Full Gauge Controls PCT-410Ri plus User manual

Ver.03
PCT-410Ri plus
DIGITAL PRESSURE CONTROLLER
WITH PROPORTIONAL OUTPUT
FOR COOLING CENTERS
1. DESCRIPTION
2. APPLICATION
For use with refrigeration processes controlling the system’s compressors (suction) or fans (discharge).
The PCT-410Ri plus is a pressure controller for use in plants that require cooling control on its
suction and discharge stages.
It has 5 control outputs: 4 digital outputs and 1 analog output for proportional control via frequency
inverter, and a pressure sensor input with 4 to 20mA output. Working in pairs, controls up to 5 fans and 5
compressors at the same time.
Through the remote communication between the suction and discharge controllers obtains more
precise control of the process.
Versatile, manages the drive of loads in linear mode, rotation or capabilities
And, through the RS-485 serial port allows communication with the software SITRAD for management
via internet.
3. TECHNICAL SPECIFICATIONS
- Power supply: 12Vdc
- Control pressure:0 to 200 psi / 0 to 13.8 bar (using theSB69-200A transducer*)
0 to 500 psi / 0 to 34.4 bar (using the SB69-500A transducer*)
*Transducer sold separately
- Resolution: 1 psi / 0.1 bar
- Maximum current: OUT1 to OUT4 - 2A / 250Vac
ALRM - 3A/250Vac
- Analog output maximum current: 10mA
- Dimensions: 71 x 28 x 71mm
- Controller operating temperature: 0 to 50°C
- Transducer operating temperature: -40 to 125°C
- Operating humidity: 10 to 90% RH (without condensation)
- Digital input: Switch connectionwith adjustable active state
- Control outputs: OUT1 - Digital output 1 of pressure control
OUT2 - Digital output 2 of pressure control
OUT3 - Digital output 3 of pressure control
OUT4 - Digital output 4 of pressure control
ALRM - Alarm digital output
ANALOG - Analog output from 0~10Vdc
4. CONFIGURATIONS
Attention
4.1 Control pressure adjust (SETPOINT)
Press for 2 seconds until appears , and release it after that. The adjusted operation
pressure will appear. Use to change the value and then press to record it.
4.2 To enter into the functions menu
Press simultaneously for two seconds until it appears, , then releasing it. When
, press (short hit) and enter the code (123) through keys .
To confirm, press the key . Through the keys access the other functions and
proceed in the same manner to adjust them. To leave the menu and return to normal operations, press
(long hit) until .
Before proceeding to the setpoint adjustments (desired pressure) and the configuration parameters,
select the pressure unit of measure and the type of pressure switch which you wish to work with,
because the modification/alteration of these parameters causes the instrument/controller to return to
its factory settings (see item 4.3).
@ [set]
> and < @
> and < [fun]
[f01] @ > and <
@ > and <
@ [---]appears
PCT410V03-03T-13302
DISCHARGE
PRESSURE GAUGE
SUCTION
PRESSURE GAUGE
DescriptionFun
4.3 Parameters table
Access code (123)
Indication Offset
Operation Mode
Control mode
Start / Stop Function
Digital outputs hysteresis
Analog output hysteresis
MinimumSetpoint allowed for the end user
MaximumSetpoint allowed for the end user
Low pressure alarm
High pressure alarm
Automatic rearm after alarm
Startup delay (activation)
Time for blocking the alarm
Delay for proving alarm situation
Numberof stages
Capacity of the digital stage 1
Capacity of the digital stage 2
Capacity of the digital stage 3
Capacity of the digital stage 4
Capacity of the analog stage
Digital outputs state when a sensor error is detected
Analog output value when a sensor error is detected
Minimum time between activation of 2 different stages
Minimum time between deactivation 2 different stages
Minimum time of stage activated
Minimum time of stage deactivated
Maximum operating time between maintenances on the stage 1
Maximum operating time between maintenances on the stage 2
Maximum operating time between maintenances on the stage 3
Maximum operating time between maintenances on the stage 4
Maximum operating time between maintenances on the analog stage
Alarm output cycle time
Remote alarm mode
Digital input mode
Address of the equipment on the network RS-485 (serial communication)
[f01]
[f02]
[f03]
[f04]
[f05]
[f06]
[f07]
[f08]
[f09]
[f10]
[f11]
[f12]
[f13]
[f14]
[f15]
[f16]
[f17]
[f18]
[f19]
[f20]
[f21]
[f22]
[f23]
[f24]
[f25]
[f26]
[f27]
[f28]
[f29]
[f30]
[f31]
[f32]
[f33]
[f34]
[f35]
[f36]
SUCTION DISCHARGE
-99
-5/ -0.3
0
0
0
1 / 0.1
1 / 0.1
0 / 0.0
0 / 0.0
0 / 0.0
0 / 0.0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0-off
0
1
999
5 / 0.3
1
6
1
200 / 13.8
200 / 13.8
200 / 13.8
200 / 13.8
200 / 13.8
200 /13.8
4
999
999
999
4
100
100
100
100
100
15
100
999
999
999
999
999
999
999
999
999
999
1-on
4
247
-
PSI/bar
-
-
-
PSI/bar
PSI/bar
PSI/bar
PSI/bar
PSI/bar
PSI/bar
-
sec.
