Siemens SITRANS LUT400, Operating Instructions Manual

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Page 176 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
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This value must be greater than the
2.11.1.3.Relay Duration
or the relay will
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.
This value must be less than the
2.11.1.2.Interval
or the relay will never
reset.
2.11.1.4. Assigned Relay
Determines the relay assigned to elapsed time control.
2.11.1.5. Relay Logic
Use to change the behaviour of the relay assigned to elapsed time control.
Relay contact operation is NORMALLY CLOSED for alarms and NORMALLY
OPEN for controls.
By default a control contact is Normally Open. For
2.11.1.3.Relay Duration
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.
2.11.2.2. Activation Time
Sets time of day, using a 24-hour clock, at which the relay should activate.
For instructions on how to edit parameters with a string editor, see
Using
the string editor:
on page 188.
Values
Range: 1 to 9999
Default: 10
Options
* RELAY 1
RELAY 2
RELAY 3
Options
*
NORMALLY OPEN
NORMALLY CLOSED
Options
ENABLED
* DISABLED
Values
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