Section 5
SUPERVISOR II
20
P2 > UNLD -- --> load solenoid turned off
P2 < LOAD -- --> load solenoid turned on
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 s equencing
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 w ill not respond to
start, stop, load or unload messages.
S REMOTE --- Responds to status and pa-
rameter change messages but will not re-
spond to start, stop, load or unload mes-
sages. The remote inputs and outputs a re
enabled (start/stop, load/unload, master/
local).
S SLAVE --- Will respond to all messages,
but will not start or load unless comman-
dedtodosobyamessage.Thismodeis
used to control the machine from a master
computer.
S HOURS --- S e n d s s t a t u s m e s s a g e a b o u t
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#.
5.7 SUPERVISOR II OUTPUT RELAYS
RELAY OPERATION
RUN RELAY (K1) Contact closure energizes the compressor starter.
*---DELTA (K2) A timed contact used to provide wye---delta transition
time. Not used on DS --- 13 Series.
UNL OAD/LOAD (K3) Controls ON LOAD/OFF LOAD operaton of the load
control solenoid valve.
COMMON FAULT (K4) May be used to provide remote indication of any pre---
alarm, maintenance or fault shutdown condition.
ELECTRIC DRAIN VALVE (K5) Controls a solenoid valve to provide automatic con-
densate removal.
FULL LOAD/MODULATE (K6) Used with sequencing feature.
NOTE: All output relays will handle 8 amperes at 120/240 VAC.
Parameter Value Range Notes
Load P2 75 --- 140 psi Loa d pressure setting
( 5 . 2 --- 9 . 7 b a r )
Unload P2 85 --- 150 psi Unload pressure setting
( 5 . 9 --- 1 0 . 3 b a r )
Max P2 160 psi System s hutdown pressure setting
(11 bar)
Unload Time 10---60 Min. Time lapse to system shutdown on
AUTO mode
Ta b l e 5 --- 1
Electric Drain Interval 0---10 Min.
0 --- 1 0 S e c .Duration
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