sec.
sec.
-
%
%
%
%
%
-
%
sec.
sec.
sec.
sec.
x10h
x10h
x10h
x10h
x10h
sec.
-
-
-
0
0 / 0.0
0
4
0
32 / 2.2
10 / 0.7
0 / 0.0
200 / 13.8
0 / 0.0
200 / 13.8
0
0
0
1
4
25
25
25
25
25
0
0
2
1
1
1
999
999
999
999
999
0
1-on
0
1
999
20 / 1.4
1
6
1
300 / 20.6
300 / 20.6
500 / 34.4
500 / 34.4
500 / 34.4
500 / 34.4
4
999
999
999
4
100
100
100
100
100
15
100
999
999
999
999
999
999
999
999
999
999
1-on
4
247
-99
-20 / -1.4
0
0
0
1 / 0.1
1 / 0.1
0 / 0.0
0 / 0.0
0 / 0.0
0 / 0.0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0-off
0
1
-
PSI/bar
-
-
-
PSI/bar
PSI/bar
PSI/bar
PSI/bar
PSI/bar
PSI/bar
-
sec.
sec.
sec.
-
%
%
%
%
%
-
%
sec.
sec.
sec.
sec.
x10h
x10h
x10h
x10h
x10h
sec.
-
-
-
Min Max Unit Standard Min Max Unit Standard
0
0 / 0.0
0
4
0
160 / 11.0
50 / 3.4
0 / 0.0
500 / 34.4
0 / 0.0
500 / 34.4
0
0
0
1
4
25
25
25
25
25
0
0
2
1
1
1
999
999
999
999
999
0
1-on
0
1
4.4 Parameters description
- Access code (123)
This will be necessary for changing the configuration parameters. This code will not be necessary for
only viewing the adjusted parameters.
- Indication Offset
Allows compensation for any deviations on the pressure reading resulting from a change of the sensor.
[f01]
[f02]
[f03] - Operation Mode
This function defines the mode the PCT-410Ri plus must be configured.
[,0,] - Depressurize: The controller works to decrease the pressure until it reaches the
setpoint value (desired pressure).
[,1,] - Pressurize: The controller works to increase the pressure until it reaches the setpoint
value (desired pressure).
[f04] -
[f05]
Control mode
Function that selects the control method and outputs involved
[,0,] - Only analog output
[,1,] - Only digital outputs with linear activation
[,2,] - Only digital outputs with activation by time (rotation)
[,3,] - Only digital outputs with activation by capacities
[,4,] - Analog and digital outputs with linear activation
[,5,] - Analog and digital outputs with activation by time (rotation)
[,6,] - Analog and digital outputs with activation by capacities
- Start / Stop Function
This function reserves the digital OUT1 output for drive control to turn on or turn off a frequency
inverter. This feature applies only when the control mode is making use of the analog output (F04 = 0,
4, 5 or 6).If the controller is configured to use only digital outputs (F04 = 1, 2 or 3),

5. OPERATION
5.1 Control mode 0 - Analogic output only
In this control mode only the analog output is used, and thus, the hysteresis that controller will consider is
the function set value only: ”analogic output hysteresis” (F07). When the measured pressure is below the
setpoint, the analog output will have a value of 0%. At the moment the pressure rises, and is greater than
the setpoint, the analog output will increase its value until the measured pressure is the value of the
setpoint plus the hysteresis value. At this moment, the proportional output will have 100% power.
