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Indication range and Control range for thermocouple inputs other than the
above: [Input range low limit – 50
(100
)] to
[Input range high limit + 50
(100
)]
When Base channel (*) is DC input
:
Indication range and Control range:
[CH1(CH2) difference (addition) indication low limit–1 % of Difference
(addition) indication span] to [CH1(CH2) difference (addition) indication
high limit + 10 % of Difference (addition) indication span]
For any input, the PV/SV display flashes "
" when input drops
below [CH1(CH2) difference (addition) indication low limit –1 % of
Difference (addition) indication span]. The PV/SV display flashes
"
" when input exceeds [CH1(CH2) difference (addition) indication
high limit + 10 % of Difference (addition) indication span].
(*)
Base channel
:
If Difference (or addition) input is selected for Input 1 block (console
software), CH1 (Input 1) will become the Base channel, and Indication
range and Control range will be based on the Base channel input range.
If Difference (or addition) input is selected for Input 2 block (console
software), CH2 (Input 2) will become the Base channel, and Indication
range and Control range will be based on the Base channel input range.
Infrared thermocouple burnout
:
If infrared thermocouple is burnt out, input will become irregular, so
indication will be incorrect.
Console
Communication
The following operations can be carried out via console connector
(use-specific cable) from an external computer.
(1) Reading and setting of the SV, PID values and each set value
(2) Reading of PV and action status
(3) Function change
Cannot be used together with the Serial communication (C5 option).
Block Function
Console software function. Each channel has the following independent
blocks, which can be combined freely.
(Cannot be set via keypad operation.)
•
Input block
(Channel difference input, Channel addition input)
•
Control block
[Heating/Cooling control output spec, External setting input
(Remote) spec, Cascade control spec]
•
Output block
[Output 2 output spec, 1-input 2-output spec, Transmission
output spec (Selectable when CH2 output is DC current output.)]
Initial Selection Status:
Power Failure
Countermeasure
The setting data is backed up in the non-volatile IC memory.
Self-diagnosis
The CPU is monitored by a watchdog timer, and if an abnormal status is
found on the CPU, the controller is switched to warm-up status.
Warm-up Indication
After the power supply to the instrument is turned on, the sensor input
characters are indicated on the PV/SV display for approx. 4 seconds.
Display-off Function
Indication item (PV, SV or No indication) on the PV/SV display can be
selected during Display selection by keypad.
When any item except No indication is selected, displays are turned off if
operation does not take place for the time set during Indication time setting.
If any key is pressed, displays will be turned ON again.
If indication time is set to 0 (zero), continuous indication will occur, and this
function will be disabled.
Auto-light Function
Automatically measures and controls brightness of the CH1, CH2 PV/SV
displays.
Inpu
t 1
Input 1 block
Control 1 block
Output 1 block
Outpu
t 1
Inpu
t 2
Input 2 block
Control 2 block
Output 2 block
Output 2
