Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 57

Deviation alert
When the deviation (E) between the temperature process value (PV) and the set value (SV) meets a particular condition, the
system issues the deviation alert.
The set value (SV) that is referenced is the "set value (SV) monitor".
■Setting the set value (SV) and the setting change rate limiter
If the Setting change rate limiter has been set: The "CH1 set value (SV) monitor" (Un\G406) obeys the set value (SV) after the
change as described below.
Temperature process value (PV)
Set value (SV) 2
Change
Set value (SV) 1
0
(1) "Set value (SV) Setting" of "Control basic parameters" in "Application Setting"
(2) 'CH1 Set value (SV) monitor' (Un\G406)
(3) "Setting change rate limiter" of "Limiter setting" in "Application Setting"
■Upper limit deviation alert
When the deviation (E) is equal to or greater than the alert set value, the system issues a deviation alert.
When the alert set value is positive
Temperature process value (PV)
*1
Set value (SV)
Deviation (E) (=Temperature process value (PV) - Set value (SV)
Alert set value
0
Alert status
*1 Depending on the alert mode setting, this value becomes the set value or the monitored value. The setting range of the alert set value is
(-(Full scale of the input range)) to the full scale of the input range. (Page 55 Setting the set value (SV) and the setting change rate
limiter)
(1)
(3)
60 Second
Time
Time
Non-alert status Alert status
(2)
Time
When the alert set value is negative
Temperature process value (PV)
*1
Set value (SV)
*1
) Deviation (E) (=Temperature process value (PV) - Set value (SV)
0
Alert set value
Alert status
Time
Time
Non-alert status Alert status
4 FUNCTION
4.29 Alert Function
4
*1
)
55