Flowline LI90 Commander - Manual (Page 48)

48 of 57 PRELIMINARY MANUAL 27 AUG 08
Commander LI90 Series Rev 1_3
o
Select either an Independent Relay #5 and #6 or Duplexing Relays #5 and #6.
Independent
Relay #5 & #6
Duplex
Relay #5 & #6
Alternate
Relay #5 and #6
o Independent Relays – Relays #5 and #6 perform the same as relays #1 through
#4. The two relays are not linked together.
o Duplex Relays – Relays #5 and #6 are linked together with two unique start
levels and a common off position. The relays will also alternate between each
LEAD start. If the level ever reaches the LAG start, the remaining relay will
activate.
o Alternating Relays – Relays #5 and #6 will switch back and forth each time the
ON level is reached. This is used to maintain a common use/life cycle for
equipment.
o
Relay settings must be in the same units used for the Empty and Full settings
1. Relay #5 ON or LEAD ON 2. Relay #5 OFF or ALL OFF
3. Relay #6 ON or LAG ON 4. Relay #6 OFF