Publication 900-UM007D-EN-E - January 2011
Configuration & Basic Operation
3-43
Note:
Shading indicates default setting. Set the alarm type independently for
each alarm in the Alarm 1 to 3 Type parameters in the Initial Setting
function group. The default is 2 (Upper-limit alarm).
➊
With set values 1, 4 and 5, the upper- and lower- limit values can be set independently for each alarm type, and
are expressed as “L” and “H.”
➋
Set value: 1 (Upper- and Lower-Limit alarm)
➌
Set value: 4 (Lower-Limit range)
➍
Set value: 5 (Upper- and Lower-Limit with standby sequence)
For the Lower-Limit alarms in cases 1 and 2 above, the alarm is normally OFF if upper- and Lower-Limit
hysteresis overlaps. In case 3, the alarm is always OFF.
➎
Set value: 5 (The alarm is always OFF if upper- and Lower-Limit alarm hysteresis with standby sequence
overlaps.)
9
Absolute-value
Lower-Limit
10
Absolute-value
Upper-Limit with standby
sequence
11
Absolute-value
Lower-Limit with standby
sequence
12
Loop Break Alarm (LBA)
(Alarm 1 Type only)
—
13
PV Change Rate Alarm
—
Table 3.N — Alarm Values
Set Value
Alarm Type
Alarm Output Operation
When Alarm Value
X is Positive
When Alarm Value
X is Negative
ON
OFF
X
0
ON
OFF
X
0
X
ON
OFF
0
X
ON
OFF
0
ON
OFF
X
0
ON
OFF
X
0
L
H SP
L
H
SP
L
H
SP
L
H
SP
L
H
SP
Case 1
Case 2
Case 3 (Always ON)
H < 0, L > 0
|H| < |L|
H > 0, L < 0
|H| > |L|
H < 0, L > 0
|H| ≥ |L|
H < 0, L < 0
H > 0, L < 0
|H| ≤ |L|
Case 1
Case 2
Case 3 (Always OFF)
H < 0, L > 0
|H| < |L|
H > 0, L < 0
|H| > |L|
H < 0, L > 0
|H| ≥ |L|
H < 0, L < 0
H > 0, L < 0
|H| ≤ |L|
L H SP
SP L H
H SP L
H L SP
SP H L
Summary of Contents for Allen-Bradley 900-TC16
Page 1: ...USER MANUAL Bulletin 900 TC8 900 TC16 900 TC32 Series B Temperature Controllers...
Page 2: ...2...
Page 72: ...Publication 900 UM007D EN E January 2011 3 2 Configuration Basic Operation Figure 3 3 900 TC32...
Page 136: ...Publication 900 UM007D EN E January 2011 3 66 Configuration Basic Operation Notes...
Page 340: ...Publication 900 UM007D EN E January 2011 5 112 Parameter Functions Definitions Notes...
Page 350: ...Publication 900 UM007D EN E January 2011 6 10 Troubleshooting Error Indication Notes...
Page 406: ...Publication 900 UM007D EN E January 2011 D 8 Glossary Notes...
