Siemens SITRANS LUT400 Operating Instructions Manual page 184

This value must be greater than the
never reset. The first activation occurs when the device is powered on.
2.11.1.3. Relay Duration
The time in seconds from one change of state in the relay to the next.
Values
This value must be less than the
reset.
2.11.1.4. Assigned Relay
Determines the relay assigned to elapsed time control.
Options
2.11.1.5. Relay Logic
Use to change the behaviour of the relay assigned to elapsed time control.
Options
Relay contact operation is NORMALLY CLOSED for alarms and NORMALLY
OPEN for controls.
By default a control contact is Normally Open. For
the corresponding relay coil is energized. By setting this parameter to
Normally Closed, the relay coil will be de-energized for the duration phase.
2.11.2. Time of Day Relay
This function drives a relay based on time of day. The relay toggles on and off
at a rate set by the parameters below. This relay is not affected by LOE, faults,
alarms, or any other condition within the device.
2.11.2.1. Enable
Enables/disables time of day relay control.
Options
2.11.2.2. Activation Time
Sets time of day, using a 24-hour clock, at which the relay should activate.
Values
For instructions on how to edit parameters with a string editor, see
the string editor:
Page 176 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
2.11. 1 .3.Relay Duration
Range: 1 to 9999
Default: 10
2.11. 1 .2.Interval
* RELAY 1
RELAY 2
RELAY 3
*
NORMALLY OPEN
NORMALLY CLOSED
ENABLED
* DISABLED
Range: 00:00 to 23:59
Format: HH:MM (24 hour format, e.g. for 5:30 pm, set
parameter to 17:30)
Default: 00:00
on page 188.
or the relay will
or the relay will never
2.11.1.3.Relay Duration
Using
A5E33329501