TDK-Lambda Genesys Series, Technical Manual

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Errors: SYSTEM:ERROR? may return errors including:
+302,”PV below UVL”
+306,”UVL above PV”
-222,”Data out of range”
7.5.4. Set Foldback Protection
This command enables or disables the foldback protection. When the FB protection is
enabled, if the power supply goes into constant-current (CC) mode for about a ½ second,
then the output will turn off, the front panel will show “Fb” and the Questionable Condition
register bit 3 will be set high.
This protection is normally used to prevent a hazard condition if the output load goes into
a short-circuit. For applications where the power supply is normally operating in CC mode,
such as driving electro-magnets, the FB protection cannot be used
The FB setting is seen on the supply’s front panel FOLD LED. A foldback fault is cleared by
turning the power supply output on again
Syntax:
[SOURce]:CURRent:PROTection:STATe <0|1|OFF|ON>
Parameter:
0
or
OFF
will turn the foldback protection OFF
1
or
ON
will turn the foldback protection ON
Example:
:CURR:PROT:STAT 1
(or
:CURR:PROT:STAT ON
)
Query:
:CURR:PROT:STAT?
will return
ON
in the example, otherwise
OFF
7.5.5. Read Foldback Tripped
This query reports if a foldback protection fault has occurred. If a fault has occurred, it
may be cleared by turning the power supply output on again (see the
OUTP:STAT ON
command, section 7.2.3)
Syntax:
[SOURce]:CURRent:PROTection:TRIPped?
Example:
:CURR:PROT:TRIP?
Responses:
0
when no FB fault is active
1
when supply is shut-down because of a FB fault
7.6. LAN SPECIFIC COMMANDS
7.6.1. Blinking the Identify LED
When communicating to a stack of Genesys™ power supplies, it may be difficult to know
which supply is selected for communicating. The LAN computer may send a command
to cause the selected supply’s front panel displays to blink on and off. Also, the LAN LED
on the rear panel will blink. In a multi-drop chain of supplies (see section 9), only the LAN
supply will blink
If blinking is turned on, then it may be turned off by sending another command or by
changing any front panel control
Syntax:
SYSTem:COMMunicate:LAN:IDLED <0|1|OFF|ON>
Example:
SYST:COMM:LAN:IDLED ON
Query: There is no query to read if flashing is turned on