[?]: Altivar 71 drive: -5V to 5V signal for PID feedback

[nguyenhonghao]

Hello all,

I have two Altivar 71, once is v1.1 and another is v3.3
I use -5V to 5V signal for PID feedback (AI1 terminal)

I already configured AI1 as bipolar voltage input. In v1.1, process PID feedback can get negative value but in v3.3 it can not.

Please help me configure drive parameter for process PID feedback can get negative value in v3.3

Thanks in advance.