Dear All,
Now I'm in the commissioning with a heater exchanger using saturated steam as a hot source. It will heat up the water in a tank. I use the FB58 as the PID temperature control, during the auto tuning process, the tuning always stay at the phase 1(according to the manual, this phase 1 only lasts nearly 1 minute, but now it always stays more than 20 minutes even after the PV which at the begining is 50 oC reaches the SP 65 oC), guys who have the experience for the auto tuning of this block, it will be a greatly appreciated any hint providing to me.
Please see the attached pictures for the parameter setting and the status of the tuning process.
Now I'm in the commissioning with a heater exchanger using saturated steam as a hot source. It will heat up the water in a tank. I use the FB58 as the PID temperature control, during the auto tuning process, the tuning always stay at the phase 1(according to the manual, this phase 1 only lasts nearly 1 minute, but now it always stays more than 20 minutes even after the PV which at the begining is 50 oC reaches the SP 65 oC), guys who have the experience for the auto tuning of this block, it will be a greatly appreciated any hint providing to me.
Please see the attached pictures for the parameter setting and the status of the tuning process.