5.5 WARNING/SHUTDOWN
, Controller Responses. This table
reflects the warnings and shutdowns that the con-
troller will respond to. The message indicated will
be displayed on the EMS screen.
5.6 COMMUNICATIONS
Multiple units can be connected together using the
3 pin connector located on the control panel. This
connection permits the identification of one pack-
age as a “master” and others as “slave”. The “mas-
ter” package will control the operation of all “slave”
packages based on demand. Refer to the Murphy
Sequence of Operation #50-30-1735 for a detailed
description of setting up this function.
Section 5
CONTROLLER
24
CLASS
SD/WA
EMS DISPLAY
SET POINT
A
SD
OVERCRANK
4 cranks
A
SD
NO SPEED SIGNAL
< 500 RPM
A
WA
HI P1 AL
49 PSI
A
SD
HI PI SD
52 PSI
B
SD
LO P3 SD
30 PSI
B
WA
HI P3-P4 AL
20 PSID
S
WA
HI T1 AL
435 °F > 10 SEC
S
SD
HI TI SD
445 °F > 10 SEC
A/S
SD
HI TI immediate SD
460 °F
S
WA
HI T2 AL
435 °F > 10 SEC
S
SD
HI T2 SD
445 °F > 10 SEC
A/S
SD
HI T2 immediate SD
460 °F
A
WA
HI T3 AL
160 °F
A
SD
HI T3 SD
165 °F
A
WA
HI T4 AL
155 °F
A
SD
HI T4 SD
160 °F
A
WA
HI T5 AL
155 °F
A
SD
HI T5 SD
160 °F
A
SB
LOW T6
< +25°F
S
SD
LO P2 SD
10 MINUTES @<50 PSI
A
WA
LO FUEL LVL AL
15 % (38 GAL)
A
SD
LO FUEL LVL SD
6 % (15 GAL)
S
WA
LOST FUEL SENDER
lost signal, fuel level sensor or connection failure
B
WA
AIR FLTR DP AL (P3-P4)
16” H20
B
SD
AIR FLTR DP SD (P3-P4)
18” H20
B
SD
CAT ECM WARN
ON
A
WA
CAT ECM SRV REQ
ON
(Continued on next page)
“A”
always armed
“B”
armed when the lockout delay timer expires
“S
” armed when its own lockout delay timer expires
When a shutdown or warning condition exists, the reset button must be pressed to clear and reset the system.
In the case of a warning, when the reset push button is pressed, if the warning condition has already cleared
itself, then the warning display and compressor warning/shutdown light will be cleared. If the warning condi-
tion is still present, then the warning display and the compressor warning /shutdown light will remain on. In
the case of a shutdown, the unit will be locked out from running or being restarted until the reset push button
is pressed. Once the reset push button is pressed, and the shutdown condition has been cleared, the com-
pressor warning/shutdown light will be turned off, and the unit will go into “STANDBY” mode to be ready to
start.
Table 5-2 Controller Responses
Summary of Contents for DE-18
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