When the operation mode is in depressurize, the controller works to decrease the read pressure until
reaches setpoint value. If it is working in the pressurize mode, the controller works to increase the read
pressure until reaches setpoint value.
If the Start / Stop function is enabled, the first digital output starts to act as enabling control for a frequency
inverter. At depressurize mode, if the read pressure is less than or equal to the setpoint, the OUT 1 output
will be with the relay off, otherwise, if the read pressure is greater than the setpoint, the OUT 1 output will
be with the relay on.
For all the examples below we have the following configuration:
Setpoint: 30 psi
Hysteresis of analog output: 20 psi
Example 1:
Depressurize
Start/Stop Off
the controller ignores the value set in F05, leaving him disabled.
[,0,] - Disabled: The OUT 1 output works as a digital stage.
[,1,] - Enabled: The OUT 1 output works as Start / Stop for a frequency inverter.
NOTE: When enabled, maximum number of stages for this mode is 3 (three).
[f06] -
[f07] -
[f08] -
[f09] -
[f10] -
[f11] -
[f12] -
[f13] -Startup delay (activation)
[f14] -
[f15] -
[f16] -
[f17] -
[f18] -
[f19] -
[f20] -
[f21] -
[f22] -
Digital outputs hysteresis
Is the value of the relative pressure that defines the pressure range within which the digital outputs
should be activated. The points on which each stage will be activated depend on analog
hysteresis,number of stages and operation mode of stages. The minimum value of the digital hysteresis
is the number of stages configured.
Analog output hysteresis
Is the value of the relative pressure that defines the pressure range within which the analog output
should be activated. The minimum value of analog hysteresis is the hysteresis of the digital outputs
divided by the number of stages.
Minimum Setpoint allowed for the end user
Lower limit, the purpose of which is to avoid any accidental regulation of pressures at levels that are
exaggeratedly below the setpoint.
Maximum Setpoint allowed for the end user
Upper limit, the purpose of which is to avoid any accidental regulation of pressures at levels that are
exaggeratedly above the setpoint.
Low pressure alarm
This is the value of the reference pressure for activating the low pressure signal when below the desired
point.
High pressure alarm
This is the value of the reference pressure for activating the high pressure signal when above the
desired point.
In the event that the pressure gauge is configured as a discharge, a remote high pressure alarm should
also be sent to the suction pressure gauge, so that it deactivates its outputs.
Automatic rearm after alarm
This function defines how the pressure gauge will behave after the remote alarm situation stops.
[,0,] - Only accepts manual rearms, even after remote alarm situations stops
[,1,] - The controller only performs one automatic rearm
[,2,] - The controller only performs two automatic rearms
[,3,] - The controller only performs three automatic rearms
[,4,] - The controller only performs automatic rearms
Time counted from the initialization wherein the instrument only shows the pressure without activating
either the alarm or the stages.
Time for blocking the alarm
This is the time that the alarm will remain deactivated, even under alarm conditions. This block time
starts to be counted after the startup delay count has ended (F13).
Delay for proving alarm situation
Alarm blocking time to distinguish between one of the alarm situations or a transitory condition of the
system.
Number of stages
Function that indicateswhich stageswill be activated.
Capacity of the digital stage 1
This function sets the capacity of the digital stage 1 when the control system is using the activation by
capacities.
Capacity of the digital stage 2
This function sets the capacity of the digital stage 2 when the control system is using the activation by
capacities.
Capacity of the digital stage 3
This function sets the capacity of the digital stage 3 when the control system is using the activation by
capacities.
Capacity of the digital stage 4
This function sets the capacity of the digital stage 4 when the control system is using the activation by
capacities.
Capacity of the analog stage
This function sets the capacity of the analog stage when the control system is using the activation by
capacities.
