Siemens SINAMICS V90, SIMOTICS S-1FL6 Error F1912: PROFIdrive: Clock cycle synchronous operation sign-of-life failure

Industrial motor drive · taken from the manufacturer’s manual, pages cited

Fault codeF1912

Exceeded the maximum allowable errors in controller sign-of-life during cyclic operation on PROFIdrive. The manual's first action is: “• Physically check the bus (cables, connectors, terminating resistor, shielding, etc.).”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
F1912
Type
Fault code
Source
Manual p. 289

What F1912 means

PROFIdrive: Clock cycle synchronous operation sign-of-life failure p. 289

Common causes

  • The maximum permissible number of errors in the controller sign-of-life (clock synchronous operation) has been exceeded in cyclic operation. p. 289

Safety warnings — read before you start

  • DANGERGeneral Safety Instructions. Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. p. 2
  • WARNINGRisk of Electric Shock and Fire. Risk of electric shock and fire from supply networks with an excessively low impedance Excessively high short-circuit currents can lead to the protective devices not being able to interrupt these short-circuit currents and being destroyed, and thus causing electric shock or a fire. p. 12
  • WARNINGElectric Shock if No Ground Connection. Electric shock if there is no ground connection For missing or incorrectly implemented protective conductor connection for devices with protection class I, high voltages can be present at open, exposed parts, which when touched, can result in death or severe injury. p. 12
  • WARNINGElectric Shock Due to Unsuitable Power Supply. Electric shock due to connection to an unsuitable power supply When equipment is connected to an unsuitable power supply, exposed components may carry a hazardous voltage that might result in serious injury or death. p. 12

What to do

  1. • Physically check the bus (cables, connectors, terminating resistor, shielding, etc.). p. 289
  2. • Correct the interconnection of the controller sign-of-life. p. 289
  3. • Check whether the controller correctly sends the sign-of-life (e.g. create a trace with STW2.12...STW2.15 and trigger signal ZSW1.3). p. 289
  4. • Check the permissible telegram failure rate (p0925). p. 289
  5. • Check the bus and controller for utilization level (e.g. bus cycle time was set too short). p. 289

If F1912 is still not resolved

  • Contact service / dealer for assistance p. 2
    “Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions.”
  • Contact service / dealer for assistance p. 13
    “NOTICE Property damage due to loose power connections Insufficient tightening torques or vibration can result in loose power connections. This can result in damage due to fire, device defects or malfunctions.”
Open the manual at page 289 All SINAMICS V90, SIMOTICS S-1FL6 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F1912; 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.