External voltage

Loads such as motors and inductors (e.g. contactors, long cable lengths) can cause a regenerative voltage at the 24 V output of the switched-mode power supply module. The power supply unit is resistant to this type of overvoltage and reacts to it with a red indication of the status LED.

The maximum permitted voltage at the 24 V output is 34 V. The maximum possible absorbable energy can be calculated taking into account the installed output capacitance of 6 mF.