NF WF1946B, Instruction Manual

Page: 170 / 204

6-6
WF1946B
6.2 Suspected failure
„
In case of abnormality
If an abnormality is suspected, check as indicated in the following table. If normal operation cannot be
returned, contact the dealer.
Symptom Possible causes Correction
Power source not within
specified range Check the rear panel power supply rating.
Use the equipment at single phase AC, at the rated
voltage
±
10 %, 50 to 60 Hz (48 to 62 Hz).
Power supply fuse open Replace the power supply fuse.
(Be sure to use the correctly rated fuse.)
No power on
External noise Install the equipment in a site with favorable
conditions.
Remote mode enabled Press the LOCAL key to set the local mode.
Panel inoperative
Keys or Modify dial
defective Contact service.
Ambient temperature and
humidity outside specified
range Use the equipment under the specified
environmental conditions.
Inadequate warm up Allow the equipment to warm up for at least 30
minutes after power on.
DC offset applied Set DC offset to 0 V.
Set for user units Select standard units
Output abnormal
LOAD function being used Set for OPEN.
Address or USB ID
different from that in the
program Set the address and USB ID to match those in the
program. Cannot be set via
remote control
Address or USB ID identical
to that of another device Set the address and USB ID so that they do not
match those of other devices.
Setting have not been
initialized (PRESET) The operation manual presumes the settings have
been initialized.
Does not operate
according to
operation manual
Operated channel reversed Check if CH1 or CH2.