Selecting Alarm Modes; Standby Sequence; Setting Key Protection - Omron E5CS Manual

E5CS-X
J SELECTING ALARM MODES
Select one of the eight alarm modes by using the rotary DIP
switch located next to the rotary DIP switch for temperature scale
range selection. The following table shows alarm functions. The
selector switch is factory-set to position 2, upper-limit alarm.
Switch setting Mode
0, 9 No alarm
1 Upper- and lower-limit alarms
2 Upper-limit alarm
3 Lower-limit alarm
4 Upper- and lower-limit range alarm
5 Upper- and lower-limit alarms with

standby sequence

6 Upper-limit alarm with standby
sequence
7 Lower-limit alarm with standby
sequence
8 Absolute-value alarm
Standby Sequence
Alarm functions with standby sequence suppress nuisance
alarms when the controller is first powered up. As shown in the
temperature charts at right, the alarm output is suppressed until
the temperature exceeds the alarm band or alarm limit one time.
When temperature rises from the set temperature
Upper-limit alarm
Set temperature
Lower-limit alarm
Alarm output ON
OFF
J SETTING KEY PROTECTION
Protect against unauthorized changes in temperature values by
disabling the operation of Up and Down keys. Set function
selector DIP switch "P" to ON. To enable changes from the front
panel, simultaneously press the hidden write protection key
(lower left corner) with the Up and Down keys. If the internal
protection switch is set to OFF, changes can be made simply by
pressing the Up and Down keys.
44
Alarm output Notes
OFF When the alarm mode selector switch is 0 or 9,
neither the alarm value is displayed nor the AL
indicator lights even when the return key is pressed.
Alarm value setting range X may be 0 to full scale.
If the alarm value is shifted outside the temperature If the alarm value is shifted outside the temperature
scale range as a result of changing the scale range, it
is automatically changed to the maximum value of the
newly set scale range.
Alarm value setting range Y must be within the
temperature scale range.
When temperature falls below the set temperature
Upper-limit alarm
Set temperature
Lower-limit alarm
Alarm output
ON
ON
ON
OFF
P X 1 2 3
E5CS-X
4 5 6