Event number 40
Event number 40 indicates a disturbance detected in the module array by means of the string current monitor of the STPx000TL-10 inverter.
More detailed information about the error is given by the 4-digit event number, see separate diagnoses 4001, 4002 and 4003.
In STPx000TL-10 devices with a firmware greater than 2.33.02R, the 4-digit event number is shown on the display; the 2-digit event number is only shown on the display of devices with an older firmware. In this case, the 4-digit event number can be read out via communication as follows:
Sunny Explorer / Sunny WebBox Bluetooth / SMA Cluster Controller after the inverter has been selected in the system tree:
Instantaneous values / Status / Current event number
Sunny WebBox (485) after the inverter has been selected in the system tree:
Instantaneous values / Op.EvtCntIstl
All work on the inverter and the cabling of the PV array must be carried out by an electrically qualified person. SMA accepts no liability for the information and solutions given in the Online Service Center. Additional information can be found in our Online Service Center’s terms and conditions of use.
