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13–10–613 SP Page 21
ervoir / separator temperature is also monitored, and
will provide high temp shutdowns. The location of the
temperature fault will be displayed. Thermistor probes
are also checked for open or shorted circuits, and the
display will indicate the location of the defective probe.
Machine damage will occur if com-
pressor is repeatedly restarted after
high temperature stops operation.
Find and correct the malfunction be-
fore resuming operation.
Separator Differential Pressure – The pressure
drop across the separator is continually monitored by
the “AUTO SENTRY
–ES+”. The unit will be shut
down at a differential pressure of approximately 15
psid.
The pressure drop can be monitored at any time by
pressing the separator key on the diagram twice. This
should be checked while the compressor is delivering
at full capacity. A service advisory comes on to recom-
mend maintenance prior to this shutdown.
High Pressure – The “AUTO SENTRY
–ES+” will
first attempt to unload and blow down the unit if exces-
sive pressures are detected in the reservoir or the plant
system. If unsuccessful, a shutdown will occur. Shut
down will also occur if a defective transducer is de-
tected, or improper zero adjustments are detected.
The display will indicate the location of the high sensed
pressure or transducer (xducer) error. Check that all
adjustments have been properly made, and all connec-
tions are secure.
Low Oil Pressure – The “AUTO SENTRY
–ES+” will
shutdown the unit if inadequate oil pressure is detected
after loading the compressor. If this occurs, check the
wiring and piping to the solenoid valves.
Emergency Stop – Press the emergency stop button
to shut down the unit and the controller. To restart, pull
the button out to its normal position and reset the con-
troller. This should be used for emergency purposes
only – use the keypad “STOP/RESET” for normal con-
trolled stopping.
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 press.
Amp Sensor Failure – The optional current sensor
used with the ES+ controller is used for operational tun-
ing and advisory purposes only. The only shutdown
functions are those when the controller senses improp-
er operation.
Connection Failure – The ES+ controller checks input
connectors and will shutdown if they become un-
plugged.
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 actions.
PROGRAMMING AND SETUP INSTRUCTIONS
FOR THE AUTO SENTRY
–ES CONTROLLER
Programming and setup is accomplished with the
PROGRAM keys. See FIGURE 4–1, page 19. In all
steps, the [ENTER] key enters the displayed value into
memory and advances to the next programming func-
tion. The plus [+] and minus [–] keys will increase and
decrease displayed numeric values, or step through
menu selections. During numeric adjustments, the left
[<] and right [>] arrow keys, move the cursor (flashing
digit) to the position desired. Use the [+] and [–] keys
to change the number at the cursor. At any point in the
programming and setup routine, the [STOP–RESET]
key can be pressed to exit the adjustment mode without
altering the adjustment. In all steps of the programming
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 may be altered or stored.
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 performed from the
“SHUTDOWN” state. After adjustments are com-
pleted, the ES+ controller returns to the this state
until the cause is repaired and the controller is
manually reset.
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 22. 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.
Summary of Contents for ELECTRA-SAVER EAYQ E
Page 15: ...13 10 613 SP Page 6 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077 ...
Page 16: ...13 10 613 SP Page 7 DECALS 216EAQ077 217EAQ077 222EAQ077 221EAQ077 208EAQ077 ...
Page 31: ...13 10 613 SP Page 22 FIGURE 4 2 FLOW CHART FOR SET UP PROGRAMMING ...
Page 48: ...13 10 613 SP Page 39 FIGURE 4 13 WIRING DIAGRAM 202EAY546 Ref Drawing ...
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