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Basic operation
Copyright © ITECH Electronic Co., Ltd. 23
The default set is Manual
Remote Inhibit (RI)
Used to turn off the output of the power supply. Can be used to turn off several
power supplies simultaneously.
The input terminals are In + and In -
The RI input has 3 modes: LATCHING, LIVE and OFF
OFF: The signal applied to the RI port does not affect the output state of the power
supply.
Latching: When In + and In – are shorted, the output will be OFF, the VFD
displays “RI” at the same time; When disconnect In + and In –, the output will
remain OFF.
Live: When In + and In – are shorted, the voltage will change to 0V, (check in
METER mode and ON state), the VFD displays “RI” at the same time; When
disconnect In + and In –, the power supply will output as the voltage setting. “RI” on
the VFD will disappear.
Note: when use RI function, the PORT item in menu should be selected to
RI/DFI.
Discrete Fault Indicator (DFI)
The output level of DFI (Out + and Out –) reflects the state of the register bit.
The DFI function can be activated by state changes of the QUES, OPER, ESB,
RQS bits
Off: The output level of the DFI port remains high.
QUES: The output level of DFI reflects the state of the QUES bit. When the QUES
bit is 1, the DFI output goes to a high level.
OPER: The output level of DFI reflects the state of the OPER bit.
ESB: The output level of DFI reflects the state of the ESB bit.
RQS: The output level of DFI reflects the state of the RQS bit.
When use DFI function, the PORT item in the menu should set to RI/DFI.
The operation:
1. Press (Shift) +
I-setI-set
(Menu) to menu, press to select Config,
press
Enter
to confirm.
2. Press to select Port, press
Enter
to confirm.
3. VFD display Trigger RI/DFI Digital, Press to select RI/DFI,
press
Enter
to confirm.
4. VFD return to Comm Port Trig RI DFI, press to select DFI,
press
Enter
to confirm.
5. Select DFI source, e.g., OPER, then press
Enter
to confirm.
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