13-8-623 Page 30
SHUTDOWN TROUBLESHOOTING GUIDE
All shutdowns are indicated on the keypad by the word "SHUTDOWN" on the top line of the display, and
one of the following messages on the lower line of the display. The red indicator in the Status area will be
steadily lit while the condition exists, and will flash after the condition has been corrected. Perform
service as indicated. Press the [STOP/RESET] key to clear the shutdown.
Message Action
Needed
CHANGE
SEPARATOR
The differential pressure across the air / oil separator has risen to over 15 psid.
Change the separator to ensure maximum compressor performance.
CHECK CN6
All inputs at connector 6 of the controller are off. The most common cause for this
is that the connector plug has been pulled out. Plug the connector back in firmly.
CHECK CN4
120 volts has been removed from ALL inputs to connector 4 of the controller. The
most common cause for this is that the connector plug has been pulled out. Plug
the connector back in firmly. This may also indicate a poor neutral (white wire)
connection to connector 4.
CONTROLLER
ERROR
The controller performs several internal diagnostic checks of its own operation.
Follow instructions on lower line, or replace if the controller indicates "REPAIR
REQUIRED".
EMERGENCY
STOP
The Emergency Stop button has been pressed. Pull it back out to its normal
position. If the button has not been pressed, check that the contact block is firmly
mounted in the right or left (not center) position of the operator. Check for loose
connections which would remove 120 volts from connector 4-1 of the controller.
EXTERNAL
DEVICE
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)
HI SYSTEM
PRESS
Pressure in excess of the programmed high pressure limit has been detected. The
most likely cause is other, higher pressure compressors on the same air system;
separate these from this compressor unit. Other possible causes are loose
connections to the transducer, electrical noise and transients, or improper setting of
the high pressure limit.
HIGH DISCH
TEMP
This indicates that the controller has detected temperature in excess of the
programmed high temperature limit at the airend discharge. 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 for proper oil level,
and fill as required. Monitor the temperature carefully during restarts after
servicing.
HIGH DISCH
TEMR
This indicates that the controller has detected a rapid temperature rise in the airend
discharge. This normally would indicate a loss of coolant injection into the airend.
Check oil level, and fill if required. Completely check all oil piping, the filter, and
flow controls for blockage or freezing. This may also be caused by a loose
connection at connector 6 of the controller. Monitor the temperature carefully
during restarts after servicing.
Summary of Contents for AUTO SENTRY RS2000
Page 11: ...13 8 623 Page 7 Figure 3 1 FLOW CHART FOR SETUP PROGRAMMING V4 xx 300EBC1255 E Ref Drawing...
Page 21: ...13 8 623 Page 17 300EFC546 A Ref Drawing Page 1 of 2 Figure 3 2 TYPICAL WIRING DIAGRAM V4 xx...
Page 22: ...13 8 623 Page 18 WIRING DIAGRAM 300EFC546 A Ref Drawing Pag 2 of 2...
Page 30: ...13 8 623 Page 26 FIGURE 4 2 TYPICAL WIRING DIAGRAM V6 xx 303EFC546 A Ref Drawing Page 1 of 2...
Page 31: ...13 8 623 Page 27 303EFC546 A Ref Drawing Page 2 of 2...