[DB600] General Instruction Manual
Operation screen (program operation)
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4-4
AUTO/MANUAL output operation
Switching between AUTO and MANUAL outputs can be done by any of the followings.
Press and hold the
key (with the operation screen displayed)
Parameters on the operation screen
External signal input
Communication
For the specification with 2 outputs, the output 1 and output 2 will changed simultaneously.
Operation type
Description
Automatic output
operation
(AUTO)
Control calculation is performed based on the measured value (PV) and setting
value (SV) of the selected execution No. and the calculated value is output.
Normal control operation is performed by AUTO output operation.
Manual output
operation
(MANUAL)
A fixed value is output regardless of the measured value (PV) or the setting value
(SV).
Switching between AUTO and MANUAL output operations can be done by
external signal input in some specifications.
Key operation on the operation screen and "AUTO/MANUAL output switch" of
"External input (MODEd)" is executed at every operation, therefore, the AUTO
output operation can be enabled by key operation even when the MANUAL
output is ON (conduction state).
Set the output value using the [
] or [
] key. The output range is limited by
"Executing output limiter (MODE0)" and "Output limiter for output 2 (MODE7)".
When the output operation is switched from MANUAL to AUTO, the output value
is moved with the balance less bump less operation.
When you switch to the manual output operation by pressing and holding the
key, it will be switched to PV/OUT1 (operation screen) automatically.
Reference
In switching the output operation type, the preset manual operation by external
signal input (DI) will be given first priority.
The following shows how the output operation type is switched by "External input
(MODEd)".
DI "Preset manual" ON
DI "Preset manual" OFF
Automatic output
operation
Preset manual operation
Automatic output operation
Manual output
operation
Preset manual operation
Automatic output operation
DI "READY/RUN switch" ON
DI "READY/RUN switch" OFF
Automatic output
operation
Preset manual operation
Automatic output operation
Manual output
operation
Manual output operation
Manual output operation
