8. PARAMETER DESCRIPTION
IMR02C15-E4
8-111
Continued from the previous page.
When high alarm with hold action/re-hold action is used for Event
function, alarm does not turn on while hold action is in operation. Use
in combination with a high alarm without hold action in order to
prevent overheating which may occur by failure of control devices,
such as welding of relays.
Related parameters
Parameter setting mode
• Event 1 set value (EV1) to Event 4 set value (EV4) (P. 8-20)
• Event 1 set value (EV1) [high] to Event 4 set value (EV4) [high] (P. 8-20)
• Event 1 set value (EV1’) [low] to Event 4 set value (EV4’) [low] (P. 8-22)
Engineering mode:
• Event 1 type to Event 4 type (P. 8-101)
• Event 1 differential gap to Event 4 differential gap (P. 8-113)
• Event 1 output action at input burnout to Event 4 output action at input
burnout (P. 8-115)
• Energized/De-energized of Event 1 output to Energized/De-energized of
Event 4 output (P. 8-116)
• Event 1 timer to Event 4 timer (P. 8-118)
• Event 1 interlock to Event 4 interlock (P. 8-120)
îš„ Description of function
(1) Hold action
When hold action is ON, the event action is suppressed at start-up or STOP to RUN until the measured
value has entered the non-event range.
[
With hold action] [Without hold action]
ONON
Event status
Time
Deviation
Hold action area
Measured value (PV)
Measured value (PV)
Event set value
Set value (SV)
OFF
Time
Deviation
Measured value (PV)
Event set value
Set value (SV)
ON
Event status
OFF
Measured value (PV)
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