Omron E5AC-T User Manual page 327

6 Parameters
oreV
• "Direct operation" refers to control where the manipulated variable is increased when the
process value increases. Alternatively, "reverse operation" refers to control where the
manipulated variable is increased when the process value decreases.
Function
Setting
alt1
alt2
alt3
alt4
• Set the alarm type independently for each alarm in the Alarm 1 to 4 Type parameters in
the Initial Setting Level.
• The alarms that can be set are listed in the following table.
Function
• You can use an LBA (12) only for alarm 1. You cannot use an LBA on a
Position-proportional Model.
Set
value
0
1
2
(default)
3
6 - 66
Direct/Reverse Operation
Setting range
or-r: Reverse operation, or-d: Direct operation
Alarm 1 Type
Alarm 2 Type
Alarm 3 Type
Alarm 4 Type
Alarm type
When alarm value
X is positive
Alarm function OFF
Upper- and
ON
*1
lower-limit
OFF
Upper-limit
ON
OFF
Lower-limit
ON
OFF
Default
Alarm 1 must be assigned.
Alarm 2 must be assigned.
Alarm 3 must be assigned.
Alarm 4 must be assigned.
Alarm output operation
When alarm value
X is negative
Output OFF
*2
L H
PV
SP
X X
ON
PV OFF
SP SP
X X
ON
PV OFF
SP SP
E5@C-T Digital Temperature Controllers User's Manual (H185)
or-r
Description of function
No alarm
Set the upward deviation in
the set point for the alarm
upper limit (H) and the
lower deviation in the set
point for the alarm lower
limit (L). The alarm is ON
when the PV is outside this
deviation range.
Set the upward deviation in
the set point by setting the
PV
alarm value (X). The alarm
is ON when the PV is higher
than the SP by the deviation
or more.
Set the downward deviation
in the set point by setting
PV
the alarm value (X). The
alarm is ON when the PV is
lower than the SP by the
deviation or more.