271
the Temperature Control Unit is adjusted. If the hunting is not within the permissi-
ble range determined by the user, use advanced PID control.
SP
PV
MV
100%
0%
Temperature
Hysteresis
Time
3-5-4 Advanced PID Control
If advanced PID control (i.e., SW1-1 is turned ON) is selected, the Temperature
Control Unit will operate with the P value fixed to 40.0, the I value fixed to 240,
and the D value fixed to 40.
The user’s required control may not be performed with the default PID parame-
ters. In this case, refer to 2-6 AT (Expansion Mode) and 3-6-1 Manual Settings
(Expansion Mode) to set the most suitable PID parameters.
Even if the most suitable PID parameters are set, hunting may occur if the con-
trol period is long. In this case, set SW1-6 according to the characteristics of the
controlled object. If SW1-6 is turned OFF, the control period will be 20 s and if
SW1-6 is turned ON, the control period will be 2 s.
When the control period is set to 2 s (i.e., SW1-6 is turned ON), it can be set to 1
through 99 s freely. Refer to 3-6-1 Manual Settings (Expansion Mode) for details.
Application Examples
Section 3-5
Summary of Contents for CQM1H - 08-2005
Page 1: ...Cat No W238 E1 8 Dedicated I O Units CQM1H CQM1 series OPERATION MANUAL SYSMAC ...
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Page 3: ...CQM1H CQM1Series Dedicated I O Units Operation Manual Revised August 2000 ...
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Page 21: ...1 PART I B7A Interface Unit CQM1 B7A02 CQM1 B7A03 CQM1 B7A12 CQM1 B7A13 CQM1 B7A21 ...
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Page 45: ...25 PART II G730 Interface Unit CQM1 G7M21 CQM1 G7N01 CQM1 G7N11 ...
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Page 74: ...Appendix A Specifications 54 Dimensions Common for Master and Expansion Master Unit mm ...
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Page 79: ...59 PART III I O Link Unit CQM1 LK501 ...
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Page 93: ...73 PART IV Analog Input Unit and Analog Power Supply Units CQM1 AD041 CQM1 IPS01 CQM1 IPS02 ...
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Page 121: ...101 PART V Analog Output Unit and Analog Power Supply Units CQM1 DA021 CQM1 IPS01 CQM1 IPS02 ...
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Page 187: ...167 PART VII Linear Sensor Interface Units CQM1 LSE01 CQM1 LSE02 ...
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