6.1 Troubleshooting
46
If the unit malfunctions/before you have it repaired
Symptom
Cause
Solution
See page
Neither the screen nor
LEDs light up, even when
the power switch is turned
on.
Is the power cord properly connected?
Connect the power cord.
Is the power supply fuse installed?
Install the power supply fuse.
Has the power supply fuse been
tripped?
Replace the power supply fuse.
The unit isn't accepting
key input.
Is the unit in the key-lock state (indicated
by the key-lock display on the screen)?
Cancel the key-lock state.
Settings cannot be con-
figured from the GP-IB in-
terface.
Do the GP-IB address settings on the
unit and controller differ?
Set the correct GP-IB address.
Did you use the RS-232C interface?
The GP-IB interface cannot be used after the
RS-232C interface is used. Turn the unit off,
wait a short amount of time, and then turn the
unit back on.
Settings cannot be con-
figured from the RS-232C
interface.
Did you send the "
RMT
" command?
Send the "
RMT
" command. The RS-232C inter-
face cannot be used to communicate unless the
"
RMT
" command is sent first.
Do the controller's RS-232C settings dif-
fer from the unit's communications con-
ditions?
Change the controller's RS-232C communica-
tions settings.
Did you use the GP-IB interface?
The RS-232C interface cannot be used after the
GP-IB interface is used. Turn the unit off, wait a
short amount of time, and then turn the unit back
on.
Are you using a straight cable?
Use a cross cable.
No voltage is being output
from the voltage output
terminal.
Is the interlock operating?
Is the interlock indicator lit up?
The external I/O connector's interlock input sig-
nal is on. Check the reason that interlock has
been activated and rectify it.
Is the signal that turns the output chan-
nel on being input to the external I/O
connector?
Set the channel being used to on with the input
pins that turn each channel on and off.
Is the signal that turns output on being
input to the external I/O connector?
Does the voltage output indicator light
up when output is turned on?
Set the input pin that turns output on and off to
on.
No voltage is being output
from the voltage output
terminal. The monitor
voltage shown on the
screen is 0.0 V, and the
abnormal voltage alarm
result is NG.
The unit's protective circuitry may have
been triggered due to a failure.
Please contact your dealer or Hioki representa-
tive.
"TEMP" is flashing in re-
verse video on the
screen, and a voltage is
no longer being output
from the voltage output
terminal.
The overheat protection function has
been activated. Are the limitations listed
in the basic specifications being com-
plied with?
Set the operating conditions so that the limita-
tions in the basic specifications are complied
with.
While "TEMP" is displayed, all channels will be
turned off, and the ability to control the unit from
the interfaces and external I/O connector is dis-
abled. Once the internal temperature decreas-
es, the "TEMP" indicator on the screen will turn
off, and you will once more be able to control the
unit. All channels will be turned off when the unit
resumes operation, so you will need to reconfig-
ure the output channels for use.
"ERROR:011" is being
shown in reverse video
on the screen, and a volt-
age is no longer being
output from the voltage
output terminal.
The power supply A circuit's overcurrent
protection function has been activated.
Are the limitations listed in the basic
specifications being complied with?
Set the operating conditions so that the limita-
tions in the basic specifications are complied
with.
All channels will turn off, and the instrument will
not accept control instructions from either inter-
face or the external I/O connector. There is no
way to recover from this state. Turn the unit off,
wait a short amount of time, and then turn the
unit back on.
"ERROR:012" is being
shown in reverse video
on the screen, and a volt-
age is no longer being
output from the voltage
output terminal.
The power supply B circuit's overcurrent
protection function has been activated.
Are the limitations listed in the basic
specifications being complied with?
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