Siemens sitrans LU01 - Manual (Page 48)

Page 42 SITRANS LU01 – INSTRUCTION MANUAL 7ML19985BE02
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Custom Relays (P111 to P113)
P111 Relay Control Function
Sets the control algorithm used to trip the relay.
When accessed, the Parameter Type display changes to the Relay symbol and the Index
display changes to the Relay Number (corresponding to the SITRANS LU01 terminals).
Use zero 0 (preset) to disable control of the indexed relay.
To enter a relay designation:
1. Press to display the Auxiliary Function symbol,
2. Press or to scroll access the desired relay designation and...
3. Press .
Refer to Point Alarm and Status section in SmartLinx instruction manuals for more
information.
Primary Index Relay
Values See chart on next page
Altered by • P100 Preset Applications
Note: All relay ON/OFF points must be referenced from Empty (P006), regardless
of Operation Mode selection (POO1).
Function Designation Operation
Level LL, L, H, or HH Similar to Standard Alarms but with Relay ON/OFF Setpoints
In Bounds b1 or b2 1
1. The relay designation is not displayed but is included in the data message.
Alarms when level is between the Relay ON/OFF Setpoints
Out of Bounds b1 or b2 1
Alarms when level is not between the Relay ON/OFF Set-
points
Rate r1 or r2 1 Level rate of change alarm with Relay ON/OFF Setpoints
Temperature Not applicable Alarm is activated by independent Relay ON/OFF Setpoints
LOE Not applicable Relay de-energizes in the event of Failsafe timer (P700) expiry
Cable fault Not applicable
Relay de-energizes under transducer short or opened condi-
tion
Pump Not applicable With independent Relay ON/OFF Setpoints
Note: When the Relay Function is altered, affected Alarm Parameters (P101 to
P104) display "ch" (changed) when accessed. Use the Relay ON/OFF Setpoints
(P112/P113) instead.