Features - Mitsubishi Electric MELSEC-Q Series User Manual

1 OVERVIEW

1.1 Features

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The Q62HLC has the following features.
(1) High speed PID control
The Q62HLC is an intelligent function module that performs the continuous
proportional control.
With the Q62HLC, the high speed sampling cycle (25ms), analog input
(thermocouple, micro voltage, voltage, and current) with high accuracy and
resolution, and the current output are available.
This enables the control that requires high-speed response, such as the high-
speed rising and falling temperature control, pressure control and flow rate
control.
(2) Optimum PID control
(a) The Q62HLC automatically performs PID control by setting the PID constants
(proportional band (P), integral time (I), derivative time (D)) and the set value
(SV) required for PID operations.
No special instruction is required to perform PID control.
(b) Five control functions are available for the Q62HLC. The Q62HLC can select
the most suitable control function for the control target.
1) Normal mode (Normal control mode)
: The Q62HLC controls the control target using the manipulated values
calculated in PID operations as the control output.
2) Program control (Program control mode)
: The Q62HLC changes the set values automatically and performs the
control, following the set program pattern. The manipulated value
calculated in PID operations is used as the control output.
3) Cascade control
: The Q62HLC performs the control using the channel 1 as master and the
channel 2 as slave.
4) Manual control (Manual control mode 1)
: The Q62HLC controls the control target using the numerical value written
in the manual output setting (-5.0 to 105.0%) as the control output.
5) Manual control (Manual control mode 2)
: The Q62HLC controls the control target using the numerical value written
in the manual output setting (0 to 4000) as the control output.
This mode is for the simplified analog I/O function.
(c) The Q62HLC automatically set PID constants by using the auto tuning
function in normal control mode.
This enables the use of PID constants without considering cumbersome PID
operation expressions (refer to Section 3.2.1).
MELSEC-Q
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