that oc-
cur during abnormal operations.
To check whether the overvoltage protection function has been activated, check the
OV bit (bit 0) of the STATus:QUEStionable register.
STAT:QUES? 'Check whether the OV bit is set.
Even if bit 0 is true, you cannot tell on which phase the overvoltage protection func-
tion has been activated. To check which phase is operating abnormally, check the
STATus:QUEStionable:INSTrument subregister.
STAT:QUES:INST?
ʻ
Check which phase is operating abnormally.
All channels whose corresponding bits are true are operating abnormally. You can
determine how the specified phase is operating abnormally by checking the STA-
Tus:QUEStionable:INSTrument:ISUMmary{1|2|3} subregister of the channel.
Of the parameters {1|2|3}, 1 represents U phase, 2 represents V phase, and 3 rep-
resents W phase.
STAT:OPER:INST:ISUM2?
ʻ
Check whether the OV bit of the V phase is set.
■
PON (Power ON) bit
The PON bit (bit 7) of the event status register is always set when the product is
turned on. To generate a power-on SRQ to track power failures and power supply line
errors, use PON as follows.
1
Set *PSC (Power-on Status Clear ) to 0 (or OFF).
Enable the backup functions for event status enable register and service request
enable register settings. (*PSC 0)
2
Set the PON bit (bit 7) of the event status enable register.
This enables the transmission of power-on events to the higher layer. (*ESE 128)
3
Set the ESB bit (bit 5) of the status byte enable register.
This enables the generation of SRQs based on standard events. (*SRE 32)
