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Industrial Automation & Network Hardware
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Understanding Indramat DDS Fault Codes

May 14, 2025

Indramat DDS drives are widely recognized for their reliability and robust performance in industrial automation. A critical component of these drives is the H1 status indicator, which provides real-time feedback on the operating state of the system. When something goes wrong, this status display shows a fault code that helps you identify, diagnose, and correct issues quickly, ensuring minimal downtime.

Let’s take a closer look at how DDS drive fault codes work and what some of the most common ones mean.

DDS vs. ECODRIVE Fault Code Formats

While Indramat drives share a common goal of system protection and error reporting, fault code representation differs between models.

  • DDS Drives: Use 1- or 2-digit numeric fault codes ( 28, 60).

  • ECODRIVE Systems: Use 4-character alphanumeric codes starting with a letter ( F878, E253), which offer additional granularity by categorizing errors by type ( fatal, warning, informational).

Even though DDS codes are simpler, they’re still effective for troubleshooting. Each DDS code can represent multiple potential causes, so consulting the drive’s manual remains crucial.

Common Indramat DDS Fault Codes

Here are several frequently encountered DDS fault codes, along with what they generally indicate:

Code Description
28 Excess deviation – Difference between command and actual position/velocity is too large.
43 Invalid feedback data – Encoder signal cannot be processed correctly.
44 Travel limit switch detected – Mechanical end limit reached.
45 External encoder failure – Quadrant error in encoder signals.
51 Motor overtemperature warning – Temperature exceeds safe threshold.
60 Bridge fuse blown – Indicates potential power supply or output stage fault.
61 Short-to-ground or overcurrent – Severe current spike or ground fault.
74 Pattern data transmission time invalid – Timing issue in position or speed pattern data.

These codes appear on the H1 status display, which is a key diagnostic tool for the DDS series.

Location of H1 and H2 Status Indicators

  • H1 Status Indicator: Found at the top right of the drive controller’s front panel, the H1 indicator is the primary display for drive status, fault codes, and warnings.

  • H2 Status Indicator: Present only on drives equipped with a SERCOS interface module. This secondary display provides additional interface-specific diagnostics.

How to Clear DDS Fault Codes

Once the fault’s cause has been addressed, it’s important to clear the fault code before the drive can resume normal operation. Depending on the interface, there are three common methods:

  1. SERCOS Interface: Use the drive controller to clear the fault via the control interface.

  2. Analog Interface Module: Press the S1 reset button on the front panel.

  3. Single-Axis Control Card: Press the CL and S keys simultaneously to clear the code.

FAQs

 Can DDS drives operate after a fault is displayed?

No. Most DDS fault codes halt drive operation to protect the system. The fault must be resolved and cleared before the system resumes functionality.

 Are all DDS error codes fixable in-house?

Some fault codes, such as loose cable connections or simple feedback signal issues, can be resolved in-house. However, faults like blown power stages, encoder failures, or bridge fuse faults should be handled by professionals to avoid damage.

 

For more information, contact PLG Automation:
Email: sales@plgautomation.com
Phone: 800-906-9271