Sullair SUPERVISOR CONTROLLER Instruction Manual

Section 5
SEQUENCING TIMERS FOR
EFFICIENT OPERATION
24
Machine Status
1 Trim
2 Stopped (Next machine in sequence)
3 Stopped
If the system pressure drops below the Sequence Load pressure (102) but is above the
Lowest Pressure (70), the next machine in sequence (2) will start and trim, and the
previously trimming machine (1) will go to full load after the Delay Start timer expires. If
the pressure is at 85 then the machine will start in about 1 minute as noted above.
Machine Status
1 Full Load
2 Trim
3 Stopped (Next machine in sequence)
If the system pressure stays below the Sequence Load pressure then the next machine
in sequence (3) will start after the Delay Start timer expires. If the pressure is at 85 then
the machine will start in about 1 minute as noted above.
Machine Status
1 Full Load
2 Full Load
5.3 SEQUENCING TIMERS SUMMARY
Table 5.1 provides a summary of the sequencing timer operation described in the
preceding examples.
Table 5.1 Sequencing Timer Example Summary
EVENT PRESSURE SEQUENCE TIMER RESULT
Unload pressure 110 All machines unload above this pressure
regardless of Recovery timer
Recovery timer
active
108-110 Trim machine will unload after Recovery timer
expires
Sequencing unload
pressure
108 Trim machine unloads above this pressure,
Recovery timer starts
Sequencing load
pressure
102 Next machine in sequence loads below this
pressure, Recovery timer starts
Recovery timer
active
100-102 Next machine in sequence loads after Recovery
timer expires
Load pressure 100 All machines load below this pressure, Start Delay
timer starts
Start Delay Timer
active
70-99 Next machine in sequence starts after Start Delay
timer expires
Lowest Pressure 70 Next machine in sequence starts immediately
regardless of Start Delay timer

Sullair SUPERVISOR CONTROLLER Specifications

General

Brand	Sullair
Model	SUPERVISOR CONTROLLER
Category	Controller
Language	English