Future Design MCT-MC 4.3, Руководство пользователя

Страница: 139 / 186

MCT-MC
4.3
Alarm Codes and Troubleshooting - 139 - FDC MCT-MC
12 Alarm Codes and Troubleshooting
This section provides explanations of standard MC alarms to help in diagnosing and resolving the alarm
conditions. Note that the information provided here covers standard alarms only, and not alarms configured by
the OEM. If you are unable to diagnose a problem through the use of this guide, contact your OEM for further
assistance.
Some of the troubleshooting procedures may require access to live circuitry. Dangerous
accidental contact with line voltage may be possible. Only qualified service personnel should
be allowed to perform these procedures.
Alarm Monitor Description Explanation/Corrective Action
“
tagname ” A to D converter failure
(error code 40) Indicates that the analog to digital converter in the loop
control indicated by “
tagname ” has failed. Return to factory for repair or
replace.
Auto tune failed for “
tagname ”.
(error code 26) Indicates that auto tune was unable to execute properly for
the loop control indicated by “
tagname ”. Verify that PB >0 and TI>0 before
starting auto tune. Try manual tuning instead of auto tuning if the process
has a very slow response.
“
tagname ” cold junction failure
(error code 30) Indicates that the cold junction compensation in the loop
control indicated by “
tagname ” has failed. Return to factory for repair or
replace.
Communications error with “
tagname ”.
Check cable.
Check communication wiring between COM2 of the MC touch screen and
the loop control indicated by
“tagname”. Verify that the loop control has the
proper communications address and communications settings.
“
tagname ” EEPROM failure
(error code 29) Indicates that the memory in the loop control indicated by
“
tagname ” has failed. Return to factory for repair or replace.
Email Error! Check cable or server
down.
Indicates that the MC was unable to send an alarm message through the
mail server. Verify that the MC is properly connected to the network and that
the email settings and addresses are valid.
FTP! Check cable or server down.
Indicates that the FTP back-up attempt of the data files failed. Verify that the
MC is properly connected to the network and that the FTP settings are valid.
If the MC is not connected to a network, disable the FTP data back-up to
prevent this alarm from occurring.
NTP Ping Failed. Check Cable.
Indicates that the MC was unable to synchronize its clock with the selected
time server. Verify that the MC is properly connected to the network and the
selected time server is accessible.
If the MC is not connected to a network, disable the NTS clock to prevent this
alarm from occurring.