Integrated Switching Power Supply
PTN Electronics Limited 16 www.PTN-Electronics.com
7. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
No output voltage
Power supply protect
function will start when over
loaded.
Please reduce loads.
After selecting output
voltage, the output channel
will switch off automatically.
Switch on the output channel
via front panel button.
Fail or loose connection
Make sure the connection is
good.
AC1
or
AC2
indicator
doesn’t work or no
respond to any operation
Fail connection of power
cord.
Make sure the power cord
connection is good.
Cannot control the
device by control device
(e.g. a PC) through
RS232 port
Wrong RS232
communication parameters
Type in correct RS232
communication parameters.
Fail or loose connection
Make sure the connection is
good.
Broken RS232 port
Send it to authorized dealer
for checking.
Cannot control the
device by front panel
buttons while can control
it through RS232 port
The front panel buttons are
broken
Send it to authorized dealer
for repairing.
Cannot control the
device via GUI
The IP address of control
PC and TCP/IP port are not
on the same network
segment
Modify control PC’s network
segment to the same with the
TCP/IP port.
The port No. are wrong.
The correct port No. is 4001.
Fail or loose connection
Make sure the connection is
good.
Broken TCP/IP port
Send it to authorized dealer
for checking.
Note:
If your problem still remaining after following the above troubleshooting steps,
please contact your local dealer or distributor for further assistance.
