General Description - Mitsubishi Q Series User Manual

1 GENERAL DESCRIPTION

1 GENERAL DESCRIPTION
This manual deals with the specifications, handling and instructions wiring and
programming methods of the following loop control module Q62HLC (hereafter
abbreviated to the Q62HLC used with the MELSEC-Q series programmable controller
CPU module (hereafter abbreviated to the programmable controller CPU).
(1) What is Q62HLC
Programmable
controller CPU
Initial
setting
(TO
instruction)
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(a) The Q62HLC is the intelligent function module for the continuous proportional
control.
The Q62HLC converts analog inputs from various external sensors
(temperature, humidity, pressure, and flow rate, etc.) into measured values
(with 16-bit signed binary), performs PID operations to attain target set values,
and outputs the calculated manipulated values to external operation device
with current output.
(b) The Q62HLC has the following five control functions.
• Normal mode (Normal control mode)
• Program control (Program control mode)
• Cascade mode
• Manual control (Manual control mode 1)
• Manual control (Manual control mode 2)
(c) The Q62HLC has an auto tuning function which automatically sets the
proportional band (P), integral time (I) and derivative time (D) for PID
operations.
(d) The Q62HLC accepts K, J, T, B, S, E, R, N, PLII and W5Re/W26Re type
thermocouples and the sensors compatible with various input ranges of micro
voltage, voltage and current.
Q62HLC
Buffer memory
CH1
Process
value
CH2
Manipulated
CH1
value
CH2
Set value
CH1
CH2
Fig. 1.1 Q62HLC Processing Outline
Input from temperature
CH1
Manipulated value Current output
CH1
MELSEC-Q
sensor
Device to be controlled
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