Panasonic FP Series User Manual

Process control instructions
939
Part III FP Instructions
An integral part produces an output quantity that corresponds to the time integral and input quantity (area of the
input quantity). The integral time thus evaluates the output quantity MVi.
The integral part can be a quantity scale of a tank that is filled by a volume flow, for example. Because of the
slow reaction time of the integral part, it has a larger maximum overshot than the P component, but no constant
standard tolerance.
+
-
Set value (SP)
Standard
tolerance e
Measurement
signal (PV)
Integral
operation
Output (MVi)
0
t
e
0
t
MVi
MVi=1/Ti edt
3. Derivative part (D part)
The derivative part produces an output quantity that corresponds to the time derivation of the input quantity. The
derivative time corresponds to the weighting of the derived input quantity.
A derivative component can be an RC-bleeder (capacitor hooked up in series and resistance in parallel), for
example.
+
-
Set value (SP)
Measurement
signal (PV)
Standard
tolerance e
Derivative
operation
Output (MVd)
0
t
e
0
t
MVd
MVd=Td*de/td
4. PID controller
Example:
Input quantity e and the output quantity MVi produced.
Example:
Input quantity e and the output quantity MVd produced.

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model