MEM86-3*192 R3R1R3 | R3R1R3 ABB MEMORY BOARD

• Remove the memory board and check the welding of all the connector’s terminals. Subsequently reinsert the memory board and check that it is correctly inserted into the dedicated slot
• Check the grid voltage on the inverter.
– Should it be absent, check for absence of grid voltage on the supply point.
– If, on the other hand, the voltage tends to rise (when the inverter is connected) there is high line or grid impedance.
• Check the grid voltage also on the supply.
– If it is high, it means that there is high grid impedance. In this case, ask the operator to adjust the grid voltage. If the operator authorises a change to the inverter’s parameters, agree the new limits with customer assistance
– If the voltage at the point of supply is much lower than that measured on the inverter, it is necessary to adjust the line (inverter-contactor).
– If the voltage and the grid frequency come back within the
– If the signal persists also following the above checks, contact customer assistance