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13-8-623 Page 31
Message Action
Needed
HIGH RESVR
PRESS
Pressure in excess of the programmed high pressure limit has been detected. This
shutdown will occur if a loss of pneumatic controls occurs. Check the inlet valve,
all control piping, solenoid valves, and all other control devices to find the cause for
the inlet valve not closing. Other possible causes are loose connections to the
transducer, electrical noise and transients, or improper setting of the high pressure
limit.
HIGH RESRVR
TEMP
This indicates that the controller has detected temperature in excess of the
programmed high temperature limit at the air / oil separator. The most common
cause for this is inadequate package cooling. Ensure proper air flow for aircooled
units, or adequate cooling water for water cooled units. Check separator element,
replace non-standard separators with recommended separator. Monitor the
temperature carefully during restarts after servicing.
HIGH RESRVR
TEMR
This indicates that the controller has detected a rapid temperature rise in the air /
oil separator. Use only recommended separators; replace non-standard
separators. This may also be caused by a loose connection at connector 6 of the
controller. Monitor the temperature carefully during restarts after servicing.
HIGH VIBRATION 120 volts has been removed from terminal 6 of the terminal strip. This is normally
shipped jumpered directly to terminal 9, but the jumper may be removed to add a
field installed shutdown switch. Reset the external switch. (V4.xx only)
LOW SUMP
PRESS
The controller has attempted to start and load the compressor, but pressure is not
building up in the oil reservoir. This may indicate either a failure of the motor to
turn the compressor, or a failure of the inlet valve to open. If the latter, check also
the wiring and piping to the magnetic unloader; this is turned on to load up the
compressor.
LV RELAY
120 volts has been removed from terminal 6 of the terminal strip. This is normally
shipped jumpered directly to terminal 9, but the jumper may be removed to add a
field installed shutdown switch. Reset the external switch. (V4.xx only)
MAIN
OVERLOAD
The overload relay for the main compressor drive motor, located within the
electrical control box, has tripped. This indicates high motor shaft load, low
voltage, or excessive imbalance in the incoming power (such as a blown fuse).
Disconnect and lock out power, open the box, and press the reset button - it will
click when reset. Measure motor amps, and take corrective actions to get all
currents within the motor nameplate rating. Check that the programmed Load
Pressure is at or below the compressor nameplate rating. If the overload relay has
not tripped, check for the cause that 120 volts was removed from connector 4 - 3 of
the controller.
MAIN STARTER
The controller has attempted to start the compressor, but did not receive a return
signal from the starter's auxiliary contact. If the starter does not pick up when
attempting to start, check that connector 5 of the controller is plugged in firmly, and
check the starter coil. If the starter does pick up, but this message appears, check
that the auxiliary contact block is properly installed on the starter and wired to
connector 4, terminal 4.
MAIN STRT
CONTCT
The controller has attempted to turn off the compressor, but is still receiving a
return signal from the starter's auxiliary contact. Check that the starter operates
freely and that the contact block is properly installed on the starter.
Содержание AUTO SENTRY RS2000
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Страница 22: ...13 8 623 Page 18 WIRING DIAGRAM 300EFC546 A Ref Drawing Pag 2 of 2...
Страница 30: ...13 8 623 Page 26 FIGURE 4 2 TYPICAL WIRING DIAGRAM V6 xx 303EFC546 A Ref Drawing Page 1 of 2...
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