6. FACILITATED ACCESS
6.1 Visualize minimum and maximum pressures
Pressing the key
you can visualize the minimum and maximum pressures of the pressure gauge. After
pressing the key, the minimum and maximum pressures will be displayed, respectively, followed by the
message
indicating the end of the operation. If the key
remains pressed in, the values will be
reinitialized and the message
will be shown in the display.
6.2 Display the hours worked
Pressing the key
you can visualize the hours worked for each control stage. After pressing the key, the
message
will appear in the display with the number of the stage. Then the functioning time will be
displayed inmultiples of tens of hours (x10h) for the stage in question. This operation will be repeated for the
four stages of the controller, until the message
is displayed, indicating the end of the operation.
6.3 Manual rearmof the remote alarm
(only the suction pressure gauge)
If the remote alarm has been activated, the message
will alternate in the display. Pursuant to what is
configured in the rearm type function, (F12) the user will have to manually rearm the controller. For this, the
pressure of the discharge pressure gauge should already be returned to normal, and then the user should
press the keys
and
simultaneously until the rearm message
is shown on the display. After
this operation, the message
will be displayed and the suction pressure gauge returns to normal
operations.
If the discharge pressure gauge is still at a high pressure status, the controller will not allow the user to rearm
the suction pressure gauge. In this case, upon pressing the keys
and
simultaneously, only the
message
will be displayed, indicating that no rearm took place.
6.4 Restart of the maintenance alarm
In the event that any of the maintenance alarms has activated the message
with the number of the
stage, it will be changed on the display. To restart the alarm, press the keys
and
for four seconds.
After this, the alarm message for the stage will be once again displayed followed by the message
,
indicating that the alarm was restarted. This operation will be automatically executed for all of the maintenance
alarm active at the time. Upon restarting the maintenance alarm, the hour counter used on the compressor in
question will be set at zero.
6.5 Viewing the analog output
Pressing quickly the key
you can view for 5 seconds the current value (%) of analog output. When the
display indicates 00.0% the analog output will have 0 volts, when the display indicates 100% analog
output will have 10 volts .
<
[---]
<
[rst]
>
[0-,]
[---]
[pH1]
<
@
[Rea]
[---]
<
@
,
[---]
[a-,]
>
@
[rst]
@
7. SIGNALLING
Low pressure alarm
High pressure alarm
Remote alarm (only the suction pressure gauge)
Communication cable between the pressure gauges interrupted or disconnected
Maintenance alarm of digital output 1 (OUT1)
Maintenance alarm of digital output 2 (OUT2)
Maintenance alarm of digital output 3 (OUT3)
Maintenance alarm of digital output 4 (OUT4)
Maintenance alarm of analog output (ANALOG)
Digital input active
Configuration parameters not programmed or out of range
8. PRESSURE UNIT SELECTION
To define the pressure unit that the system will use to operate, enter into the functions menu
insert the access code "231" there and confirm it by hitting key
. The indication
will appear,
then press
or
to choose between:
Pressure unit psi
Pressure unit bar
Confirm the selection with the key
and then the message
9. SELECTION OF THE TYPE OF PRESSUREGAUGE
To define the type of pressure gauge that the controller will operate between with the access code "312"
on the function
and confirm with the key
.The indication
will appear, press
or
to choose between:
discharge pressure swi
Confirm the selection with the key
and then the message
confirming the operation will be
displayed. Upon altering the type of pressure gauge, the values for the functions return to the "standard"
values
[al0]
[aH1]
[pH1]
[Cab]
[a-1]
[al2]
[al3]
[al4]
[A-A]
[din]
[err]
Pressure sensor disconnected or out of range
[ppp]
[f01]
@
[Uni]
>
<
[ps1]
[bar]
@
[faC]
[f01]
@
[ran]
>
<
[pH1]
@
[faC]
,
confirming the operation will be
displayed. Upon altering the type of pressure gauge, the values for the functions return to the "standard"
values (see item 4.3).
tch (up to 500psi)
[plO]
suction pressure gauge (up to 200psi)
(see item 4.3).
