General Description - Mitsubishi Electric MELSEC Q Series User Manual

1 GENERAL DESCRIPTION

1 GENERAL DESCRIPTION
1
Programmable
controller CPU
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This manual deals with the specifications, handling and instructions wiring and
programming methods of the following temperature control modules used with the
MELSEC-Q series programmable controller CPU module (hereafter abbreviated to the
programmable controller CPU).
• Type Q64TCTT temperature control module
• Type Q64TCRT temperature control module
• Type Q64TCTTBW temperature control module with disconnection detection function
• Type Q64TCRTBW temperature control module with disconnection detection function
(1) What are the Q64TCTT and Q64TCRT?
(a) The Q64TCTT and Q64TCRT are modules designed to convert input values
from external temperature sensors into 16-bit signed BIN (binary) data,
perform PID operations to attain target temperatures, and provide transistor
outputs for temperature control.
(b) The Q64TCTT and Q64TCRT have an auto tuning function which
automatically sets the proportional band (P), integral time (I) and derivative
time (D) for PID operations.
(c) The Q64TCTT accepts K, J, T, B, S, E, R, N, U, L, PL II and W5Re/W26Re
type thermocouples. The Q64TCRT accepts Pt100 and JPt100 type platinum
temperature-measuring resistors.
Process
value
Manipulated
value
Initial
Set value
setting
(To
instruction)
Fig. 1.1 Q64TCTT or Q64TCRT Processing Outline
search engine
Q64TCTT,Q64TCRT
Buffer memory
CH1
CH4
Manipulated value
CH1
CH4
CH1
CH4
MELSEC-Q
Input from temperature
sensor
CH1
Transistor output
(ON/OFF pulse)
CH1
Temperature
Device
to be
controlled
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