Self-Diagnosis/Protection Function; External Control Function - NF DP420LS Instruction Manual

11. Specifications

11.25 Self-diagnosis/Protection Function

At power-on
ROM check
RAM check
Basic setting Memory check
System Setting Memory check
Waveform Memory check
Sequence Memory check
Simulation Memory check
Adjustment value memory check
Version check
System configuration check
While energizing
Abnormal output
Power unit error
Internal control error

11.26 External Control Function

The following functions can be selected.
Item
Disable Disable the control input of the CONTROL I/O. The status output signal is output.
（See 11.26.1）
Enable
Enable the CONTROL I/O.（See 11.26.1）
DevCtrl
You can control DIP or RIN.（See 11.26.2）
256
Checks the internal ROM.
Checks the internal RAM.
Checks the Basic Setting Memory.
Checks the System Setting Memory.
Checks the Waveform Memory.
Checks the Sequence Memory.
Checks the Simulation Memory.
Checks the adjustment data memory.
Checks the version of the internal software.
Checks the polyphase system.
Turns off the panel display and output when an output overvoltage
or overcurrent is detected.
Turns off the panel display and output when a power unit error is
detected.
Turns off the panel display and output when an internal
communication or other error is detected. Also stops all the
operations excluding power-off.
Description
PROGRAMMABLE AC POWER SOURCE
Description
Description