F3135

Dynamization pulse width incorrect

Bosch Rexroth · IndraDrive MPx02

What does F3135 mean?

This non-fatal safety error indicates that the pulse width of dynamization signals, used for testing safety inputs/outputs, has been detected as incorrect on the IndraDrive MPx02. An incorrect pulse width can prevent proper fault detection or lead to nuisance trips, compromising the integrity of the safety system.

Common Causes

  • Incorrect parameterization of the dynamization pulse width (e.g., S-0-0083, S-0-0084).
  • Signal distortion due to long cables, improper shielding, or excessive electrical noise.
  • Faulty internal hardware generating or monitoring the dynamization pulses.
  • External safety device drawing too much current or presenting an unexpected load during dynamization.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check and correct the configured dynamization pulse width parameters (e.g., S-0-0083, S-0-0084) in the IndraDrive MPx02 to meet the specifications of the connected safety devices.

  2. 2

    Inspect the wiring of safety inputs/outputs for proper shielding, correct cable length, and secure connections.

  3. 3

    Verify that the connected external safety devices are compatible with the dynamization pulses generated by the IndraDrive MPx02.

  4. 4

    Measure the actual dynamization pulse width at the input/output terminals using an oscilloscope to identify discrepancies.

  5. 5

    Eliminate potential sources of electromagnetic interference that could be distorting the pulse signals.

Browse all codes in this manual (99)
Verified technical data. Last updated: March 2026

Related Faults

Source: Bosch Rexroth IndraDrive MPx02