FP-X series
Multi-point PID control
High-accuracy PID control is possible by adopting a sophisticated algorithm and floating-point operations.
Higher accuracy is obtained by ultra high-speed computations in a 32µs/loop. For example, a 16-loop control only adds a scan time of 0.5ms by ensuring minimum impact on the tact time.
The simultaneous multi-point auto-tuning simplifies complex parameter setting.
The high-speed control PI-D*¹ mode and overshoot suppression I-PD*² mode are available for selection according to the intended application.
By combining with a sequence control, the parameters (Kp, Ti, Td, etc.) can be changed during a PID control execution, thereby enabling optimum temperature control in each stage including start up, mid-range and convergence. The ability to change the tar- get value easily enables multi-step temperature control, which was difficult with only temperature controllers. In addition, the multi-point temperature control enables centralized control of multiple temperature controllers with a single FP-X for unified data management.
*1 Derivative type
*2 Proportional-derivative type
Modbus-RTU
Multiple temperature controllers
Easy unification of data management
The number can even be increased up to 28 channels by using the thermocouple input cassette and FP0 thermocouple unit.
Partial optimum control by changing | Multi-step control by changing |
parameters | the target value |
PI-D mode |
Target |
value |
I-PD mode |
Time |
High-speed PID |
control |
Target |
value |
Overshoot suppression |
Rapid acceleration |
Smooth startup |
Time |
01/2008 |
