13–10–613 SP Page 20
Communication between controllers is achieved by in-
terconnection of a communications cable to circuit
board connectors. A “unit number” must be assigned
to each unit in this mode, but the display will indicate the
unit’s actual operating ranking.
AUTO–SENTRY
R
–ES+ CONTROL DISPLAY
The display above the keypad is used to provide oper-
ating information to the user. If a shutdown has oc-
curred, the display will indicate the cause.
During normal operation, the display will show the sys-
tem (plant) pressure, compressor discharge tempera-
ture, total running hours, and operation mode. Alter-
nate displays are available by pressing the keys on the
diagram or the [<][>] keypad keys, and will be identified
on the display. These include:
1.
Air/oil reservoir pressure
2.
Separator differential pressure
3.
Air/oil reservoir & separator temperature
4.
System discharge pressure
5.
Air end discharge temperature
6.
Remaining blowdown time
7.
Remaining auto time
8.
Total running hourmeter
9.
Loaded operation hourmeter
Remaining blowdown and auto times are only available
in Low Demand, Automatic, and Sequence modes, as
appropriate.
Service information may also be displayed while the
compressor is running. Press the [+][–] keys to display
the following:
1.
Main motor current (optional)
2.
Est. hours till next recommended oil change
3.
Hours till next recommended oil filter change
4.
List of any active advisory messages
If no keys are pressed for 5 seconds, the display will re-
vert to its normal mode.
The display is also used as a service reminder for nor-
mal maintenance items. If service is recommended,
the yellow advisory light will be on, and a message will
alternate with the normal lower line display. Yellow
lights on the diagram also indicate the area needing
service. These messages are intended to advise of
conditions which may lead to a shutdown.
If a protective shutdown occurs, the red shutdown light
will be on and the top line of the display will indicate
“SHUTDOWN.” The lower line will indicate the cause
of the shutdown. A red indicator on the diagram indi-
cates the area needing service.
SERVICE ADVISORIES
The ES+ controller turns on an advisory when it detects
operation which needs service attention, but does not
warrant shutting down the compressor. Some of these
are normal maintenance procedures, and are intended
to serve as a reminder to perform routine service. Oth-
ers are conditions which can reduce the maximum
compressor performance. It will remain in effect until
reset. Check the display during routine inspections,
and perform maintenance as suggested. Refer to the
troubleshooting section for detailed information about
each advisory.
Temperature advisories may be cleared while the unit
is running by simply pressing the ENTER key. To reset
the service advisories, press the STOP/RESET key to
stop operation of the compressor. After it has stopped,
disconnect power and service as required. After serv-
icing, restore power and reset the board as indicated in
the programming / maintenance section below.
PROTECTIVE SHUTDOWNS
The “AUTO SENTRY
R
–ES+” will shut down the unit
following any fault detected in the following devices.
Long–term problems will have a brief blowdown period
before fully shutting down. Following a shutdown, a
message will be displayed, with the top line indicating
“SHUTDOWN” and the lower line indicating the cause.
The shutdown light will be steadily lit if the cause still ex-
ists, or will flash if the cause has been cleared. Refer
to the troubleshooting section for detailed information
about each shutdown. To resume operation, the cause
of the shutdown must be corrected and the controller
reset by pressing the “STOP/RESET” key.
Motor Protective Devices – Overload heaters are
furnished for the starter in the voltage range specified.
There are three (3) overloads in the starter of proper
size for the starter and its enclosure. Note that motor
nameplate current must be multiplied by 0.577 for wye–
delta starters. The display will indicate that an overload
relay has tripped. The overload relay is reset by press-
ing the button on the relay itself, then the controller may
be reset. Motor current (amps) and voltage must be
measured in the affected motor wiring to locate the
cause for high current. Proper starter coil and contact
action is also monitored and errors in operation will
cause a shutdown with the cause displayed as a starter
or starter contact error.
High Temperature – The compressor is protected
from high discharge temperature by a thermistor probe
located in the compressor discharge elbow. The
“AUTO SENTRY–ES+” will shut the compressor down
if temperature exceeds 225
_
F (or lower per user ad-
justment) or if rapid temperature rise is detected. Res-
Содержание ELECTRA-SAVER EAYQ E
Страница 15: ...13 10 613 SP Page 6 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077 ...
Страница 16: ...13 10 613 SP Page 7 DECALS 216EAQ077 217EAQ077 222EAQ077 221EAQ077 208EAQ077 ...
Страница 31: ...13 10 613 SP Page 22 FIGURE 4 2 FLOW CHART FOR SET UP PROGRAMMING ...
Страница 45: ...13 10 613 SP Page 36 FIGURE 4 10 CONTROL SCHEMATIC COMPRESSOR AT FULL LOAD 204EAY797 Ref Drawing ...
Страница 48: ...13 10 613 SP Page 39 FIGURE 4 13 WIRING DIAGRAM 202EAY546 Ref Drawing ...
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