Omron EJ1 User Manual

73
Setting Control Specifications Section 4-3
Note 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.
4-3-7 Setting the Manipulated Variable (MV)
■ 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.
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:
Note 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.
Operation When
Switching between Auto
and Manual Modes
The following diagram shows the operation when the mode is switched
between auto mode and manual mode.
Variable type Parameter name Setting range Default
E5/A5 (See note.) SP Tracking (Channel) 0: Disabled
1: Enabled
0
Conditions for use The Remote SP function must be enabled.
Variable type Parameter name Setting range Default
D5/95
Manual MV (Channel)
−5.0 to 105.0 (for standard control) %
−105.0 to 105.0 (for heating/cooling control) %
0
Conditions for use The control method must be set to 2-PID control in manual
mode.
−105.0% 105.0%100.0%
0.0%
100.0%
Manual MV
Actual MV
Standard
control or
heating
output
0.0%
−100.0%
Actual MV
Cooling
output
105.0%−105.0% −100.0%
Manual MV
Event input Operation
OFF Auto Mode
ON Manual Mode
Tim
e
MV
MV
changes
Power
OFF
Power
ON
MV
changes
Power
interrupted
Manual
Auto
Inherits the MV that existed
before the mode change.

Omron EJ1 Specifications

General

Brand	Omron
Model	EJ1
Category	Temperature Controller
Language	English