E5AX-LA/-MA
E5AX-LA/-MA
7
Switch
Mode (SW203, 205)
Alarm output
Setting range
setting
Alarm operation
Display
When X is positive
When X is negative
0
No alarm
No display
OFF
---
1
Upper- and lower-limit alarm
)––(
X
X
---
0 to 9999
2
Upper-limit alarm
–––(
X
X
–999 to 9999
3
Lower-limit alarm
)–––
X
X
4
Upper- and lower-limit range
alarm
–()–
X
X
---
0 to 9999
5
Upper- and lower-limit alarm with
standby sequence
3––e
X
X
---
6
Upper-limit alarm with standby
sequence
–––e
X
X
–999 to 9999
7
Lower-limit alarm with standby
sequence
3–––
X
X
8
Absolute-value alarm
1––(
Y
0
Y
0
9
SW205: Proportional alarm*
pro
X
X
SW203: No alarm
No display
OFF
*The proportional alarm is detected when the temperature reaches
the set alarm point (A in the figure on the right), which is the lower
limit of a proportional band. When the temperature rises to the upper
limit of the proportional band (point B in the figure), the alarm output
is turned ON. This alarm function is convenient when the main set-
ting is used for heating control, while the proportional alarm function
is used for cooling control, so that heating and cooling control can be
easily performed.
Note:
PB: proportional band (fixed to 10.0% FS)
Proportional period is 20 seconds.
The operation of the alarm is not affected by pin
2 of the operating mode selector (SW201).
PB
X
A
B
SP
ON
Key Protection Switch (SW101, PROTECT)
When the key protection switch is set to the ON position, the Level Key, Up and Down Keys, and Auto-tuning Key cannot be operated. In effect,
the Digital Controller is write-protected and the set values (such as the alarm value) can be read out only. The set point, however, will not be
protected if the SP protection disable is turned ON (pin 4 of SW201).