Honeywell UDC2500 manual Deviation from LSP 2 Note, Tc W, Thermocouple Warning Note, Tc F

						Configuration
Function Prompt		Selection or Range of Setting				Parameter
Lower Display			Upper Display			Definition
English	Numeric		English	Numeric
	Code			Code
		DE 2		16	DEVIATION FROM LSP 2 (NOTE 3)
		TC W		17	THERMOCOUPLE WARNING (NOTE 5)
		TC F		18	THERMOCOUPLE FAILING (NOTE 6)
					ATTENTION
					NOTE 1. When the controller is configured
					for Three Position Step Control, alarms set
					for Output will not function.
					NOTE 2. Alarm 1 is not available if the Timer
					is enabled because Alarm 1 is dedicated to
					Timer output.
					NOTE 3. This Deviation Alarm is based upon
					deviation from the 2nd Local Setpoint or
					Remote SP regardless of whichever SP is
					active.
					NOTE 4. Loop Break monitors the control
					loop to determine if it is working. When
					enabled, the control output is checked
					against the minimum and maximum output
					limit settings. When the output reaches one
					of these limits, a timer begins. If the timer
					expires and the output has not caused the
					PV to move by a pre-determined amount,
					then the alarm activates, thus signalling that
					the loop is broken. The loop break timer
					value must be configured by the operator as
					the AxSx VAL entry. This value is in
					seconds with a range of 0 to 3600 seconds.
					A setting of 0 is equivalent to an
					instantaneous loop break when the output
					reaches one of its limit values.
					The amount of PV Movement required is
					determined by the “UNITS” setting in the
					Display Setup Group. For the Degrees F
					configuration, the PV must move by 3° in the
					desired direction in the time allowed. For the
					Degrees C configuration, the PV must move
					by 2° in the desired direction in the time
					allowed. For the “NONE” selection, the PV
					must move 1% of the PV range in the time
					allowed.
					Loop Break alarms do not have a
					HIGH/LOW State configuration, they are
					always assumed to be a HIGH state alarm.

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