8 Basic-type Digital Temperature Controller E5CN/E5CN-U
Alarm Outputs
Each alarm can be independently set to one of the following 13 alarm types. The default is 2: Upper limit.
Auxiliary outputs are allocated for alarms. ON delays and OFF delays (0 to 999 s) can also be specified.
Note: For models with heater burnout, SSR failure, and heater overcurrent detection, alarm 1 will be an OR output of the alarm selected from the
following alarm types and the alarms for heater burnout, SSR failure, and heater overcurrent. To output only a heater burnout alarm, SSR
failure alarm, and heater overcurrent alarm for alarm 1, set the alarm type to 0 (i.e., no alarm function).
✽1. 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.”
✽2. Set value: 1, Upper- and lower-limit alarm
✽3. Set value: 4, Upper- and lower-limit range
✽4. Set value: 5, Upper- and lower-limit with standby sequence
For Upper- and Lower-Limit Alarm Described Above
• Case 1 and 2
Always OFF
when the upper-limit and lower-limit hysteresis
overlaps.
• Case 3: Always OFF
✽5. Set value: 5, Upper- and lower-limit with standby sequence
Always OFF
when the upper-limit and lower-limit hysteresis
overlaps.
Set
value
Alarm type
Alarm output operation
When X is
positive
When X is
negative
0
Alarm function
OFF
Output OFF
1
✽1
Upper- and lower-
limit
✽2
2 Upper limit
3Lower limit
4
✽1
Upper- and lower-
limit range
✽3
5
✽1
Upper- and lower-
limit with standby
sequence
✽4
6
Upper-limit with
standby sequence
7
Lower-limit with
standby sequence
8
Absolute-value
upper-limit
9
Absolute-value
lower-limit
10
Absolute-value
upper-limit with
standby sequence
11
Absolute-value
lower-limit with
standby sequence
12
LBA
(for alarm 1 only)
---
13
PV change rate
alarm
---
ON
OFF
SP
LH
SP
X
ON
OFF
SP
X
ON
OFF
SP
X
ON
OFF
SP
X
ON
OFF
SP
LH
ON
OFF
SP
LH
ON
OFF
✽5
SP
X
ON
OFF
SP
X
ON
OFF
SP
X
ON
OFF
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
X
ON
OFF
LH
H < 0, L > 0
⏐H⏐ < ⏐L⏐
SP
Case 1
LH
H > 0, L < 0
⏐H⏐ > ⏐L⏐
SP
Case 2
LH
H < 0, L < 0
SP
LH
H < 0, L > 0
⏐H⏐ ≥ ⏐L⏐
SP
LH
H > 0, L < 0
⏐H⏐ ≤ ⏐L⏐
SP
Case 3 (Always ON)
LHSP
Case 1
LHSP
Case 2
LHSP
L
L
HSP
HSP
Case 3 (Always OFF)
H < 0, L > 0
⏐H⏐ < ⏐L⏐
H > 0, L < 0
⏐H⏐ > ⏐L⏐
H < 0, L < 0
H < 0, L > 0
⏐H⏐ ≥ ⏐L⏐
H > 0, L < 0
⏐H⏐ ≤ ⏐L⏐