APPENDIX
143
A
PPENDIX
Trouble Shooting
Overview
This section shows some possible problems that
may arise and the solutions to some of these
problems.
Most problems may be solved by rechecking
connections, settings or some other simple
solution. Contact your nearest distributor if
problems are not eliminated or improved using the
trouble shooting guide. Never open the case to
check the inside.
Problem
Possible Cause
Check and Counter
Measures
Power is not turned
on, even after
pressing the POWER
switch.
・
AC power cable is broken or
has poor contact.
・
Check connection or replace
the cable.
・
Input fuse has blown.
・
Input voltage is out of the
allowable range.
“----“ is displayed
after starting
operation.
The unit is specified as a slave
unit.
Specify the unit as the master
unit. See page 71, “Master/slave
function”.
“OHP” is displayed
after starting
operation.
The OHP function works.
Check the ambient temperature,
air intake and exhaust ports and
dust filter.
Display disappears in
short time after
starting operation.
The fan is stopping.
Check the fan.
No output is given
even when the
OUTPUT key is
pressed.
・
The set voltage is “0V”.
・
See page 43, “How to set
voltage” . See page 79,
“Constant-voltage control with
external voltage or resistance”.
・
The set current is “0A”. (In the
CC status)
・
See page 44, “How to set
current”. See page 81, “Constant-
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