Siemens MICROMASTER 420 Error F0070: Communications board setpoint error

Siemens MICROMASTER 420 inverter · taken from the manufacturer’s manual, pages cited

Fault codeF0070

The communications board did not receive a setpoint during the telegram off time. The manual's first action is: “1. Check connections to the communications board 2. Check the master”

Model
Siemens MICROMASTER 420
Display shows
Communications board setpoint error (F0070)
Type
Fault code
Source
Manual p. 71

What F0070 means

Communications board setpoint error p. 71

Common causes

  • No setpoint received from communications board during telegram off time p. 71

What to do

  1. 1. Check connections to the communications board 2. Check the master p. 71

Before you service the product, read the safety instructions in the manual p. 6.

If F0070 is still not resolved

  • Contact your service dealer for assistance. p. 71
    “1. Check connections to the communications board 2. Check the master”
Open the manual at page 71 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F0070; 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 Siemens. Found a mistake? Report an error.