Siemens F079 fault code meaning

Series: 6RA70

SCB1: Telegram fault telegram fault

DC drive

Meaning: Telegram fault (valid in all operating states). Check the SCB1 function (activate LED) and the connection from SCI to the slave drive (fiber-optic cable). A CB/TB board encountered a fault during initialization. The CB/TB board is damaged. The CB/TB board is inserted incorrectly. The execution time of the CB/TB board is too long (e.g. due to a highly complex TB configuration). r047 Index 002 ~ 016: 1 The "kernel tick counter" of CB/TB did not start counting within 20 seconds. Code of the i015 board: 1 TB or board 1 CB 2 Board 2 CB.

Possible causes

Source: 6ra70_c P437