ACC4100 Diesel Air Compressor Controller User Manual Page 11 of 52
“Stop Idle Delay”;
c)
When it enters stop idle delay (if configured), then idle relay is energized to output;
d)
It enters “ETS Solenoid Hold”, and ETS relay is energized to output; fuel relay output is
disconnected;
e)
It enters “Wait Stop Time”, and automatically judges whether it stops completely;
f)
When air compressor stops completely, it enters “After Stop Time”; Otherwise controller enters
stop failure and issues “Stop Failure” warning (after the alarm, if air compressor stops completely,
then it enters “After Stop Time”, and meanwhile “Stop Failure” alarm is removed automatically);
g)
When “After Stop Time” is over, it enters standby status.
4.4
START OPERATION FOR FUEL PRE-SUPPLY OUTPUT SETTING
When output port is configured to “Fuel Pre-supply Output”, and press
to start the air
compressor:
If the set pre-supply time is less than or equal to pre-heat time, LCD displays “Pre-heat Delay XX”,
pre-heat relay outputs (if configured) and pre-supply relay outputs (output for the set pre-supply time);
after pre-heat delay is over, fuel relay outputs the set fuel time (default: 1s) before start, then starting
relay outputs; the following start process is the same as the START PROCEDURE (for start process
please see 4.3.1, d)~g)).
If the set pre-supply time is more than the pre-heat time, pre-supply relay outputs in pre-heat delay
phase; after pre-heat delay is over, the following pre-supply time enters pre-supply phase, and LCD
displays “Fuel Pre-supply Time XX” and pre-supply relay outputs; after pre-supply delay is over, fuel relay
outputs the pre-set fuel time (default: 1s) before start; then starting relay outputs; the following start
process is the same as the START PROCEDURE (for start process please see 4.3.1 d)~g)).
If output port is configured to “Fuel Pre-supply Output”, air compressor stays at standby status and
it outputs cyclically according to the pre-set “Fuel Pre-supply Rest Time” and “Fuel Pre-supply Time”; If
the pre-set “Fuel Pre-supply Rest Time” is 0h, then fuel pre-supply doesn’t output.
4.5
EMERGENCY START
NOTE:
Press
and
simultaneously and air compressor can be started forcibly. At this time controller
doesn't detect the unit crank disconnect by crank conditions. Starter's disconnect is controlled by the operator. When
operator observes the unit has started, he/she should release the button. The starter stops outputting and controller
enters Safety On Delay.
4.6
LOAD/UNLOAD SPEED REGULATION PROCESS OF AIR COMPRESSOR
Under the state of idle running, press
and load control relay outputs. Controller enters normal
running. If current discharge pressure is less than unloading action pressure, then engine speed goes
up to rated speed. If current discharge pressure is larger than rated pressure, engine speed will
decrease to unloading speed. Between rated pressure and unloading action pressure, speed decreases
as pressure increases. Under normal running state, press
and load control relay disconnects and
it enters idle running. Engine speed returns to rated idle value.
For example:
