Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 639

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■Setting example 4: Heating-cooling PID control

When "Control mode" is set to "Heating-cooling PID control mode", without performing auto tuning, PID control is performed

by using the control parameters set by the user.

Parameter settings

FX5-4AD-TC-ADP

• Operation example

Measured value (PV)

Target value

(SV) = 50.0ºC

Output value for heating (MVh)

Control output

Output value for heating (MVh) / 100

× Control output cycle = 3.0s

Control output cycle

(50 × 100ms = 5s)

Output value for cooling (MVc)

Control output

(cooling control)

Control output cycle

(50 × 100ms = 5s)

Output value for heating (MVh)

Output value for heating (MVh) / 100

× Control output cycle = 1.5s

Control output cycle

(50 × 100ms = 5s)

Output value for cooling (MVc)

Control output cycle

(50 × 100ms = 5s)

X0: PID control execution command

Y0: Error output

Y1: Control output

Y2: Control output (cooling control)

FX5U-32MT/ES

Temperature tank

Temperature sensor

(thermocouple)

Cooling piping

Output value for heating (MVh)

Control output cycle

(50 × 100ms = 5s)

Output value for cooling (MVc)

Output value for cooling (MVc) / 100

× Control output cycle = 2.0s

Control output cycle

(50 × 100ms = 5s)

35 CPU MODULE BUILT-IN ANALOG FUNCTION

35.6 Function (PID Control Via Parameter)

Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 639

Troubleshooting

Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 639

Troubleshooting

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