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(2) The Q64TCTTBWN and Q64TCRTBWN
The Q64TCTTBWN and Q64TCRTBWN are Q64TCTTN and Q64TCRTN-based modules which possess an
additional function to detect heater disconnection using input from external current sensors.
Buffer memory
Programmable
controller CPU
Initial
setting
(To instruction)
Set value (SV)
Set value (SV)
PID
operation
Temperature
process
value (PV)
Manipulated
value (MV)
Manipulated
value (MV)
Temperature
Device to be
controlled
Input from temperature sensor
Transistor output
(ON/OFF pulse)
CH1
CH4
CH4
CH4
CH1
CH1
CH1
CH1
Q64TCTTBWN, Q64TCRTBWN
CH4
CH1
Current
sensor
Disconnection
detection
Alarm
Temperature
process
value (PV)
CH
Temperature
process value (PV)
(Un\G9 to Un\G12)
CH
Manipulated value
(MV)
(Un\G13 to Un\G16)
CH
Set value
(SV) setting
(Un\G34, Un\G66,
Un\G98, Un\G130)