Thermocouple Input Cassette; Input Specifications; Switch Settings - Panasonic FP7 User Manual

Specifications

2.2 Thermocouple Input Cassette

2.2.1 Input Specifications

 Input specifications
Items
No. of input points
Input range
Digital value
Resolution
Conversion speed
Total accuracy
Input impedance
Insulation method
(Note 1) When the wire of thermocouple is broken or disconnected, the digital value will change to K8000 within 70
seconds. For replacing the thermocouple, program a process for avoiding a risk that would be resulted from the
disconnecting.
(Note 2) From the Power-on to the converted data Ready, the digital conversion value will be K8001. Make a program
not to use the data in the meantime as conversion values.
(Note 3) Although the resolution of the hardware is 0.2 °C, it will be a conversion value by 0.1 °C by the internal
averaging procedure.

2.2.2 Switch Settings

• Set the range selection switches on the cassette before wiring.
 Thermocouple selection switches（AFP7FCTC2）
(Note) For the thermocouple selection switch, the setting at the time of power-on is effective for the operaiton. Note
the setting will not be updated even if the switch is changed during the operation.
 Switch on the back of the cassette
• Always turn OFF the switch mounted on the printed wiring board on the back of the cassette.
2-10
Description
2 channels (insulated between channels)
Thermocouple type K (-50.0 to 500.0 °C), Thermocouple type J (-50.0 to 500.0 °C)
In normal condition
When exceeding rated range
When wire is broken
When getting data ready
0.2 °C (The indication is 0.1 °C by the software averaging procedure.) (Note 3)
100 ms / 2 channels
0.5% F.S. + Cold junction error 1.5 °C
344 kΩ
Transformer insulation, isolation IC insulation
SW No. Name
CH0 thermocouple selection switch
1
(Note)
CH1 thermocouple selection switch
2
(Note)
K – 500 to K5000
K – 501, K5001 or K8000
K8000 (Note 1)
K8001 (Note 2)
Thermocouple
J Type J
K Type K
J Type J
K Type K