Q&A Forum

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from picture of semikron skch 28/12 Somehow this forum brokes link after ?

This text is quoted from "Make sure to select an SKCH that can take your max current and voltage. Also make sure that the bridge has a reverse diode....

Thyristor pins 7 and 9 are thyristor gate pins that are connected to trigger module g1 and g2 pins.

Have you measured gate voltages from pins 7 and 9 it should be 0v when brake is set zero, second you told that you are using skbh type semicron its n...