E5CNH E5AN-H E5EN-H Digital Controllers User's Manual - OMRON

Performing Manual Control Section 4-13
Related Displays and Parameters
120
The automatic display return function will not operate in manual mode.
Balanceless-bumpless operation will be performed for the MV when
switching between manual and automatic operation. (See note.)
Switching between manual and automatic operation is possible for a
maximum of one million times.
When close control is used or when the Direct Setting of Position Proportional
MV parameter is set to ON:
Just as with standard models, the MV is set numerically.
The automatic display return function will not operate in manual mode.
Balanceless-bumpless operation will be performed for the MV when
switching between manual and automatic operation. (See note.)
Note In balanceless-bumpless operation, the MV before switching is
used initially after the switch and then gradually changed to achieve
the proper value after switch to prevent radical changes in the MV
after switching operation.
If a power interruption occurs during manual operation, manual operation
will be restarted when power is restored using the same MV as when
power was interrupted.
Switching between manual and automatic operation is possible for a maximum
of one million times.
Operation will be as described below if a potentiometer input error occurs.
When the Manual MV Limit Enable Parameter Is Set to OFF:
Manual MV ≥ 100
Manual MV ≤ 0
If the manual MV is other than the above, the open and close outputs
will both be OFF.
When the Manual MV Limit Enable Parameter Is Set to ON:
Manual MV = MV upper limit
Manual MV = MV lower limit
Open output: ON
Close output: ON
Open output: ON
Close output: ON
If the manual MV is other than the above, the open and close outputs
will both be OFF.
Parameter name Symbol Level Remarks
PV/MV (Manual MV) --- Manual Control Level Changes the manual MV.
Standard: −5.0 to 105.0 (See note 2.)
Heating/cooling: −105.0 to 105.0 (See note 2.)
Position-proportional: −5.0 to 105.0 (See notes 2
and 3.)
Direct Setting of Position
Proportional MV
pmvd Advanced Function Setting
Level
Selects the method for specifying each MV for
manual operation, when stopping, or when an
error occurs.
OFF: All open, hold, all closed
ON: −5.0 to 105%
Auto/Manual Switch a-m Operation Level Switches between automatic and manual
modes.
Auto/Manual Select Addition
amad Advanced Function Setting
Level
Enables switching between automatic and manual
modes.
Note (1) Refer to 4-17 Output Adjustment Functions for information on the priority
for the MV.