Digital outputs state when a sensor error is detected
Use this function to configure the default state that each of the controler's outputs will assume when
pressure measurement error occurs. The table below indicates the function value according to each
output state.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Operation Mode OUT1 OUT2 OUT3 OUT4
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
Off
On
Off
Off
On
On
Off
Off
On
On
Off
Off
On
On
On
Off
Off
Off
Off
On
On
On
On
Off
Off
Off
Off
On
On
On
On
Off
Off
Off
Off
Off
Off
Off
Off
On
On
On
On
On
On
On
On
[f23] -
[f24] -
[f25] -
[f26] -
[f27] -
[f28] -
[f29] -
[f30] -
[f31] -
[f32] -
[f33] -
[saf]
[f34] -
[f35] -
[f36] -
Analog output value when a sensor error is detected
This function sets the value of the analog output when a pressure measurement error occurs.
Minimum time between activation of 2 different stages
This time guarantees that no simultaneous activations will take place, avoiding an overload on the
electrical system.
Minimum time between deactivation 2 different stages
Minimum time for the deactivation of different stages. This time prevents two or more charges from
being deactivated simultaneously.
Minimum time of stage activated
Guarantees a minimum time that the charge will be activated.
Minimum time of stage deactivated
Time provided to prevent a stage from being activated successively.
Maximum operating time between maintenances on the stage 1
Time in dozens of ours that stage 1 should remain functional without maintenance.
Maximum operating time between maintenances on the stage 2
Time in dozens of ours that stage 2 should remain functional without maintenance.
Maximum operating time between maintenances on the stage 3
Time in dozens of ours that stage 3 should remain functional without maintenance.
Maximum operating time between maintenances on the stage 4
Time in dozens of ours that stage 4 should remain functional without maintenance.
Maximum operating time between maintenances o the analog stage
Time in dozens of ours that analog stage should remain functional without maintenance.
Alarm output cycle time
The time in seconds the alarm output will cycle when an alarm condition occurs. If this function is set to
zero, the alarm output will be always on. By decrementing this function until the message is
displayed, the alarm output is configured to be activated only in case of sensor error, and will be
constantly on in this case.
Remote alarm mode
This function sets the connection mode of the remote pressostat.
[,0,] - Remote alarm off. With this value the PCT-410Ri plus will operate without a
remote pressostat.
[,1,] - Remote alarm on. With this value the PCT-410Ri plus will operate with a remote
pressostat.
Digital input mode
This function sets the operation of the digital input.
[,0,] - Digital input off
[,1,] - Turn off all outputs when the contact closes
[,2,] - Turn off all outputs when the contact opens
[,3,] - Turn on all outputs when the contact closes
[,4,] - Turn on all outputs when the contact opens
Address of the equipment on the network RS-485 (serial communication)
®
Address of the equipment on the network for communication with the software SITRAD .
Remarks: on the same network, there should be no equipment that shares the same address.
25%
0%
50%
75 %
100%
Setpoint
+5 psi
+10 psi +15 psi +20 psi +25 psi +15 psi
Measured
pressure
Analog
output

It is important to note that digital output capacities can be configured in any order, for instance: 20%, 40%,
10%, and30%for outputs OUT1 to OUT4.
5.5 Control Mode 4 - Analog and digital outputs with linear
activation
In this mode the drive of the digital outputs will always be after the analog output reaches its maximum
value (100%). The activation sequence of digital loads will be linear as in the item 5.2. Because this
operation mode uses the digital and analog outputs, the hysteresis that the controller consider will be the
sum of the functions: ”hysteresis of digital outputs” and “hysteresis of analogic output”.
When the operation mode is in depressurize, the controller works to decrease the read pressure until
reaches setpoint value. If it is working in the pressurize mode, the controller works to increase the read
pressure until reaches setpoint value.
If the Start / Stop function is enabled. The drive will take place when the pressure reaches the value for
each step even if the analog output does not reach 100%, the first digital output starts to act as control for
enabling a frequency inverter. At depressurize mode, if the read pressure is less than or equal to the
setpoint, the OUT 1 output will be with the relay off, otherwise, if the read pressure is greater than the
setpoint, the OUT 1 output will be with the relay on.
