Communication GUI Guide
GXE600 Series
TDK-Lambda
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4.3.1 GXE PS Settings 2
Click the [Read] button to display the device settings of GXE. (All data all at once)
T he display data can be changed within the range described in "7. GXE register list".
Display and edit area
[Write] Button
[Read] Button
Item
Overview
PF T hreshold
Sets the PF (Power Fail) threshold value for the signal output.
The threshold value is applied to the CV reference value or
the CC reference value according to the mode setting.
The value can be set within the range of 50 [%] to 95 [%] of CV reference value or
or CC reference value. (factory setting: 80%)
PF Mode
Sets the operation mode to perform PF judgment.
Click the display area to select the mode.
CV PF : When the output voltage falls to the PF threshold, the PF signal is output.
CC PF : When the output current becomes less than the PF threshold, the PF signal is output.
Factory setting
：
CV PF
PF Count
Set the time to check keeping PF state from when PF is detected until
when PF signal is actually output.
Setting the PF count prevents the PF signal from being erroneously output due to noise or the like.
The value can be set in the range of 0 [x 1 ms] to 100 [x 1 ms].
(Factory setting: 0 count = 0 ms)
Auto Recovery
Sets the recovery time of output when protection set for auto recovery is activated.
If the protection factor continues to occur, the output is shut down again
after the automatic recovery time has elapsed.
At the same time, if protection set for latch stop is occurring, output will not be recovered
even if the automatic recovery time elapses.
The value can be set in the range of 100 [x 10 ms] to 1000 [x 10 ms].
(Factory setting: 100 count = 1 sec)
· Example of PF setting (24 V model)
CV reference value : 0.85 (24 V x 0.85 = 20.4 V)
PF Mode : CV PF
PF Threshold : 80 %
PF threshold voltage = CV reference value x PF threshold = 20.4 V x 80 % = 16.32 V
Please change PF settings as appropriate according to your system.
If the automatic recovery time is set to be very short and the automatic recovery is repeated,
the cooling time during power off may be insufficient and the operation of "OTP" or the power supply may be damaged.
By clicking the [Write] button arranged for each item, the changed data is written to GXE.