Cause : Option module 1 hardware fault comes when the SL.HF trip is generated by the drive. The possible causes of the trip can be identified by the sub-trip number.

Sub-trip & Reason
1 The module category cannot be identified
2 All the required customized menu table information has not been supplied or the tables supplied are corrupt
3 There is insufficient memory available to allocate the comms buffers for this module
4 The module has not indicated that it is running correctly during drive power-up
5 Module has been removed after power-up or it has stopped working
6 The module has not indicated that it has stopped accessing drive parameters during a drive mode change
7 The module has failed to acknowledge that a request has been made to reset the drive processor
8 The drive failed to read correctly the menu table from the module during drive power-up.
9 The drive failed to upload menu tables from the module and timed-out (5s).
10 Menu table CRC invalid.

• Ensure the option module is installed correctly
• Replace the option module
• Replace the drive