Troubleshooting
Self-Diagnostic Tests
The LTMT main unit carries out a series of self tests at power-up and during operation. Following steps to take in response to a error detected are described below:
| Type | Error Detected | Action |
|---|---|---|
| Major Device Internal Error Detection |
Sensor module communication error detected |
1. Check the RJ11 LTMT9RJ105 or LTMT9RJ1015 or LTMT9RJ102 is added and connected properly between LTMT main unit and Sensor module. 2. Check detected LTMT Sensor Module on TeSys Tera DTM My Device tab. 3. Replace RJ11 LTMT9RJ105 or LTMT9RJ1015 or LTMT9RJ102 and check. 4. Check whether any loose connection of the LTMT9RJ105/LTMT9RJ1015 cable. 5. Replace sensor module and check. 6. Replace LTMT main unit. |
|
LTMT expansion module communication error detected |
1. Check device configuration setting for LTMT expansion module. Check detected LTMT expansion module on DTM My Device tab. 2. Check the RJ45 LTMT9RJ401 is connected properly between LTMT main unit and LTMT expansion module. 3. Replace RJ45 LTMT9RJ401 and check. 4. Replace LTMT expansion module and check. 5. Replace LTMT main unit. |
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|
Configuration error detected |
1. Check device configuration setting for LTMT expansion module and CT sensor module. 2. Check detectedLTMT expansion module on DTM my device tab. 3. Make correct configuration and check. |
|
|
Internal temperature is high |
Replace LTMT main unit. |
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|
Minor Device Internal Error Detection |
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Contact Schneider Electric's support team. |