How to resolve error E51 on Hirschmann Measuring Instruments?
- SSteven GardnerSep 1, 2025
Error E51 indicates no valid data in the crane data file or a defective Flash-EPROM. Upload a valid crane data file or replace the central unit.

How to resolve error E51 on Hirschmann Measuring Instruments?
Error E51 indicates no valid data in the crane data file or a defective Flash-EPROM. Upload a valid crane data file or replace the central unit.
What to do if Hirschmann HC3901 Measuring Instruments display error E81?
If error E81 is displayed, the angle as to the horizontal on the boom head exceeds the main boom angle by more than 5 degrees. Check the angle sensor on the boom head and the angle sensor on the base boom.
What does error E94 on Hirschmann HC3901 mean?
Error E94 indicates a defective CAN bus or defective system data transmission. Restart the system and check the CAN bus cable.
How do I fix error EAB on Hirschmann HC3901?
Error EAB indicates a short circuit in the A2B switch or in the cable to the A2B switch. Replace the A2B switch or the cable to the A2B switch.
What causes error EDD on Hirschmann HC3901 Measuring Instruments?
Error EDD indicates that the battery check detected a low voltage of the battery. Change the battery, and then set up the RTC.
What is error EAC on Hirschmann HC3901?
Error EAC indicates a disconnected cable in the A2B switch or a disconnected cable to the A2B switch. Connect or replace the cable in the A2B switch, or connect or replace the cable to the A2B switch.
What does error E04 mean on Hirschmann HC3901?
Error E04 means a non-existing operating mode has been selected. Set the correct operating mode for the operating state in question.
| Brand | Hirschmann |
|---|---|
| Model | HC3901 |
| Category | Measuring Instruments |
| Language | English |
Technical data and installation for the HC3901 LMI controller unit.
Information on the WG Angle Sensor, including technical specs and installation.
Details on the KMD Force Sensor, its technical data, and installation.
Explanation of the main display screen, data elements, and interface controls.
Covers EN13000 warning icons, weight status bar, and indicator lights.
Guide to configuring the LMI's Operational Mode (OM) and reeving settings.
How to access and adjust system functions, CANbus, I/O, and load charts.
Explains the system's warning triggers and movement prohibition rules.
Performing essential checks before operation and regular maintenance on LMI components.
General precautions, handling, and angle sensor adjustment procedures.
Detailed guide to LMI error codes, their causes, and recommended solutions.
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