140 PWR-01
C
Troubleshooting
This section introduces troubleshooting measures. Typical symptoms are listed. Check
whether any of the items listed below apply to your case. In some cases, the problem can be
solved quite easily.
If none of the items apply to your case, we recommend that you initialize the PWR-01 to its
factory default settings (p.136). If the remedy does not correct the problem, contact your
Kikusui agent or distributor..
The power does not turn on
Unable to perform panel operations
No output is generated
Symptom Items to check Remedy
The PWR-01 does not
operate when the POWER
switch is turned on.
Is the power cord broken? Exchange the power cord with a new one. p.14
Is the power cord connected correctly? Connect the power cord correctly. p.14
Symptom Items to check Remedy
Unable to carry out panel
operations.
Is the LOCK LED lit? Release the key lock. p.71
Is the REMOTE LED lit? To control the PWR-01 from the panel, press
the LOCAL key to switch to local mode.
p.73
Is the PWR-01 being controlled via the
RS232C, USB, or LAN interface?
The PWR-01 does not
switch to local mode even
when I press the LOCAL
key.
Was a local lockout (llo) command sent
through the communication interface?
Send the “SYST:LOC” communication com-
mand to clear the local lockout (llo) status.
—
Symptom Items to check Remedy
No output is generated
even when the OUTPUT
key is turned on.
Is the output voltage set to 0 V and the
output current set to 0 A?
Turn the knobs to set the output voltage and
output current to the required values.
p.36
Are you using an external con-
tact to turn output on and off?
Yes Use the external contact to turn output on. p.94
No Set the external control for turning output on
and off to "off" (CF14: OFF).
p.60
The output turns off imme-
diately even when it is set
to on.
Is the overvoltage protection (OVP)
function activated?
Set the OVP value higher than the voltage set-
ting.
p.62
Is the overheat protection (OHP)
function activated?
The internal temperature is abnormally high.
Check the operating conditions. After you have
removed the cause of the abnormal tempera-
ture, turn the power switch on.
p.50
The air inlet (louver) may be clogged, or the fan
may be broken. Check these items.
—
Is a shutdown (SD) signal being
applied?
Set pin 16 of the J1 connector to HIGH (4.5 V
to 5 V) or open.
p.96
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