13–11–602 Page 24
Power Failure – Following power interruptions, the
controller will remain in a shutdown state (unless pro-
grammed for auto restart).
External Device – This input is provided for user– or
dealer– installed devices needed by specific applica-
tions. Other shutdown field selectable messages in-
clude: high vibration, phase relay, low voltage relay,
and water pressure.
Other Shutdowns – The controller runs continuous
diagnostic checks of its own operation and the sensors
to which it is connected. Refer to the service section
for a complete listing of shutdowns and remedial ac-
tions.
PROGRAMMING AND SETUP FOR THE AUTO
SENTRY
–ES CONTROLLER FOR EWD
Programming and setup is accomplished with the
PROGRAM keys. See FIGURE 4–1, page 22. In all
steps, the [ENTER] key will cause the controller to ac-
cept the displayed value into memory and advance to
the next programming function. The plus [+] and minus
[–] keys will increase and decrease displayed numeric
values, or step through menu selections. During nu-
meric adjustments, the right [
→
] and left [
←
] arrow
keys, move the cursor (flashing digit) to the position de-
sired. The number at the cursor will be the number that
is changed by the [+] and [–] keys. At any point in the
programming and setup routine, the [STOP–RESET]
key can be pressed to exit and return to the ready mode
without altering the adjustment. In all steps of the pro-
gramming routine, the top line of the display will give a
description of the parameter to be programmed, while
the bottom line shows the variable that is capable of be-
ing altered by programming.
The following is a step by step guide to programming
the “AUTO SENTRY–ES”. Remember, between each
step, it is necessary to press the “ENTER” key to store
the new value and advance to the next step.
Main Adjustments Menu
1.
The compressor must be stopped prior to making
any adjustments. If the unit is running, press the
[STOP/RESET] key to place the control in the
“READY” state. Adjustments can also be per-
formed while in the “SHUTDOWN” state.
2.
Press the [ENTER] key to begin programming.
This enters the adjustments menu. The adjust-
ments are broken into five groups as shown in
FIGURE 4–2, page 25. To select a group, press
[+] or [–] until the desired group is shown on the
bottom line of the display. Press [ENTER] to pro-
ceed to the group adjustments detailed below.
Note: Configuration adjustments are normally re-
quired only at the time of assembly or after parts have
been replaced. Unit setup adjustments are normally
required only at the time of unit installation. To prevent
accidental access, these will not be available if the
“SET” switch is in the up position. The “SET” switch is
located beneath the power transformer mounting plate
on the left edge of the main circuit board.
Operation Adjustments
1.
In the top line, “DISPLAY UNITS” is indicated.
The bottom line will indicate “ENGLISH” (PSIG,
Fahrenheit) or “METRIC” (Bars, Celsius) units of
measurement. Select the desired display units
and press [ENTER] to proceed.
2.
In the top line, “START TIMER” is displayed. The
bottom line will indicate a time between 3 and 10
seconds. This is the time that the controller
spends in the unloaded ’start’ mode. If reduced–
voltage starting is used, it should be set longer
than the starter’s timer.
3.
In the top line, “SET PRESSURE” is displayed.
The bottom line will indicate a pressure value. It
is to be set at the nameplate rating of the compres-
sor for normal operation. Under no circum-
stances, is this adjustment to be set in excess of
the compressor nameplate pressure.
4.
In the top line, “RESET PRESSURE” is displayed.
The bottom line will indicate a pressure value.
This setting determines the point at which ma-
chine 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 setpoints.
5.
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.
A longer blowdown time minimizes wasteful
dumping of compressed air when loading is likely
to occur in a short time.
6.
In the top line, “AUTO TIME” is displayed. The
bottom line will indicate a time between 5 and 20
minutes. It too, is factory set at 10 minutes. Its
function is to prevent too frequent motor starting,
and to allow the motor a ‘cool–down’ period before
stopping.
7.
In the top line, “REMOTE STOP” is displayed.
The bottom line indicates either “TIMED” or “IM-
MEDIATE”. Select the desired response to the
remote input and press [ENTER] to proceed.
8.
This completes the operational adjustments. The
controller will return to the main adjustments
menu.
Summary of Contents for TWISTAIR EWDQ D
Page 14: ...13 11 602 Page 4 FIGURE 1 6 AIR WATER SCHEMATIC FIGURE 1 7 OIL SCHEMATIC...
Page 17: ...13 11 602 Page 7 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Page 18: ...13 11 602 Page 8 DECALS 216EAQ077 206EWD077 222EAQ077 221EAQ077 208EAQ077...
Page 35: ...13 11 602 Page 25 FIGURE 4 2 FLOW CHART FOR SET UP PROGRAMMING...
Page 44: ...13 11 602 Page 34 FIGURE 4 6 CONTROL TUBING SCHEMATIC 206EWD797 A Ref Drawing...
Page 48: ...13 11 602 Page 38 FIGURE 4 10 WIRING DIAGRAM FULL VOLTAGE 202EWD546 REF DRAWING...
Page 49: ...13 11 602 Page 39 FIGURE 4 11 WIRING DIAGRAM WYE DELTA 203EWD546 REF DRAWING...
Page 50: ...13 11 602 Page 40 FIGURE 4 12 AUTO SENTRY ES CONTROLLER DISPLAY...
Page 53: ...13 11 602 Page 43 FIGURE 5 2 FLOW DIAGRAM AIR COOLED 202EWD797 B Ref Drawing...
Page 54: ...13 11 602 Page 44 FIGURE 5 3 FLOW DIAGRAM WATER COOLED 203EWD797 A Ref Drawing...
Page 68: ......
