Siemens SITRANS LUT400 - External Totalizer (2.11.3)

SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
215
Relay Logic (2.11.2.5.)
Use to change the behaviour of the relay assigned to time of day control.
Options
*
NORMALLY OPEN
NORMALLY CLOSED
Relay contact operation is NORMALLY CLOSED for alarms and NORMALLY OPEN for
controls.
By default a control contact is Normally Open. For Relay Duration (2.11.2.3.) (Page 214) the
corresponding relay coil is energized. By setting this parameter to
Normally Closed, the relay
coil will be de-energized for the duration phase.
9.2.11.3 External Totalizer (2.11.3)
Available only on LUT430 (Pump and Flow model), and LUT440 (OCM model).
This function tracks the volume of material that passes through a system. The external
totalizer controls a relay to signal an external totalizing device. The relay toggles on and off
at a rate set by the parameters below. (For details on relay behaviour under fail-safe
conditions, see Miscellaneous relays (Page 88).)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Enable (2.11.3.1.)
Enables/disables external totalizer relay control.
Options
ENABLED
*
DISABLED
Multiplier (2.11.3.2.)
Use to scale the external totalizer up or down as required.
Values
Range: 0.0000001 to 99999
.000
Default: 1.000
This allows the totalizer relay to click for different values of volume.
Example:
To click once every 4310 units, set 2.11.3.2. Multiplier to 4310.