Digital Position-Proportional Controllers
E5EZ-PRR
41
■
Alarm Types
• The conditions of alarm output are jointly determined by Alarm Type and Alarm Hysteresis.
•
Below is an explanation of the alarm type, alarm value, upper alarm limit, and lower alarm limit parameters.
0
Alarm function OFF
Output OFF
1
See note 1.
Upper-and lower-limits
See note 2.
Upper limits
2
3
Lower limits
4
See note 1.
Upper-and lower-limits
See note 3.
Upper-and lower-limit with standby sequence
5
See note 1.
See note 4.
(See note 5)
Upper-limit with standby sequence
6
Lower-limit with standby sequence
7
Absolute-value upper-limits
8
Absolute-value lower-limits
9
Absolute-value upper-limit with standby sequence
10
Absolute-value lower-limit with standby sequence
11
ON
OFF
L H
SP
X
ON
OFF
SP
X
ON
OFF
SP
X
SP
ON
OFF
X
ON
OFF
SP
X
ON
OFF
SP
X
ON
OFF
SP
X
ON
OFF
SP
ON
OFF
L H
SP
ON
OFF
L H
SP
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
X
ON
OFF
0
SP
ON
OFF
X
L H SP
SP L H
L SP H
H LSP
SP H L
H< 0.L >0
|H| < |L|
H> 0.L <0
|H| > |L|
Case 1
Case 2
Case 3 (Always ON)
H< 0.L >0
|H| < |L|
H> 0.L <0
|H| > |L|
H< 0.L <0
L H SP
SP L H
L SP H
H L SP
SP H L
3. Set value: 4, Upper-and lower-limit range
2. Set value: 1, Upper-and lower-limit
Case 1
Case 2
Case 3 (Always OFF)
4. Set value: 5, Upper-and lower-limit with standby sequence
*for the upper and lower alarm limits above
Example of case 1 and case 2: in case 3, the alarm will always be OFF.
5. Set value: 5, Upper-and lower-limit with standby sequence
Alarm
1
Type
2
Alarm output operation
Set
values
Type
When X is positive
When X is negative
Note: 1. Upper and lower limits can be set independently for each alarm point, represented by L
and H. The set values are 1, 4, and 5.
- In case 1 and 2, if there are any overlaps in the upper and lower limits for hysteresis,
the alarm will always be OFF.
If there are any overlaps in the upper and lower limits for hysteresis, the alarm will always
be OFF.
There are alarm types 1 to 2 (initial setting level), and settings should be made
independently for each alarm.
The initial value is 2: upper limit.
alt1
2
l.ini
