Mitsubishi Electric MELSEC Q Series User Manual page 17

1 GENERAL DESCRIPTION
Programmable
controller CPU
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REMARK
1) Refer to Section 3.2.1 for the auto tuning function.
2) Refer to Section 3.1.2 for the measured temperature ranges of the temperature
sensors that can be connected to the Q64TC.
(2) What are the Q64TCTTBW and Q64TCRTBW?
The Q64TCTTBW and Q64TCRTBW are the Q64TCTT and Q64TCRT-based
modules which have the additional function to detect a heater wire disconnection
using inputs from external current sensors.
Process
value
Manipulated
value
Initial
Set value
setting
(To
instruction)
Fig. 1.2 Q64TCTTBW or Q64TCRTBW Processing Outline
REMARK
1) Refer to Section 3.2.7 for the disconnection detection function of the
Q64TCTTBW and Q64TCRTBW.
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Q64TCTTBW,Q64TCRTBW
Buffer memory
CH1
CH4
Manipulated value
CH1
CH4
CH1
CH4
CH1
Disconnection
detection
CH4
MELSEC-Q
Input from temperature
sensor
CH1
Transistor output
(ON/OFF pulse)
CH1
Current Temperature
sensor
Device
to be
controlled
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