Settings - Omron E5AN-H User Manual

Executing Heating/Cooling Control
Automatic Cooling
Coefficient Adjustment
Note
4-4-2

Settings

Setting Heating/Cooling Control
Operating Procedure
Initial Setting Level
Standard or
s-hc
Heating/
Cooling
stnd
Setting the Cooling Coefficient
Operating Procedure
PID Setting Level
Display PID
d.pid
selection
1
PID1 Cooling
1.csc
Coefficient
1.00
1.csc
10.00
Setting the Dead Band
Operating Procedure
Adjustment Level
Dead Band
C
c-db
0.0
C
c-db
5.0
By executing AT during heating/cooling control, the cooling coefficient can be
automatically calculated along with the PID parameters.
Parameter name
Automatic Cooling Coef-
ficient Adjustment
If there is strong non-linear gain for the cooling characteristics, such as when
cooling water boils for cooling control, it may not be possible to obtain the opti-
mum cooling coefficient at the Controller, and control may take the form of
oscillating waves. If that occurs, increase the proportional band or the cooling
coefficient to improve control.
To set heating/cooling control, set the Standard or Heating/Cooling, Dead
Band, and Cooling Coefficient parameters.
Standard or heating/cooling = Heating/cooling
1. Press the O Key for at least three seconds to move from the operation
level to the initial setting level.
2. Select "heating/cooling control" in the initial setting level.
stnd: Standard control
h-c:
Heating/cooling control
PID 1 Cooling Coefficient = 10
1. Press the O Key to move from the operation level to the PID setting level.
The current PID set number will be displayed. Use the U or D Key to
select 1.
2. Select the PID1 Cooling Coefficient parameter by pressing the M Key.
3. Press the U and D Keys to set 10.00.
Dead Band = 5
1. Select the Dead Band parameter in the adjustment level.
2. Use the U Key to set the parameter to 5.0.
Setting rage
OFF: Disabled, ON: Enabled
Section 4-4
Default
OFF
95