Kikusui PWX750ML, User Manual

Page: 35 / 110

PWX
35
Protection Functions and Alarms
Basic Functions
2
Incorrect sensing connection protection (SENSE)
This function is activated when the remote sensing cables are connected with the incorrect
polarity (positive or negative), and the remote sensing function is then used.
Low AC input protection (AC-FAIL)
This function is activated when a low AC input is detected.
Shutdown (SD)
p.65
Shutdown (SD) is not activated as a result of the PWX750ML detecting an error. It is a func-
tion that is used to turn the output off through the application of a signal to the rear-panel J1
connector when an abnormal condition occurs.
If SD is activated, turn the POWER switch off and on.
Power limit (POWER LIMIT)
p.26, p.30
This function changes the output voltage or output current according to the changes in the
load resistance. This function limits the output power to a value that is approximately 105 %
of the rated output power. This function does not turn the output off.
When the output limit function has been activated, the ALARM LED blinks. An alarm signal is
not transmitted.
Power limit value (fixed): 787.5 W
Communication monitoring (WATCHDOG)
p.43
The watchdog function monitors the SCPI command communication status.
Communication is assumed to have stopped if there is no communication within the time
period specified by the communication monitoring timer setting (CF17).
This function operates regardless of whether the product is in remote or local (panel control)
mode. When using local mode (panel control), set communication monitoring to off in the
timer settings. When using remote mode, you can set the timer using a command
(OUTP:PROT:WDOG).
You cannot stop communication monitoring with the *RST, *RCL, or *CLS command.
In the alarm state, turn off communication monitoring before clearing the alarm.
Lit
Alarm indication when incorrect
sensing connection protection has
been activated
Lit
Alarm indication when low AC
input protection (AC-FAIL) has
been activated
See
Lit
Alarm indication when the
shutdown (SD) function has
been activated
See
See
Lit
Alarm indication when the commu-
nication monitoring (WATCHDOG)
has been activated