Kikusui PMX32-3DU, Руководство пользователя

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PMX_MULTI
User’s Manual
101
Appendix | Troubleshooting
 “ALARM” is displayed when the output is turned on.
 Unable to perform panel operations
Check Possible cause Remedy See
Is the overvoltage protec-
tion (OVP) function acti-
vated? The OVP setting is lower than
the voltage setting. Set the OVP value higher than the volt-
age setting.
p.38
Is the overcurrent protec-
tion (OCP) function acti-
vated? The OCP setting is lower than
the current setting. Set the OCP value higher than the cur-
rent setting.
p.39
Is the remote sensing
function in use? The remote sensing function is
turned on. When you are not using the remote
sensing function, turn off the SENSE
switch.
p.23
The voltage drop in the load
cables is not within the compen-
sation voltage range. Set up the environment so that the volt-
age drop in each load cable is within the
compensation voltage range (0.6 V for a
single line).
p.16
The polarities of the remote
sensing cables are connected in
reverse, or the ends of the
cables are shorted. Check the sensing cable connection.
p.19
Is external control in use? The control cable is discon-
nected. Connect the cable correctly.
p.61
The external voltage is exces-
sive. Apply the correct voltage.
Is the overheat protection
(OHP) function activated? The internal temperature is
abnormally high. Check the operating conditions. After
you have resolved the cause of the
abnormal temperature, turn the output
on.
p.41
The inlet holes are clogged, or
the fan is broken. Clean the inlet holes. Check that the fan
is not broken. −
Did you change the load? A large external voltage, such
as that of a battery load, is
applied, and the overvoltage
protection (OVP) is activated, or
the product is overloaded. Check the load. −
The actual output voltage higher
than the set voltage that is dis-
played on the panel, and the
product is overloaded. −
A special load is connected, and
the product is overloaded. −
Check Possible cause Remedy See
Is “LOCK” shown in the
display area? The keys are locked. Release the key lock.
p.54
Is “REMOTE” shown in the
display area? The product is in remote control
mode. To control the product from the panel,
press the LOCAL key to switch to local
mode.
p.59
Is the product being con-
trolled via the RS232C,
USB, or LAN interface?
Does the product fail to
change to local mode even
when the LOCAL key is
pressed? Remote with local lockout
(RWL) has been set with a com-
munication command. Send a SYST:COMM:RLST command
to clear remote with local lockout
(RWL). —