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(2) Standby (STBY)
This can be set by specifying STBY (standby) at DI mode.
If STBY is selected, the 0-3 STBY action setting screen is for monitoring only, and the setting cannot be performed.
When DI input signal is OFF: The controller is under control. PID control is executed.
When DI input signal is ON: The controller is on standby.
For STBY, refer to section 5-5 (4).
(3) Control action characteristics (ACT)
This can be set by specifying ACT (action characteristics) at DI mode.
If ACT is selected, the 1-45 control output characteristic setting screen is for monitoring only, and the setting cannot
be performed.
When DI input signal is OFF: RA characteristics are assumed.
When DI input signal is ON: DA characteristics are assumed.
For RA/DA, refer to section 8-7.
8-9. Soft Start
It is the function to raise control output gradually in a set time upon applying power, releasing STBY, and at the time of
return from scaleover to normal. The function effectively prevents excess current from being present in a heater or the
like.
(1) Conditions of soft start function is put in action
ۑ
1
Under the automatic output mode, when power is applied, when STBY is released, or when a normal state is
returned to from scaleover.
ۑ
2
When P (proportional band) is not OFF on the 1-2 output 1 proportional band setting screen.
ۑ
3
When soft start time has been set, i.e., not OFF on the 1-46 soft start time setting screen.
(2) Conditions of soft start is released
ۑ
1
Soft start time has elapsed normally.
ۑ
2
An output value under soft start control exceeds a PID operated output value.
ۑ
3
Soft start time is turned OFF by key operation.
ۑ
4
The automatic output mode is changed to the manual output mode by key operation.
ۑ
5
AT (auto tuning) is executed by key operation.
ۑ
6
The setting of P (proportional band) is changed to OFF by key operation.
ۑ
7
The measuring range of input is changed by key operation.
ۑ
8
A control output characteristic is changed by key operation.
ۑ
9
When the mode is switched to STBY.
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