Kikusui PAN 110-1.5A, Operation Manual

Page: 130 / 160

6-14 PAN-A
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Symptom 6: Large output ripple
■
Symptom 7: Display value does not indicate output value
Check item Cause and remedy
Check that the input volt-
age is not below the cor-
rect range.
• Supply a voltage within the input voltage
range.
Check that the output ter-
minals and chassis ground
terminal are not
fl oated.
• Being subjected to induction of input power
frequency (50/60 Hz). If possible, connect
the output terminals to the ground using a
capacitor of 0.1
μ F or more.
Check that there is no
intense magnetic or elec-
tric
fi eld generating source
nearby.
• Being subjected to electromagnetic induc-
tion. Take measures such as locating the
unit away from such generating sources and
using twisted cables.
Check that external volt-
age is not noisy in control-
ling output with external
voltage.
• Take measures against noise by referring to
Sections "4.3.2 Controlling output voltage
with external voltage" or "4.3.4 Controlling
output current with external voltage".
Check that the SENS
switch is not on.
• The SENS switch should be off when the
remote sensing function is not used.
Check item Cause and remedy
Check that the SENS
switch is not on.
• The SENS switch should be off when the
remote sensing function is not used.
Check that sensing wires
or load cables are broken
wires or have poor con-
tact when the remote sens-
ing function is used.
• Check that all cables and wires are con-
nected correctly after turning off the
POWER switch
Check that the load cur-
rent has peaks or is pulse-
shaped.
• See 'Load' in "2.4 Load".
Check that the variable
resister '1' on the control
panel was moved.
• Internal reference voltage has been
changed. Because re-adjustment is neces-
sary, contact your Kikusui agent/distributor.