13–10–612 Page 28
through eight This will be factory set at ”1”. Each
”AUTO SENTRY–ES” in a sequenced system
must have a unique number here. The sequence
mode will not function if two or more compressors
have the same UNIT NUMBER. Most efficient ma-
chine–to–machine communications will occur
when the lowest possible numbers are used. Ex-
ample: 1, 2, and 3 for a three compressor installa-
tion.
5.
In the top line, TRANSFER INTERVAL is dis-
played. The bottom line will indicate a number of
hours in the range of 1 to 5000. It is factory set at
24. This is the number of hours that this machine
will stay in the role of ”master” or ”lead” compres-
sor. Normally it is desirable to set this value the
same on all sequenced units to equalize running
hours.
6.
In the top line, LAG START DELAY is displayed.
The bottom line will indicate a number in the range
of 15 to 600 seconds. It is factory set at 30. This
is the length of time this machine will wait before
starting when the pressure drops below the reset
point. Again, this is normally set to the same value
for all sequenced units. Its setting will depend on
the amount of air storage volume in the system.
7.
In the top line, BLOWDOWN TIME is displayed.
The bottom line will indicate a time between 5 and
20 minutes. It is factory set at 10 minutes. This is
the minimum time interval between blowdowns.
Limiting the blowdown frequency has been shown
to prevent oil foaming and minimize wasteful
dumping of compressed air when loading is likely
to occur in a short time.
8.
In the top line, AUTO TIME is displayed. The bot-
tom line will indicate a time between 5 and 30 min-
utes. It too is factory set at 10 minutes. Its function
is to prevent too frequent motor starting, and to al-
low the motor a ’cool–down’ period before stop-
ping.
9.
In the top line, START TIME is displayed. The bot-
tom line will indicate a time between 3 and 10 se-
conds. This is the time that the wye–delta starter
spends in the ’start’ mode. It should be set to
transfer the starter to the ’run’ mode as soon as
the motor reaches its maximum attainable speed
in the ’start’ mode. If the set switch is off, the con-
trol returns to the ”READY” state and may then be
restarted.
This concludes operator accessible
adjustments. The following are con-
sidered ’service adjustments’. The
”SET” switch on the circuit board
must be turned ’on’ to proceed to the
next set of programmable adjust-
ments. The ”SET” switch is located
beneath the power transformer
mounting plate on the left edge of the
main circuit board.
10. In the top line, HY SYS PRES LIM is displayed.
This should be set 20 – 25 PSI above nameplate
pressure (equal to the relief valve setting). If this
pressure is approached, the control will be forced
to a blowdown and shutdown condition.
11. In the top line, SET PRESSURE is displayed. The
bottom line will indicate a pressure value in the
range of 50 to 180 PSI. It is to be set at the name-
plate rating of the compressor for normal opera-
tion. Under NO circumstances, is this adjustment
to be set in excess of the compressor nameplate
pressure.
12. In the top line, RESET PRESSURE is displayed.
The bottom line will indicate a pressure value in
the range of 45 to 175 PSI. This setting deter-
mines the point at which machine startup occurs
in AUTO and SEQUENCE modes and when the
compressor will load up from the blown down
condition. Note that RESET PRESSURE cannot
be set within 5 PSI of the SET PRESSURE. It is
necessary that all machines to be sequenced
have the same SET and RESET PRESSURE set-
points.
13. The top line displays REMOTE STOP. Select ei-
ther IMMEDIATE or TIMED STOP as the desired
response to the remote input.
14. In the top line, FILTER CHNG INT is displayed.
The bottom line will indicate a time interval of 1000
hours. This may be adjusted lower (down to 500
hours) if severe operating conditions are antici-
pated. After the machine has run for the pro-
grammed setting, an advisory will be displayed re-
questing an oil filter change.
15. In the top line, OIL CHNG INTERVAL is dis-
played. The bottom line will indicate a time interval
Summary of Contents for ELECTRA-SAVER EAU PD - 200 HP
Page 13: ...13 10 612 Page 3 FIGURE 1 4 STARTER BOX FIGURE 1 5 PACKAGE CONTROLLER AND STARTERS...
Page 16: ...13 10 612 Page 6 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Page 17: ...13 10 612 Page 7 DECALS 216EAQ077 217EAQ077 222EAQ077 221EAQ077 208EAQ077...
Page 40: ...13 10 612 Page 30 FIGURE 4 8 CONTROL SCHEMATIC COMPRESSOR AT FULL LOAD 214ECM797 Ref Drawing...
Page 42: ...13 10 612 Page 32 FIGURE 4 10 WIRING DIAGRAM 212EAP546 Ref Drawing...
Page 43: ...13 10 612 Page 33 FIGURE 4 11 AUTO SENTRY ES CONTROLLER DISPLAY...
Page 45: ...13 10 612 Page 35 FIGURE 5 1 FLOW DIAGRAM AIR OIL SYSTEM 215EAU797 Ref Drawing...
Page 65: ......