NF DP060LM, Инструкция по эксплуатации, Страница: 257 / 307

9.2 When a Failure is Suspected
DP060LM/DP120LM/DP180LM
239
Table 9-3 Actions When a Failure is Suspected (Continued)
Category Symptom Possible Cause Necessary Actions
Problem of
Autocal
function The Autocal
function cannot
be turned on. The output mode is
incorrect. The Autocal function can be set to
on in the AC-INT, AC-VCA,
AC-SYNC, DC-INT, and
DC-VCA modes. However, for
the AC mode, it can be set to on
only when the waveform is a sine
wave. It is turned off when the
Sequence or Simulation function
is selected. However it can be set
to ON in the AC-INT, ACDC-INT
and DC-INT modes and when the
waveform is a sine wave or DC in
case the stand-by state of
Sequence mode (step0). In the
ACDC mode it cannot be set to
ON unless either AC voltage or
DC voltage setting is 0 V.

4.13
The waveform setting is
incorrect.
The mode is not the
Continuous mode.
The mode is not the
stand-by state of
Sequence mode.
In the stand-by state of
Sequence mode (step0)
and ACDC mode either
AC voltage or DC
voltage setting is not
0 V.
The AGC function is on. When the AGC function is on, the
Autocal function cannot be used.
Turn the AGC function off.

4.12
The remote sensing
function is set to FB. Set the remote sensing function to
ON or OFF.

4.11
Problem of
remote
control Refer to "Instruction Manual (Remote Control)" in the attached CD-ROM.
Problem of
CONTROL
I/O The product
cannot be
controlled by the
CONTROL I/O. The external control is
disabled. Enable the external control.

4.18
The Remote state is set
by the communication
interface. The external control is disabled in
the Remote state.
Problem of
USB
memory Files in the USB
memory do not
appear on the
screen. USB eject operation was
performed. Perform the USB eject operation
(

4.9
) again just in case, and
remove the USB memory.
Reconnect the USB memory and
make sure the file names are
displayed.
One folder contains over
500 files. Reduce the number of files in a
folder to 500 or less.
The format is illegal. Use a FAT32-formatted USB
memory.
Problem at
driving an
inductive
load (e.g.,
transformer) The current
waveform is
abnormal (e.g.,
asymmetrical or
excessive) when
the transformer
is connected as
the load and the
AC voltage is
output. The output offset
voltage (DC component)
caused the load
transformer core to
reach the magnetic
saturation. In the AC mode, the control
function works to eliminate the
offset voltage (DC component).
When the product is used in the
ACDC mode, switch it to the AC
mode.

3.4.2
If it does not bring much
improvement, adjust the DC
offset.

4.14