
Chapter 7 Troubleshooting
69
ELECTROSURGICAL UNIT PSD-30
7.2
Alarm functions
Patient plate/S-cord connection error
Figure 7.1
Irregularity description
Possible cause
Solution
The patient/ S-cord warning
indicator lights or flashes
and the alarm sounds (see
Figure 7.1).
• The wires of the P cord
are broken.
• The P cord is connected
incorrectly.
Connect the P cord
correctly as described in
Section 3.4, “Connection of
the patient plate”.
• The wires of the S-cord
are broken.
• The S-cord is connected
incorrectly.
Connect the S-cord
correctly as described in
Section 3.5, “Connection of
the S-cord (when using an
endoscope with a S-cord
connector mount)”.
The patient plate is not in
proper contact with the
patient’s skin.
Reattach the patient plate
or replace it with
designated patient plate as
described in Section 3.4,
“Connection of the patient
plate”.
The split type patient plate
is used with the endoscope
having no S-cord connector
mount.
Use a non-split type patient
plate.