Sullair SUPERVISOR CONTROLLER, User Manual

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SUPERVISOR CONTROLLER™ USER MANUAL SECTION 4
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4.2 MACHINE BEHAVIOR AFTER
A POWER OUTAGE
Condition: Machine was in a running or ready
condition when power was lost.
Table 4-5 describes
how a machine behaves after a power up under
various conditions if the Restart timer is greater than
0. If the Restart timer is 0 the machine powers up in
the Manual Stop state.
The Seq. Mode column pertains to the Sequencing
mode parameter. It can be Disabled, set to Remote
Start/Stop or to other sequencing modes (Seq). The
Local/Remote column refers to the Local/Remote
Button on the display panel. The Remote Start/Stop
column pertains to the Remote Start/Stop input. The
Run Mode column the machine run mode (Auto
button on the display panel). Note that this table only
applies if the Restart Timer has a value other than
zero. If the Restart Timer is zero then the machine
always powers up in Manual Stop.
4.3 REMOTE STOP/START
INPUT
Table 4-6 describes how a machine reacts to the
Remote Start/Stop input. See previous table for
column descriptions.
4.4 BROWN OUT INPUT
Normally not wired by factory, this feature is used to
enable the compressor to properly recover from very
short-cycle power loss or voltage dips for those
installations that are susceptible to this kind of power
interruption. The controller alone is not as sensitive
to these interruptions as is the switchgear, and must
be told that the loss has occurred. A normally closed
starter contact wired to the Brownout input (D8)
forces the controller into a standby state if the starter
drops out. The controller will then re-engage the
starter after normal start permissives are satisfied.
NOTE
the Sequencing Mode parameter must be
set to Remote to enable Remote Start/
Stop input.