Encoder 1's calculated position exceeds the displayable value range, causing adjustment failure. The manual's first action is: “If the value for the maximum possible absolute position (LU) is greater than 4294967296, then it is not possible to make an adjustment due to an overflow. For rotary encoders, the maximum possible absolute position (LU) is calculated as follows: Motor encoder with position tracking: EPOS: p29247 * p29244 Motor encoder without position tracking: • For multturn encoders: EPOS: p29247 * p29248 * 4096 / p29249 • For singleturn encoders: EPOS: p29247 * p29248 / p29249”
- Model
- Siemens SINAMICS V90, SIMOTICS S-1FL6
- Display shows
- Encoder 1: Adjustment not possible (F7599)
- Type
- Fault code
- Source
- Manual p. 297
What F7599 means
Encoder 1: Adjustment not possible p. 297
Common causes
- The maximum encoder value times the factor to convert the absolute position from increments to length units (LU) has exceeded the value range (-214743648 ... 214743647) for displaying the position actual value. p. 297
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
- If the value for the maximum possible absolute position (LU) is greater than 4294967296, then it is not possible to make an adjustment due to an overflow. For rotary encoders, the maximum possible absolute position (LU) is calculated as follows: Motor encoder with position tracking: EPOS: p29247 * p29244 Motor encoder without position tracking: • For multturn encoders: EPOS: p29247 * p29248 * 4096 / p29249 • For singleturn encoders: EPOS: p29247 * p29248 / p29249 p. 297
If F7599 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.”
This page summarises what the manufacturer’s manual says about F7599; 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.