Setpoint: 30 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 4
Hysteresis of analog output: 25 psi
5.2 Control Mode 1 - Only digital outputs with linear activation
The digital outputs will be used in this control mode, and thus the controller will assume only the hysteresis
value configured in the function: "digital output hysteresis." The controller will add digital outputs as the
pressure deviates from the setpoint. The activation point for each output is calculated in accordance with
the hysteresis value and the number of stages configured.
Example: Setpoint: 30 psi
Hysteresis of digital outputs: 8 psi
Number of stages: 4
In this example the step for each digital output is 2 psi (8 psi divided by 4). The first digital stage will be
activated when the pressure reaches 32 psi (setpoint plus step), the second at 34 psi (setpoint plus 2 times
the step), the third at 36 psi (setpoint plus 3 times the step) and the fourth at 38 psi (setpoint plus 4 times
the step). Please note that at 38 psi (setpoint plus digital hysteresis) all digital outputs will be on.
Example 2: Using the same values as in example 1.
Pressurize
Start/Stop Off
Example 4: Using the same values as in example 1.
Pressurize
Start/Stop On
Example 3: Using the same values as in example 1.
Depressurize
Start/Stop On
25%
0%
50%
75 %
100%
Setpoint
-5 psi
-10 psi -15 psi
Measured
pressure
Analog
output
+5 psi
Setpoint
-15 psi -10 psi
-5 psi
-20 psi -20 psi -25 psi
25%
0%
50%
75 %
100%
Setpoint
+5 psi
+10 psi +15 psi +20 psi
+25 psi
Measured
pressure
Analog
output
OUT1
(Start Stop)
-5 psi
+20 psi +15 psi +10 psi
+5 psi +5 psi
Setpoint
Digital
ouputs
25%
0%
50%
75 %
100%
Setpoint
+5 psi
+10 psi +15 psi
Measured
pressure
Analog
output
OUT1
(Start Stop)
+5 psi
Setpoint
-15 psi -10 psi
-5 psi
+20 psi
-20 psi -25 psi
Digital
ouputs
5.3 Control Mode 2 - Only digital outputs with activation by time
(rotation)
Similarly to the previous mode, only the digital outputs will be used, and thus the controller will assume
only the hysteresis value configured in the function: "digital output hysteresis." In this mode the digital
outputs are controlled in accordance with the number of working hours, so that for switching on a new
stage the controller checks which one has the least working time, and for switching off one stage it checks
which one has the most working hours. This is aimed at ensuring balance in the operating time of the
digital outputs.
Example: Setpoint: 30 psi
Hysteresis of digital outputs: 8 psi
Number of stages: 4
5.4 Control Mode 3 - Only digital outputs with activation by
capacities
The digital outputs will be used in this control mode, and thus the controller will assume only the hysteresis
value configured in the function: "digital output hysteresis."
The activation point for each output is calculated in accordance with the output capacity and the number of
stages configured. The activation will occur in accordance with the demand of the system, and the
controller will always activate the set with the smallest number of outputs meeting the current demand.
The calculation of the demand is made considering the following formula:
+ 2 psi
+ 4 psi
+ 6 psi
+ 8 psi
Setpoint
OUT1
OUT1+OUT2
OUT1+OUT2+OUT3
OUT1+OUT2+OUT3+OUT4
Hysteresis
Time
Setpoint
OUT1
OUT1+OUT2
OUT1+OUT2+OUT3
OUT1+OUT2+OUT3+OUT4
OUT2+OUT3+OUT4
OFF
Hysteresis
Time
OUT3+OUT4
OUT4
+ 2 psi
+ 4 psi
+ 6 psi
+ 8 psi
Measured pressure - Setpoint
Hysteresis total x 100
Demand (%) =
Example: Capacity of digital output 1 (OUT1):10%
Capacity of digital output 2 (OUT2):20%
Capacity of digital output 3 (OUT3):30%
Capacity of digital output 4 (OUT4):40%
Setpoint: 10 psi
Hysteresis of digital outputs: 10 psi
The performance levels of each digital output will be:
Measured pressure = 11 (demand of 10%) →OUT1
Measured pressure = 12 (demand of 20%) → OUT2
Measured pressure = 13 (demand of 30%) → OUT3
Measured pressure = 14 (demand of 40%) → OUT4
Measured pressure = 15 (demand of 50%) → OUT2+OUT3
Measured pressure = 16 (demand of 60%) → OUT2+OUT4
Measured pressure = 17 (demand of 70%) → OUT3+OUT4
Measured pressure = 18 (demand of 80%) → OUT1+OUT3+OUT4
