Omron E5*C Series User Manual

5 Advanced Operations
5 - 68
E5@C-T Digital Temperature Controllers User’s Manual (H185)
z Related Parameters
Note: The order of priority in respect to the manual MV and the MV at PV error is as follows: Manual MV > MV
at Reset > MV at PV error.
• If the Direct Setting of Position Proportional MV parameter is set to ON, the operation is as shown
below when there is a potentiometer input error.
MV at Reset ≥ 100: Open output turns ON.
MV at Reset ≤ 0: Close output turns ON.
For any other MV at Reset, both the open output and close output will turn OFF.
You can output a fixed MV when an input error or a potentiometer error for close control occurs. To set
the MV at PV Error parameter, use the parameter mask settings and set the MV at PV Error Addition
parameter (Advanced Function Setting Level) to disp (unmask). In reset status, the setting of the MV
at Reset parameter takes priority. With manual operation, the manual MV takes priority.
• Standard Models
For heating/cooling control, the MV at PV Error will apply to the cooling side if the MV is negative and
to the heating side if the MV is positive. The default is 0.0, so an MV will not be output for either
standard or heating/cooling control.
• Position-proportional Models
You can select between open, close, and hold for floating control or when the Direct Setting of
Position Proportional MV parameter is set to OFF. For open, only the open output turns ON. For
close, only the close output turns ON. For hold, both the open output and close output turn OFF. The
default setting is to hold, so both outputs are turned OFF. If you set the Direct Setting of Position
Proportional MV parameter to OFF for close control, you can specify the valve opening. The default
setting is 0.0, which means that the open output and close output will be adjusted so that the valve
opening will go to 0.
Note: The order of priority is as follows: Manual MV > MV at reset > MV at PV error.
• If the Direct Setting of Position Proportional MV parameter is set to ON, the operation is as shown
below when there is a potentiometer input error.
MV at PV error ≥ 100: Open output turns ON.
MV at PV error ≤ 0: Close output turns ON.
For any other MV at PV error, both the open output and close output will turn OFF.
Parameter Setting range Unit Default
MV at Reset Standard control: −5.0 to 105.0
Heating/cooling control: −105.0 to 105.0
% or
none
0.0 or
HOLD
Position-proportional Control
Direct Setting of Position Proportional MV parameter set to ON for close
control: −5.0 to 105.0
Floating control or Direct Setting of Position Proportional MV parameter set
to OFF:
CLOS (Control output 2 turns ON.)
HOLD (Control outputs 1 and 2 turn OFF.)
OPEN (Control output 1 turns ON.)
5-16-3 MV at PV Error
Parameter Setting range Unit Default
MV at PV Error Standard control: −5.0 to 105.0
Heating/cooling control: −105.0 to 105.0
% or
none
0.0 or
HOLD
Position-proportional Control
Direct Setting of Position Proportional MV parameter set to ON for
close control: −5.0 to 105.0
Floating control or Direct Setting of Position Proportional MV param-
eter set to OFF:
CLOS (Control output 2 turns ON.)
HOLD (Control outputs 1 and 2 turn OFF.)
OPEN (Control output 1 turns ON.)

Omron E5*C Series Specifications

General

Brand	Omron
Model	E5*C Series
Category	Controller
Language	English