Siemens LU01 Independent Relay Setpoints, Values For P111 Control Type Relay Control

To reset the Relay Function to use Standard Alarms, enter the desired Relay Set Up (P100).

Values For P111

Control	Type	#1	Relay Control
	Off	0	Relay set off, no action (preset)
	Level	1*	Based on level setpoints ON and OFF
	In Bounds	2	When level enters the range between ON and OFF
			setpoints
General	Out of Bounds	3	When level exits the range between ON and OFF set-
			points
	Rate of Change	4	Based on rate setpoints ON and OFF
	Temperature	5	Based on temperature setpoints ON and OFF
	Loss of Echo (LOE)	6	When echo is lost
	Cable Fault	7	When the circuit to a transducer is opened
Pump	Fixed Duty Assist	50	At fixed ON and OFF setpoints and allows multiple
			pumps to run or for rake control

1.When reading and setting this parameter through Modbus or SmartLinx communications the parameter values are mapped to different numbers. See the relevant SmartLinx manual for Modbus information.

Independent Relay Setpoints

Relay ON and OFF Setpoint values set the critical points (based on the Relay Function) where, in RUN mode:

•Relay status indicators are switched ON and OFF

•Alarm Indicators (if programmed) are switched ON or OFF

•Relays are energized and de-energized

For most Relay Functions, setpoint values represent material levels, entered in Units (P005) or percent of Span (P007) as referenced to Empty (P006). Temperature alarm values are entered in degrees Celsius (°C).

Rate alarms are entered in Units / minute or percent of Span per minute. A positive value is entered for a filling rate alarm; negative for emptying.

Parameters

7ML19985BE02 SITRANS LU01 – INSTRUCTION MANUAL Page 43