F4034

Emergency-Stop

Bosch Rexroth · IndraDrive MPx02

What does F4034 mean?

This fault indicates that an emergency stop condition has been detected and activated on the IndraDrive MPx02, leading to an immediate and controlled shutdown of the drive. The E-stop signal is typically a hardwired input that overrides normal operation for safety.

Common Causes

  • Activation of an external emergency stop push button or safety device.
  • Break in the emergency stop circuit wiring, leading to loss of the safety signal.
  • Faulty emergency stop contactor or relay in the safety circuit.
  • Incorrect wiring or configuration of the emergency stop input terminals on the IndraDrive MPx02.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect all emergency stop buttons and safety interlocks in the machine or system to ensure none are pressed or active.

  2. 2

    Verify the integrity of the emergency stop safety circuit, checking for loose connections, damaged cables, or open contacts.

  3. 3

    Measure the voltage at the emergency stop input terminals of the IndraDrive MPx02 to confirm the expected safe state (e.g., 24VDC present for active state).

  4. 4

    Bypass the external E-stop circuit temporarily (if safe to do so for troubleshooting) to determine if the fault originates from the external wiring or an internal drive issue.

  5. 5

    Check safety parameters related to the E-stop function in the IndraDrive MPx02 for correct configuration.

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Verified technical data. Last updated: March 2026

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Source: Bosch Rexroth IndraDrive MPx02