Features - Mitsubishi Q Series User Manual

1 GENERAL DESCRIPTION

1.1 Features

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The Q62HLC has the following features.
(1) High speed continuous proportional control (PID control)
The Q62HLC is the intelligent function module that performs the continuous
proportional control.
The specifications of the Q62HLC are the high speed 25ms sampling cycle, the
high accurate and high resolution analog input (thermocouple, micro voltage,
voltage and current), and the current output.
This will enable the Q62HLC to support the target controls with high speed
response such as the rising and falling temperature control, pressure control and
flow rate control with high speed.
(2) Optimum temperature adjustment control (PID control)
(a) The Q62HLC exercises PID control automatically by merely setting the PID
constants (proportional band (P), integral time (I), derivative time (D)) (set
value: (SV) necessary for PID operations.
Therefore, no special instructions are needed to perform PID control.
(b) The Q62HLC can be operated selecting a control function from several
options.
1) Normal mode (Normal control mode)
: controls the control target using the manipulated values calculated in PID
operations as the control output.
2) Program control (Program control mode)
: changes the set values automatically and performs the control, following
the set program pattern. The calculated operational rate in PID operations
is used for the control output.
3) Cascade control
: performs the control using the channel 1 as master and the channel 2 as
slave.
4) Manual control (Manual control mode 1)
: controls the control target using the numerical values written in the
manual output setting (-5.0 to 105.0%) as the control output.
5) Manual control (Manual control mode 2)
: controls the control target using the numerical values (0 to 4000) written in
the manual output setting as the control output.
This mode is for the simplified analog I/O function.
(c) Using the auto tuning function at normal control mode, enables the PID
constants to be set automatically by the Q62HLC.
Hence, you can use the equipment without being conscious of cumbersome
PID operation expressions to find the PID constants.
MELSEC-Q
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