I believe I found and answer for this, thanks for me!
Module properties page I can set the fault mode 'Go to low clamp'. And in the Limit Configuration page I can set the Low and High Clamp. So, in my case, when I am using -10V to +10V, there is set the low Clamp to -10V. This is bad in my system, when I am controlling the proportional valve. -10V is maximum to the other direction.
I need to use 'Use fault value' => '0'.