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• High/Low limit range alarm
• High/Low limit range with standby alarm
Alarm output is in standby.
(Fig. 7.2.4-7)
(Fig. 7.2.4-8)
• Process high alarm
• Process high with standby alarm
Alarm output is in standby.
(Fig. 7.2.4-9)
(Fig. 7.2.4-10)
• Process low alarm
• Process low with standby alarm
Alarm output is in standby.
(Fig. 7.2.4-11)
(Fig. 7.2.4-12)
For the alarm types (High limit alarm, High/Low limits alarm, Process high alarm), alarm output is
activated when the indication is overscale, and the standby function is released for the alarms with
standby function.
For the alarm types (Low limit alarm, High/Low limits alarm, Process low alarm), alarm output is
activated when the indication is underscale, and the standby function is released for the alarms
with standby function.
When the alarm action De-energized is selected, the output ON/OFF status acts conversely to the
alarm action described above. (The Event indicators act the same as the action Energized.)
Energized
De-energized
Event indicators
Light
Light
Event output
ON
OFF
ON
EV1 hysteresis
OFF
SV EV1 value
EV1 value
ON
EV1 hysteresis
OFF
SV EV1 value
EV1 value
ON
EV1 hysteresis
OFF
EV1 value
ON
EV1 hysteresis
OFF
EV1 value
ON
EV1 hysteresis
OFF
EV1 value
ON
EV1 hysteresis
OFF
EV1 value
Содержание PCA1
Страница 1: ...PROGRAMMABLE CONTROLLER PCA1 INSTRUCTION MANUAL ...
Страница 9: ... 9 2 Name and Functions of Controller Fig 2 1 ...
Страница 179: ... 179 ...