American Magnetics 05200PS-430-601 Integrated Power Supply System - Manual (Page 164)

146 Rev. 5
Service
Troubleshooting Hints
3. Check your host communications software and make sure it is
recognizing the return termination characters from the Model 430
Programmer. The return termination characters are .
4. If the Model 430 Programmer is responding repeatedly with errors,
try a device clear command (DCL) or powering the Model 430
Programmer off and then back on. Be sure you are sending valid
commands.
5.2.18 Magnet current drifts unacceptably while PSwitch cooling
1. Set the PSwitch Cooling Gain to 25% and cool the switch. Observe
the current on the front of the Model 430 Programmer while the
persistent switch is cooling
2. If the switch will not lock (cool to superconducting), resulting in a
PSW lock error, reduce the PSwitch Cooling Gain by several
percent and attempt cooling the switch again.
3. If the switch cools but the magnet current has excessive drift
during cooling, increase the PSWitch Cooling Gain value by several
percent.
5.2.19 Model 430 appears to lock up when connecting to network
Note
If the IP Address Assignment value is changed, the Model 430
Programmer power must be cycled off for at least 15 seconds and
then back on to complete the change.
On power-up, when connecting via Ethernet (Internet Protocol), the
Model 430 will display the firmware version screen until an IP
address has been obtained. On busy or slow networks, IP address
assignment may take several seconds (even as much as a minute or
so on very slow networks). The additional time required may give
the temporary false appearance of Model 430 "lockup".
5.3 Additional Technical Support
If the cause of the problem cannot be located, contact an AMI Technical
Support Representative at (865) 482-1056 for assistance. The AMI
technical support group may also be reached by internet e-mail at
[email protected] . Additional technical information,
latest software releases, etc. are available at the AMI web site at:
http://www.americanmagnetics.com