Measured pressure = 19 (demand of 90%) → OUT2+OUT3+OUT4
Measured pressure = 20 (demand of 100%) → OUT1+OUT2+OUT3+OUT4
OUT4
OUT3
OUT2
OUT1
Time
Time
Digital
ouputs
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Demand
Setpoint
Digital hysteresis
Number of stages
Step =
Pressure to activate the output "N"
Activation = Setpoint + (N x Step)
Pressure to deactivate the output "N"
Activation = Setpoint + ((N-1) x Step)
Outputs activation step
Step = Digital hysteresis
Number of stages

OUT1
OUT4
OUT3
OUT2
0%
80 %
20 %
40 %
60 %
100%
Analog
Hyteresis
Analog
Hyteresis
Digital
Hyteresis
Digital
Hyteresis
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Setpoint
-5 psi
-10 psi -15 psi -20 psi -25 psi -30 psi -35 psi -40 psi -45 psi -45 psi -40 psi -25 psi
0 psi
-5 psi
-10 psi -15 psi -20 psi -30 psi -35 psi
Example 1:
Pressurize, Start/Stop Off
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 4
Hysteresis of analog output: 25 psi
OUT1
OUT4
OUT3
OUT2
0%
80 %
20 %
40 %
60 %
100%
Setpoint
Analog
Hyteresis
Analog
Hyteresis
Digital
Hyteresis
Digital
Hyteresis
+5 psi
+10 psi +15 psi +20 psi +25 psi +30 psi +35 psi +40 psi +45 psi +45 psi +40 psi +25 psi +0 psi +5 psi +10 psi +15 psi +20 psi +30 psi +35 psi
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Example 2: Depressurize, Start/Stop Off
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 4
Hysteresis of analog output: 25 psi
Then, the step of each digital output is 5 psi (20 psi divided by 4). Thus we can conclude that each digital stage
corresponds to 20% of analog output (step divided by the analog hysteresis) in the case: 25 psi divided by 5.
Thus whenever the controller enable or disable a digital stage it will compensate for the analog output by adding
or reducing the corresponding portion (20%). Thus the analog output will be 80%, and as increases or
decreases the pressure, the controller will compensate each actuation the 20% correspondingly.
Example 3: Depressurize, Start/Stop On
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 3
Hysteresis of analog output: 25 psi
Example 4: Pressurize, Start/Stop On
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 3
Hysteresis of analog output: 25 psi
OUT1
OUT4
OUT3
OUT2
0%
80 %
20 %
40 %
60 %
100%
Setpoint
Analog
Hyteresis
Digital
Hyteresis
Digital
Hyteresis
+5 psi
+10 psi +15 psi +20 psi +25 psi +30 psi +35 psi +40 psi +45 psi +45 psi +40 psi +25 psi +0 psi +5 psi +10 psi +15 psi +20 psi +30 psi +35 psi
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Analog
Hyteresis
Exemplo 1: Depressurize, Start/Stop Off
Example 2: Pressurize, Start/Stop Off
OUT1
OUT4
OUT3
OUT2
0%
80 %
20 %
40 %
60 %
100%
Setpoint
Analog
Hyteresis
Digital
Hyteresis
Digital
Hyteresis
-5 psi
-10 psi -15 psi -20 psi -25 psi -30 psi -35 psi -40 psi -45 psi -45 psi -40 psi -25 psi
0 psi
-5 psi
-10 psi -15 psi -20 psi -30 psi -35 psi
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Analog
Hyteresis
OUT1
OUT4
OUT3
OUT2
0%
80%
20%
40%
60%
100%
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Setpoint
-6 psi
-12psi
-18 psi -18 psi -12 psi
-6 psi
Setpoint
Digital
Hyteresis
Digital
Hyteresis
OUT1
OUT4
OUT3
OUT2
0%
80%
20%
40%
60%
100%
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Setpoint
+6 psi
+12psi
+18 psi +18 psi +12 psi
+6 psi
Setpoint
Digital
Hyteresis
Digital
Hyteresis
-45 psi -45 psi
+45 psi +45 psi
5.6 Control Mode 5 - Analog and digital outputs with drive-time
(rotation)
In this mode the digital outputs are controlled according to the number of worked hours, and to turn a new
stage is checked that it has the smallest work time and to turn off a stage is checked which has the largest
working time. This aims to ensure balance in the times of operation of the digital outputs. Because this
operation mode uses the digital and analog outputs, the hysteresis that the controller consider will be the
sum of the functions: ”hysteresis of digital outputs” and “hysteresis of analogic output”. The operating mode
of the stages when the function Star/Stop is enabled, will occur when the pressure reaches the value for
each case even if the analog output does not reach 100%.
