Fail-Safe Fault Alarm; Flowrate; Pump Control - Siemens SITRANS LUT400 Series Operating Instructions Manual

Fail-safe Fault Alarm

Activates an alarm when a fault that has caused a fail-safe condition is present.
Example: Setting a Fail-safe Fault Alarm
To assign a fail-safe fault alarm to Relay 3 do the following:
1. Enable the Fail-safe Fault Alarm (set
2.8.8.2. Assigned Relay
2. Set
2.8.8.3. Alarm State
Use

Flowrate

Flowrate alarms are available on LUT440 (OCM) model only. They can activate an alarm if
the OCM flowrate is above or below a given setpoint.
Example: Setting a High Flowrate Alarm
To assign Relay 3 to a high flowrate alarm that activates when the flowrate rises above
10 l/s:
1. Enable the High Flowrate Alarm (set
2.8.9.2. High Flowrate Value ON
2. Set
2.8.9.3. High Flowrate Value OFF
3. Set
2.8.9.4. Assigned Relay
4. Set
Example: Setting a Low Flowrate Alarm
To assign Relay 3 to a low level alarm that activates when the flowrate falls below 2 l/s:
1. Enable the Low Flowrate Alarm (set
2.8. 1 0.2. Low Flowrate Value ON
2. Set
2.8. 1 0.3. Low Flowrate Value OFF
3. Set
2.8. 1 0.4. Assigned Relay
4. Set

Pump Control

The SITRANS LUT400 has the pump control functionality to solve nearly any water /
wastewater application.
To set up pump control for simple applications, see
Communications manual
1.
Communications for SITRANS LUT400 (HART) Manual (7ML19985NE01)
A5E33329501
to Relay 3.
to view the current state of the Fail-safe Alarm.
to Relay 3
to Relay 3
1
.
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
2.8.8. 1 . Enable
= Enabled)
2.8.9.1. Enable
= Enabled).
= 10
= 8
2.8.10.1. Enable
= Enabled)
= 2
= 4
Pump Control Wizard
in LUT400
Page 79