TDK-Lambda Genesys Series, Technical Manual

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7.7.3. Save All Settings
This saves the present power supply settings. This is used along with the
*RCL 0
command (in section 7.7.4) which allows you to bring the power supply back to some setup
configuration with only one command
When the supply is powered-down, the
*SAV 0
settings are over-written by the power-
down settings
Syntax:
*SAV 0
7.7.4. Recall All Settings
This recalls the last saved power supply settings. These may be from the last
*SAV 0
command (in section 7.7.3) or, if no
*SAV 0
has been sent, the last settings restored at
power-up
The recall command will change the following settings with only one command, where
<last>
are the last settings from
*SAV 0
or from power-up
:VOLT <last> :CURR <last>
OUTP:STAT <last> SYST:SET <last>
OUTP:PON <last> :CURR:PROT:STAT <last>
:VOLT:LIM:LOW <last> :VOLT:PROT:LEV <last>
The status and event registers are not affected by the recall command
Syntax:
*RCL 0
7.7.5. Self-Test
This is query to launch a simple self-test. It verifies the basic connections between the LAN
microcontroller and the control board microcontroller. The self-test result (pass or fail) is
read from the message queue
If the self-test failed and it returns
1
, contact Lambda Customer Service for further
instructions
Syntax:
*TST?
Responses:
0
when the self-test passed
1
when the self-test failed
7.8. ERROR AND STATUS COMMANDS
Any program that operates a remote power supply should routinely verify that the supply is
accepting commands as expected. There is always a chance that the program sent a command
incorrectly, the supply is set so a command cannot be carried out, or a fault condition has shut
down the supply. A reliable program will check for these errors
There are three methods for checking the Genesys™ power supply status:
•
IEEE-488.2 Registers: these are a few simple registers in which a bit is set because of
a command error or instrument fault condition. Little information about the type of fault
is returned to the operator. The registers are read, set and cleared using the Common
Commands (these start with an asterisk)
•
SCPI Registers: these are an extension of the IEEE-488.2 register set. SCPI adds registers
which describe exactly what fault conditions occur in the power supply. It also adds status
registers that report operating modes during normal operation
•
SYSTEM:ERROR Queue: This is a message-based error and status reporting system. When
registers are used, the operator must use a look-up table to find the meaning of each register
bit position. The SYSTEM:ERROR is a message where the status and error conditions are
expressed in readable text. This is the preferred method to verify commands are accepted