Multi Loop Controller
42
ONOFFOFF ONEvent
Event set value (EV),
EV_HYS
PV
start run
● Event set value (EVVL) and event hysteresis (EVHY)
Event set value is set at EVVL parameter, and event hysteresis at EVHY.
Setting range is different depending on event type.
● Event stand by run
If correspond to below conditions, in event stand by run, very first event does not take place at
event occurrence.
- When power is supplied
- When run is started
- When event type (EVT) is changed
- When set value (SV) is changed
* Setting range and hysteresis are not applied to events other than the above types.
* If event type (EVTY) is changed, event set value (EVVL) and event hysteresis (EVHY) are initialized.
If process value (PV) is out of pre-set event value (EVVL), event occurs, and for release, it should approach up
to event hysteresis (EVHY). For process value (PV) high event, event occurrence and release are as below.
Event type
Setting range Initial value
Hysteresis
Deviation high limit
EUS (0 ~ 100 %)
EUS (100 %) EUS (0 ~ 10 %)
Deviation low limit EUS (0 ~ 100 %) EUS (100 %) EUS (0 ~ 10 %)
Deviation
high/low limit
EUS (0 ~ 100 %) EUS (100 %)
EUS (0 ~ 10 %)
Within deviation range EUS (0 ~ 100 %) EUS (0 %) EUS (0 ~ 10 %)
PV high limit EU (0 ~ 100 %) EUS (100 %) EUS (0 ~ 10 %)
PV low limit EU (0 ~ 100 %) EUS (0 %) EUS (0 ~ 10 %)
SV high limit EU (0 ~ 100 %) EUS (100 %) EUS (0 ~ 10 %)
SV low limit
EU (0 ~ 100 %) EUS (0 %)
EUS (0 ~ 10 %)
Heater disconnection
(HBA)
0 / 1 ~ 50 A 0 (OFF) 2 A