GM9907-L5
bulk scale controller user’s manual
- 57 -
5.3
Supplement Control
Application situation is different, packing scale hopper material level device
installation is divided into three situations, triple supplement (Supplement Full, OK, Empty),
double supplement (Supplement Full, Empty), single supplement (Supplement Empty) and
none supplement.
5.3.1
Triple supplement
When supplement Full, OK, Empty I/O Function input are defined
（
I10
/
111
/
112
are
defined
） ,
controller are in triple supplement logic control process
，
hopper should be
installed in the Full, OK and Empty three positions respectively
，
input corresponding
signals to the controller
,
detail logic control process as below
：
Supple
ment
Full
Supple
ment
OK
Supple
ment
Empty
Control process
ON
ON
ON
Supplement Full, OK, Empty ON
，
means current hopper is full
OFF
ON
ON
Supplement Full OFF mean hopper is not full, this state no
need to handle.
OFF
OFF
ON
Supplement Full, OK OFF
，
Empty ON
，
hopper has material,
but almost running out, controller output “ILL Supplement
（
O12
）
”signal start filling
，
till Supplement Full is ON
，
means
hopper is full
，
stop “FILL Supplement
（
O12
）
”output
OFF
OFF
OFF
Supplement Full, OK, Empty OFF, means hopper all lack of
material
，
controller will stop filling process
，
wait for filling,till
Supplement Empty ON, controller start filling process.
Supplement OK input to judge if need to start filling, controller filling process no need to
stop
（
Supplement Empty OFF stop filling process
）
,so relative to two material levels logic
control,triple can increase production by reducing feed interruptions due to lack of
material.
5.3.2
Double supplement
Supplement Full, Empty both are defined
，
that is
：
I10
,
I12
is defined as Input value
，
c
orresponding to double material level situation
.
Controller has the function of feeding
control
,
control theory is
：
when supplement Full, Empty OFF
，
controller supplement output
is ON
；
When supplement full ON, output is OFF. Meanwhile
，
before every filling
（
coarse,fine feed
）
,controller detect supplement empty if is ON
，
if is OFF, wait for this
signal
；
Only this signal is ON, starts filling process. In filling process
，
controller don’t
detect supplement Empty signal if is ON.
