Purpose Of Controls; Supervisor Ii Output Relays; Maintenance Introduction - Sullair LS-20T Operator's Manual

POWER FAILURE RESTART
If the restart timer (RST TIME parameter) is dis-
abled the compressor will not try to start after a
power up. If this time is set to a value the machine
will go into standby after power up. When the line
pressure drops below the load setpoint, the restart
timer will start timing. When the timer expires the
machine will start.
SEQUENCING MODES
The following is a brief description of sequencing
modes, for details see the Supervisor II Sequenc-
ing & Protocol Manual (P/N 02250057---696).
S DISABLED --- Responds to status and
parameter change messages via the
RS485 network but will not respond to
start, stop, load or unload messages.
S REMOTE --- Responds to status and pa-

6.7 PURPOSE OF CONTROLS

SWITCH
EMERGENCY STOP SWITCH

6.8 SUPERVISOR II OUTPUT RELAYS

RELAY
RUN RELAY (K1)
*---DELTA (K2)
UNLOAD/LOAD (K3)
COMMON FAULT (K4)
DRAIN VALVE (K5)
FULL LOAD/MODULATE (K6)
NOTE: All output relays will handle 8 amperes at 120/240 VAC.

6.9 MAINTENANCE INTRODUCTION

As you proceed in reading this section, it will be
easy to see that Maintenance Program for the air
compressor is quite minimal. The Supervisor moni-
tors the status of the air filter, fluid filter, and separa-
tor elements. When maintenance to these devices
is required, the Supervisor will display the appropri-
ate maintenance message and flash the location
LED on the graphics map as a visual reminder.
SUPERVISOR II DESCRIPTION
rameter change messages but will not re-
spond to start, stop, load or unload mes-
sages. The remote inputs and outputs are
enabled (start/stop, load/unload, master/
local).
S SLAVE --- Will respond to all messages,
but will not start or load unless comman-
ded to do so by a message. This mode is
used to control the machine from a master
computer.
S HOURS --- Sends status message about
once a second, starts, loads and unloads
machines based on sequencing hours.
S COM ID # --- Sends status message
about once a second, starts, loads and un-
loads machines based on machine Com
ID#.
OPERATION
Pushing in this switch, found adjacent to the Supervi-
sor, cuts all AC outputs from the latter and de---ener-
gizes the starter. A fault message (E STOP) is dis-
played by the Supervisor until the button is pulled out
and the "O" pad is depressed.
OPERATION
Contact closure energizes the compressor starter.
A timed contact used to provide wye---delta transition
time.
Controls ON LOAD/OFF LOAD operation of the load
control solenoid valve.
May be used to provide remote indication of any pre---
alarm, maintenance or fault shutdown condition.
Deluxe only --- controls a solenoid valve to provide au-
tomatic condensate removal.
Deluxe only --- used with sequencing feature.
DO NOT remove caps, plugs, and/or other com-
ponents when compressor is running or pressur-
ized.
Stop compressor and relieve all internal pres-
sure before doing so.
Section 6
WA R N I N G
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