Setting The Manipulated Variable (Mv) - Omron EJ1 User Manual

Setting Control Specifications
Note
4-3-7

Setting the Manipulated Variable (MV)

Standard
control or
heating
output
Note
Operation When
Switching between Auto
and Manual Modes
Variable type
E5/A5 (See note.)
Conditions for use
This parameter can be set only when operation is stopped.
SP tracking can be used for channel 1 or channel 2 for the TC4, but only for
channel 1 for the TC2.
Manual MV
If control is set to manual mode, the standard control function will stop and the
MV set in the Manual MV parameter can be output.
Variable type Parameter name
D5/95 Manual MV (Channel)
Conditions for use
Actual MV
100.0%
0.0%
−105.0%
100.0% 105.0%
Use an event input or operation command to switch between auto mode
(standard control) and manual mode. When using an event input to switch
modes, set the Event Input Assignment parameter to Auto (0)/Manual (1).
After the event input is set, it will operate as follows:
Event input
OFF
ON
Refer to 6-4-11 Operation Commands for details on using an operation com-
mand to switch the mode.
Check the Channel Status parameter (variable type C4/84) to confirm whether
the Controller is in auto mode or manual mode.
The following diagram shows the operation when the mode is switched
between auto mode and manual mode.
MV
MV
changes
Manual
Auto
Parameter name
SP Tracking (Channel) 0: Disabled
The Remote SP function must be enabled.
− 5.0 to 105.0 (for standard control) %
− 105.0 to 105.0 (for heating/cooling control) %
The control method must be set to 2-PID control in manual
mode.
−105.0% −100.0%
Manual MV
Operation
Auto Mode
Manual Mode
Inherits the MV that existed
before the mode change.
Power Power MV
OFF ON changes
Power
interrupted
Section 4-3
Setting range
0
1: Enabled
Setting range
Actual MV
105.0%
Manual MV
0.0%
Cooling
−100.0%
output
Time
Default
Default
0
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