Kikusui PMX32-3DU, Руководство пользователя

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100
User’s Manual
PMX_MULTI
Appendix | Troubleshooting
 The output is unstable
 The output ripple is large
Check Possible cause Remedy See
Is the operation mode
switching from CV to CC
or CC to CV? The setting (output voltage or
output current) that is limiting
the output is less than the pres-
ent setting. Change the setting (output voltage or
output current) that is limiting the output
to a value greater than the present set-
ting. If the setting is at maximum, you
must use a power supply that has a
larger output voltage or current.
p.34
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
Are both “CV” and “CC”
displayed? Remote sensing is causing an
oscillation. Insert a capacitor across the load.
p.23
The circuit may be malfunction-
ing. Stop using the product immediately, and
have it repaired. −
Are the sensing cable and
load cable conditions nor-
mal? The sensing cables or load
cables have poor contact, or
they are broken. Turn the POWER switch off, and check
conditions of the cables and the wiring.
p.19
p.24
Does the load current have
peaks, or is it pulse
shaped? The peak values may be
exceeding the set constant cur-
rent. Increase the set constant current or
increase the current capacity.
p.34
Has 30 minutes passed
since the power was
turned on? The warm-up time (with the cur-
rent running) may be insuffi-
cient. Warm up the product (with the current
running) for at least 30 minutes.
p.85
Check Possible cause Remedy See
Do the ripples become
large occasionally? The input voltage is outside the
range. Apply a voltage that is within the input
voltage range.
p.85
Did you change the instal-
lation location? Something nearby may be gen-
erating a strong magnetic or
electrical field. Take measures such as moving the
product away from the field sources or
twisting the cables. —
Is external control in use? The external voltage noise is
large. Take measures against noise. —
Was the load connection
changed? The remote sensing cables are
not connected. When you are not using remote sens-
ing, disconnect the remote sensing
cables.
p.24