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8.3.3 When the ALM LED turns on or flashes
(1) When turning on
(2) When flashing
Check Item Action
Is CH Alert occurrence flag (XnC to XnF) ON?
Check CH Alert definition (Un\G5 to Un\G8) and take the appropriate
corrective action. ( Page 87, Section 3.4.2 (3))
Check Item Action
Has the temperature process value (PV) exceeded the
temperature measurement range set as the input range?
Change the setting of CH Input range (Un\G32, Un\G64, Un\G96,
Un\G128) to a setting in the temperature measurement range to be used.
( Page 96, Section 3.4.2 (12))
Is there a channel where no temperature sensor is
connected?
Set the channel where no temperature sensor is connected to unused in
CH Unused channel setting (Un\G61, Un\G93, Un\G125, Un\G157).
( Page 126, Section 3.4.2 (35))
Has a loop disconnection been detected?
Check for a load disconnection, externally-operable device failure, and
sensor disconnection.