Vertiv™ | Liebert® SRC-G | User Manual 63
Controller Operation Instructions
5.11. Sequencing Setting
In the Main Menu select ‘Sequencing Setting’ option to access sequencing setting details as shown from
Figure 5-31.
Figure 5-31 Sequencing Setting Screen
Sequencing/TeamWork option
Liebert® SRC units have teamwork function, which allow multiple units (maximum 8) to connect in a network.
This feature is applicable in following operation modes.
• Scheduling
In this mode, some of the units in network can be set o as a standby and rest of the units regulate temperature
and humidity of the room. Once rotation time is over, next set of units start operation, and previously operating
units switch to rest.
• Contingency
In this mode, if there is an alarm in the operating unit then standby unit takes over automatically and faulty unit is
set out of operation for maintenance. Once the faulty is removed, it can set back to operation based on schedule.
• Cascading
In this mode, if rise in the steep temperature is detect, all units start operating together, to control tem-
perature as per the setpoints.
Sequencing mode
All units in the network should be connected as given in Chapter 3, Connection Section 3.4.1.
To establish the network, all units are designated with independent Unit ID starting from 0 to 7. Unit with ID ‘0’
is assigned as a master and rest of the units are slave. In case of fault with master unit, next lowest ID unit is
promoted as a master. Once the unit is out of fault it can again resume as a master.
Total Mach
This option represents total units in the network.
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