10. WIRING DIAGRAM
Transducer
Brown
Green
1
2
4
5
6
7
8
9
10
11
12
3
1
2
4
5
6
7
8
9
10
11
12
3
12V
Power supply
NA
1
OU
T 2
OU
T 1
Load 1 Load 2 Load 3 Load 4
NA
3
CO
MM
ON
NF
OU
T 3
OU
T 4
+
NA
2
NA
4
NA
CO
MM
ON
B
A
To the terminal of the distribution box
SCHEMATIC FOR TRANSDUCER
Brown:
12Vdc
Green:
4~20mA
Over the specifield current
use a contactor
1/4” SAE
GND
ANALOG
ALRM
Analog output
(0~10Vdc)
Digital input
Remote alarm
Serial communication
RS-485
Example 4: Pressurize, Start/Stop On
Setpoint: 60 psi Analogic hysteresis = 10
Digital hysteresis = 10 Number of stages = 4
Stage capacity: OUT2=10, OUT3=20, OUT4=30 and Analog=40%
60 psi
59 psi
58 psi
57 psi
56 psi
55 psi
54 psi
53 psi
52 psi
51 psi
50 psi
49 psi
48 psi
47 psi
46 psi
45 psi
44 psi
43 psi
42 psi
41 psi
40 psi
Pressure
Demand
0 (%)
5 (%)
10 (%)
15 (%)
20 (%)
25 (%)
30 (%)
35 (%)
40 (%)
45 (%)
50 (%)
55 (%)
60 (%)
65 (%)
70 (%)
75 (%)
80 (%)
85 (%)
90 (%)
95 (%)
100 (%)
OUT1
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OUT2 (10%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
OUT3(20%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OUT4(30%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ANALOG
0
12.5
25
37.5
50
62.5
75
87.5
100
12.5
0
12.5
0
12.5
25
37.5
50
62.5
75
87.5
100
Analog
output
Demanda
Setpoint
OUT1
25%
0%
OUT2
50%
75%
OUT3
100%
OUT4
60%-------
10%-------
70%-------
20%-------
80%-------
30%-------
90%-------
40%-------
100%-------
50%-------
Time
Time
Time
Digital
outputs
12,5%
55%
5%
65%
15%
75%
25%
85%
35%
95%
45%
The graph below illustrates either example 3 and example 4.
11. INTEGRATING CONTROLLERS, RS-485 SERIAL INTERFACE
AND COMPUTER
A
A
B
B
A B
Alarm
OUT
Alarm
IN
Serial
communication
RS-485
Serial
communication
RS-485
ALMR
SERIAL
ALMR
SERIAL
Brown - A
Red - B
RS-485
®
A
A
B
B
A B
A
A
B
B
A B
Serial interface
RS-485
Full Gauge
RS-485
SUCTION
PRESSURE GAUGE
DISCHARGE
PRESSURE GAUGE
RS-485 Serial Interface
®
Device used to establish the
connection Full Gauge Controls’
instruments with the Sitrad
.
Terminal
grounded
External
mesh
Distribution Box
Used to connect more than one instrument to the Interface. The
wire's connections must be made in agreement with the following
rules: terminal
A
of the instrument connects to the terminal
A
of
the distribution box, that must be connected with the terminal
A
of
the Interface. Repeat the action for terminals
B
and
, being
the cable shield.
the terminal of distribution box must be connected to the
respective terminals of each instrument.
ENVIRONMENTAL INFORMATION
Package:
The packages material are 100% recyclable. Just dispose it through specialized
recyclers.
Products:
The electro components of Full Gauge controllers can be recycled or reused if it is
disassembled for specialized companies.
Disposal:
Do not burn or throw in domestic garbage the controllers which have reached the end-of-
life. Observe the respectively law in your region concerning the environmental
responsible manner of dispose its devices. In case of any doubts, contact Full Gauge
controls for assistance.
