TMS7 ME00070B Error C: RS485 communication fault

TMS7 soft starter · taken from the manufacturer’s manual, pages cited

Fault codeC

RS485 communication fault indicates inactive link for longer than set timeout. The manual's first action is: “1. Restore the RS485 link.”

Model
TMS7 ME00070B
Display shows
RS485 communication fault (C)
Type
Fault code
Source
Manual p. 29

What C means

RS485 communication fault p. 29

Common causes

  • The RS485 link connected to the TMS7 has been inactive for a period of time greater than set in Function 60. RS485 - Timeout Protection. p. 29

Safety warnings — read before you start

  • CAUTIONCAUTION GROUNDING AND BRANCH CIRCUIT PROTECTION. It is the responsibility of the user or person installing the TMS7 to provide proper grounding and branch circuit protection according to the National Electric Code (NEC ®) and local codes. p. 3

What to do

  1. 1. Restore the RS485 link. p. 29

If C is still not resolved

  • Restore the RS485 link. p. 29
    “1. Restore the RS485 link.”
Open the manual at page 29 All ME00070B error codes Manual details & download

This page summarises what the manufacturer’s manual says about C; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with TMS7. Found a mistake? Report an error.