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 4
Hysteresis of analog output: 25 psi
Digital hyteresis
Number of stages
Step =

Example 3: Depressurize, Start/Stop On
Setpoint: 50 psi
Hysteresis of digital outputs: 20 psi
Number of stages: 3
Hysteresis of analog output: 25 psi
5.7 Control Mode 6 - Analog and digital outputs with activation by
capacities
In this operating mode the analog output works together with the digital outputs in such a way to meet the
system demand in full. The activation point for each digital output is calculated in accordance with the
output capacity and the number of stages configured. The activation will be made such that the digital
stages meet most of the demand, thus leaving only the residual needs for the analog output. Due to the
fact that this operating mode uses digital and analog outputs, the controller will assume the hysteresis that
is equal to the sum of the following functions: "digital output hysteresis" and "analog output hysteresis."
When the operation mode is in depressurize, the controller works to decrease the read pressure until
reaches setpoint value. If it is working in the pressurize mode, the controller works to increase the read
pressure until reaches setpoint value.
If the Start / Stop function is enabled, the first digital output starts to act as enabling control for a frequency
inverter. At depressurize mode, if the read pressure is less than or equal to the setpoint, the OUT 1 output
will be with the relay off, otherwise, if the read pressure is greater than the setpoint, the OUT 1 output will
be with the relay on.
As the demand will be the same percentage for pressurization or depressurization mode, the following
example is for both cases.
Capacity of digital output 1 (OUT1): 10%
Capacity of digital output 2 (OUT2): 20%
Capacity of digital output 3 (OUT3): 30%
Capacity of digital output 4 (OUT4): 30%
Hysteresis of digital outputs: 10 psi
Capacity of analog output (ANALOG): 40%
Hysteresis of analog output: 10 psi
Setpoint: 40 psi
The activation levels will be as follows: (NOTE: the activation level of the analog output is proportional to
the demand being supplied, for example: when the analog output is supplying 40% of the demand (full
capacity), it will have the output at 100% (10 Vcc). When the analog output has to supply 20% of the
demand (half capacity), it will have the output at50% (5 Vcc).
Note: When the user wants to use the Start / Stop output in control mode for capabilities with
analog and digital outputs, the number of stages (F16) follows the following rule:
1 Stage: uses OUT1 output only (Start/Stop)
2 Stages: use OUT1 output (Start/Stop) and capacity of stage 2
3 Stages: use OUT1 output (Start/Stop), capacity of stage 2 and capacity of stage 3
4 Stages: use OUT1 output (Start/Stop), capacity of stage 2, capacity of stage 3 and capacity
of stage 4
Example 1: Depressurize, Start/Stop Off (Setpoint: 40 psi)
Analog
output
Demand
Setpoint
OUT4
25%
0%
OUT3
50%
75%
OUT2
100%
OUT1
60%
10%
70%
20%
80%
30%
90%
40%
100%
50%
Time
Time
Time
Digital
outputs
Example 4: Pressurize, Start/Stop On
Hysteresis of digital outputs: 20 psi
Number of stages: 3
Hysteresis of analog output: 25 psi
Setpoint: 50 psi
Example 3: Depressurize, Start/Stop On
Setpoint: 40 psi Analogic hysteresis = 10
Digital hysteresis = 10 Number of stages = 4
Stage capacity: OUT2=10, OUT3=20, OUT4=30 and Analog=40%
40 psi
41 psi
42 psi
43 psi
44 psi
45 psi
46 psi
47 psi
48 psi
49 psi
50 psi
51 psi
52 psi
53 psi
54 psi
55 psi
56 psi
57 psi
58 psi
59 psi
60 psi
40 psi
41 psi
42 psi
