EPC-250 IOI 6-18 All rights reserved © ALTRONIC, LLC 2018
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13.0 DIGITAL INPUTS/OUTPUTS
Outputs 2-8 are set-up for the common functions of a typical installation.
SYMBOL
TYPE
DESCRIPTION
EPC LEGACY ENTRY
EPC-250 RELAY
I/1
Input
Start Override
None
CRI1
O/2
Output N.C.
RPM setpoint, speed exceeds
(80)
CRO2
O/3
Output N.O.
RPM Setpoint, speed exceeds
(81)
CRO3
O/4
Output N.C.
Time Delay
(82)
CRO4
O/5
Output N.O.
Time Delay
(83)
CRO5
O/6
Output N.C.
Over Crank – On if time expires and RPM
is less than setpoint
(84) , (85)
CRO6
O/7
Output N.C.
Flooding – On if RPM Less than setpoint
and FMP greater than set point
(86) , (87)
CRO7
O/8
Output N.C.
Fault
CRO8
13.1
Start Override Input 1 (I/1)
Can be used for various speed switch functions such as crank disconnect. 0/2
is tripped when the entered RPM is reached after start-up.
13.2
Engine RPM to Trip Output 2 (0/2)
Can be used for various speed switch functions such as crank disconnect. 0/2
is tripped when the entered RPM is reached after start-up.
13.3
Engine Rpm to Trip Output 3 (0/3)
A second speed switch similar to O/2, except that 0/3 is tripped when the
entered RPM is reached after start-up.
13.4
Time Interval After End of Start Override Signal to Trip Output 4 (0/4)
0/4 will trip after the entered time interval (in seconds) expires following the
end of the start override signal.
13.5
Time Interval After End of Start Override Signal to Trip Output 5 (0/5)
0/5 will trip after the entered time interval (in seconds) expires following the
end of the start override signal.
13.6
Overcrank Function, Trips Output 6 (0/6)
0/6 will trip if the RPM entered is not reached in the time interval (in seconds)
entered in the O/6 timer following the end of the start override signal.
13.7
Flooding Function, Trips Output 7 (0/7)
0/7 will trip if the RPM entered is not reached before the fuel pressure en-
tered in the O/7 input box is exceeded.
