Chapter 4 Parameter settings and functions
36
4.2.4 Automatic/manual control settings
Automatic control: When PID control, the operation amount is automatically controlled
according to the SV value. Manual control: In this mode, the user can freely set the
operation amount according to the requirements.
The stop function can be set by setting the digital input terminals (DI1, DI2).
Manual control of the amount of operation
When switching from automatic control to manual control, the initial operation amount
can be set.
AUTO-MV: When switching from manual control to automatic control, the amount of
operation is initialized.
PRESET-MV: Use the set operation amount as the initial value.
Parameter Group
Associated
parameter
Parameter
Setting range Factory
default
Unit
Com address
Master
control output
function
PID
CH1
operation
volume
0:Auto-MV:
1:Manual-MV
Auto-MV:
-
400202(00C9H)
Parameter Group
Parameter
Setting range
Factory
Default
Unit
Com address
Monitoring
function
CH1 automatic -
manual control
0: automatic; 1: manual
Auto
-
400004(0003H)
Auto/manual function can be switched freely by controlling the switch.
Auto/manual control remains unchanged when the product is powered down or shut down.
During operation, AT (auto-tuning) can be switched to manual control.
In stop mode, manual control is activated.
If SBA (sensor disconnection alarm) occurs during control, the sensor error operation
amount will be used. In this state, it can be switched to manual control, and the manual
control operation
amount can also be modified.
It is possible to switch to manual/automatic control during control operations.
Priority: Manual Control > Stop > Disconnect (sensor disconnection).