43 psi
44 psi
45 psi
46 psi
47 psi
48 psi
49 psi
50 psi
51 psi
52 psi
53 psi
54 psi
55 psi
56 psi
57 psi
58 psi
59 psi
60 psi
Pressure
Pressure
Demand
Demand
0 (%)
5 (%)
10 (%)
15 (%)
20 (%)
25 (%)
30 (%)
35 (%)
40 (%)
45 (%)
50 (%)
55 (%)
60 (%)
65 (%)
70 (%)
75 (%)
80 (%)
85 (%)
90 (%)
95 (%)
100 (%)
0 (%)
5 (%)
10 (%)
15 (%)
20 (%)
25 (%)
30 (%)
35 (%)
40 (%)
45 (%)
50 (%)
55 (%)
60 (%)
65 (%)
70 (%)
75 (%)
80 (%)
85 (%)
90 (%)
95 (%)
100 (%)
OUT1
OUT1 (10%)
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
ON
ON
OUT2 (10%)
OUT2 (20%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
OUT3(20%)
OUT3 (30%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OUT4(30%)
OUT4 (30%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ANALOG
AN. (40%)
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
0
12.5
25
37.5
50
62.5
75
87.5
100
0
0
12.5
0
12.5
0
12.5
0
12.5
0
12.5
25
The graph below illustrates either example 1 and example 2.
Example 2: Pressurize, Start/Stop Off (Setpoint: 60 psi)
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 (10%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
ON
ON
OUT2 (20%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
OUT3 (30%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OUT4 (30%)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
AN. (40%)
0
12.5
25
37.5
50
62.5
75
87.5
100
12.5
0
12.5
0
12.5
0
12.5
0
12.5
75
87.5
100
OUT1
OUT4
OUT3
OUT2
0%
80%
20%
40%
60%
100%
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Digital
Hyteresis
Digital
Hyteresis
Setpoint
+6 psi
+12psi
+18 psi +18 psi +12 psi
+6 psi
Setpoint
OUT1
OUT4
OUT3
OUT2
0%
80%
20%
40%
60%
100%
Measured
pressure
Measured
pressure
Analog
output
Digital
outputs
Setpoint
-6 psi
-12psi
-18 psi -18 psi -12 psi
-6 psi
Setpoint
Digital
Hyteresis
Digital
Hyteresis
-45 psi -45 psi
+45 psi +45 psi

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
1245678910 11 12
3
1245678910 11 12
3
12V
Power
supply
NA 1
OUT 2 OUT 1
Load 1 Load 2 Load 3 Load 4
NA 3
COMMON
NF
OUT 3
OUT 4
+
NA 2
NA 4
NA
COMMON
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
AA
B B
AB
Alarm
OUT
Alarm
IN
Serial
communication
RS-485
Serial
communication
RS-485
ALMR SERIAL
ALMR SERIAL
Brown - A
Red - B
RS-485
®
AA
B B
AB
AA
B B
AB
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.

IMPORTANT
Attention on transductor installation, do not turn on the terminals on reverse position, it can
damage totally the transductor.
According to the chapters of norm IEC 60364:
1: Install protector against overvoltage on the power supply
2: Sensor cables and signal cables of the computer may be joined, but not in the same electric conduit
through which the electric input and the activation of the loads run
3: Install transient suppresors (RC filters) parallel to the loads as to increase the product life of the relays.
Schematic for the connection of supresors
to contactors
Suppresor
A1
A2
A1 and A2 are the
contactor coil terminals.
Schematic for the connection of supresors to
direct activation loads
Load
Suppresor
For direct activation the maximum
specified current should be taken
into consideration.
PROTECTIVE :VINYL
This adhesive vinyl (included inside the packing) protects the instruments against
water drippings, as in commercial refrigerators, for example. Do the application after
finishing the electrical connections.
Remove the protective paper
and apply the vinyl on the entire
superior part of the device,
folding the flaps as indicated by
the arrows.
72 mm
Dimension of the clipping
for setting of the instrument
in panel
29 mm
2013