Risk to life due to electric shock
There is a risk of electric shock when working on the electrical installation of the EV charging box. All work which requires the EV charging box to be opened may be carried out only by an electrician.
Also observe the documentation for the EV charging box (assembly instructions and operating manual). You can download the documents in the product catalogue.
There are two error categories for the AC HOME EV charging box: you can identify non-critical errors by the status LED, which will be illuminated red continuously. The status LED will flash red, in contrast, in case of critical errors.
In most cases, a non-critical error can be corrected with the following steps.
A critical error indicates a defect. The EV charging box must be restarted to reset a critical error.
Reading out the description of error
Prerequisite: You will need a USB serial adapter (such as DSD TECH. SH-U11) and the software Configuration Tool AC-Home EV charging box to read out the description of the error. The software can be downloaded from the Weidmüller product catalogue. Always ensure you are using the latest version of the software. The software has been tested with Microsoft Edge and Opera.
Ensure that the EV charging box is switched off and has zero potential.
To identify the right port, briefly disconnect the USB serial adapter and plug it back in. While doing so, watch which port disappears briefly in the list of available ports. If you do not see a port disappear, the driver is not installed correctly. Complete a Windows update or contact the manufacturer of the USB serial adapter to install the device drivers.
If the connection is not completed immediately, it may be that connections A and B are reversed. Change the connections on the USB serial adapter and try again:
Once the right port is set, information on the EV charging box is displayed in the configuration tool on the status page.
All active errors are designated with a red dot.
Error history
From firmware version 2.0.0, up to 96 errors are saved in the error history. You can easily track a sequence of events in the error history.
To open the error history, click Show error history below the list of errors.
A new tab, Error History, will open and display the error history.
Each column reflects one error, and the last error is shown at the far left. Scroll to the side to view the entire error history.
The number beside the individual error details is a 16 bit counter that is accepted from entry to entry. Once a counter increases, an entry is triggered in the error history and the counter in question is highlighted red.
Green markings in the General section indicate completed reboots. The operating time is saved in milliseconds in a 32-bit counter.
The undervoltage error occurs occasionally and is not unusual. It occurs when the EV charging box is switched off and the voltage in the power supply drops so slowly that this event can still be saved as an error.
The following non-critical errors may be displayed:
| Invalid CP | Communication with the vehicle is disrupted, or the vehicle is in D status (Ventilation) or F status (error). |
| Invalid PP | There is a problem with the charging cable that was connected. |
| Lock Close | There is a problem with the lock on the actuator. |
| DC fault current | The DC residual current sensor has been triggered. |
| Under voltage | The internal supply voltage is too low. |
| Over voltage | The internal supply voltage is too high. |
| No NFC | No NFC Communication with the NFC module is disrupted. |
| Flash error | Communication with the configuration memory was possible upon start, and is now disrupted. |
There is a flashing code for each critical error above firmware version 2.1.0.
| lockUnlock | 1x flash 1x pause | There seems to be a problem with the lock on the actuator. |
| lockWiring | 2x flash 1x pause | There seems to be a problem with the lock on the actuator. |
| c230isCold | 3x flash 1x pause | The contactor does not close. |
| c230isHot | 4x flash 1x pause | The contactor does not open. |
| c12isCold | 5x flash 1x pause | The contactor does not close. |
| c12isHot | 6x flash 1x pause | The contactor does not open. |
| rcdGeneralFault | 7x flash 1x pause | There seems to be a problem with the DC residual current sensor. |
| rcdSelftestFault | 8x flash 1x pause | The DC residual current sensor is not connected, or is defective. |
| flashNotDetected | 9x flash 1x pause | The configuration memory cannot be read out. |
| pwrFuse | 10x flash 1x pause | The electronic fuse of the 12 V voltage has tripped. |
| lockFuse | 11x flash 1x pause | The electronic fuse of the actuator has tripped. |
| ppConnected | 12x flash 1x pause | PP is a signal that may not be present in the Plug variant (with fixed cable). If this error occurs with a Socket variant (with socket), there is a problem with the configuration. |
| unrecoverableConfig | 14x flash 1x pause | The configuration cannot be read out. |