Emerson Dixell XV300K Series Wiring diagram

XV300K
MASTER CONTROLLER
FOR AC FANS

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INDEX
1READ CAREFULLY.................................................................................................................................................................3
2PRELIMINARY INSPECTIONS - WARRANTY ..........................................................................................................................3
2.1 DISPOSAL..............................................................................................................................................3
3XV300K –USE FEATURES.....................................................................................................................................................3
4Coding .................................................................................................................................................................................3
5TECHNICAL CHARACTERISTICS ............................................................................................................................................4
6MECHANICAL INSTALLATION ..............................................................................................................................................5
7ELECTRICAL INSTALLATION .................................................................................................................................................5
7.1 LED WARNING SIGNALS........................................................................................................................7
7.2 PANORAMIC VIEW CARDS....................................................................................................................7
8WIRINGS..............................................................................................................................................................................9
9CONTROL PANEL ...............................................................................................................................................................10
10 STATE MENU .....................................................................................................................................................................10
10.1 STATE WINDOW BOXES......................................................................................................................10
10.2 LANGUAGE SETTING...........................................................................................................................11
11 OPERATING PARAMETERS MENU - CHILLER .....................................................................................................................12
11.1 PARAMETERS READING AND EDITING ...............................................................................................12
11.2 COOLING CYCLE PARAMETERS [CO1] - CHILLER .................................................................................12
11.3 HEATING CYCLE PARAMETERS [HEA] - CHILLER .................................................................................13
12 OPERATING PARAMETERS MENU - DRY COOLER..............................................................................................................14
12.1 PARAMETERS READING AND EDITING ...............................................................................................15
12.2 COOLING CYCLE PARAMETERS [CO1] –DRY COOLER.........................................................................15
12.3 HEATING CYCLE PARAMETERS [HEA] –DRY COOLER .........................................................................16
13 OPERATING PARAMETERS MENU - SLAVE ........................................................................................................................17
13.1 PARAMETERS READING AND EDITING ...............................................................................................17
13.2 WORKING PARAMETERS [IC] –SLAVE ..............................................................................................18
14 SPEED LIMITS...................................................................................................................................................................18
15 FACTORY PARAMETERS MENU .........................................................................................................................................19
15.1 BASIC SETTINGS..................................................................................................................................20
15.2 MOTOR SETTINGS...............................................................................................................................22
15.3 RELAY SETTINGS .................................................................................................................................23
15.4 MODBUS SETTINGS ............................................................................................................................23
15.5 DIAGNOSIS..........................................................................................................................................24
16 REAL TIME CLOCK..............................................................................................................................................................25

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1 READ CAREFULLY
CAUTION! BEFORE INSTALLING THE XV300K MASTER CONTROLLER READ CAREFULLY
THE MANUAL AND FOLLOWS ALL THE INSTRUCTIONS HEREIN. WITH POWERED
CONTROLLER DO NOT TOUCH THE INNER ELECTRICAL PARTS IN ANY CASE. IN
COMPLIANCE WITH THE EU RULES AND THE EMC DIRECTIVES, PLEASE REMIND THAT THE
XV300K CONTROLLER IS DESIGNED TO BE INCORPORATED ON MACHINES OR
INTEGRATED ON CONTROL PANELS AND THEREFORE IS TO BE CONSIDERED AS A COMPONENT. THE
MACHINE INSTALLATOR SHALL PROVIDE FOR THE GUARANTEE OF COMPLIANCE OF ITS EQUIPMENT TO
SUCH RULES. IN THE EVENT THAT THE CONTROLLER FAILS TO OPERATE AND CAUSES DAMAGES TO
THINGS OR PERSONS IT SHALL BE THE INSTALLER’S RESPONSIBILITY TO PROVIDE SAFETY DEVICES OR
SYSTEMS TO PROTECT OR WARN ABOUT THE FAILED OPERATION. IN ANY MOMENT AND WITHOUT
NOTICE FAE FAGAN APPLICAZIONI ELETTRONICHE RESERVES TO CARRY OUT TECHNICAL CHANGES
AIMED AT ENHANCING THE QUALITY OR THE PERFORMANCE OF ITS PRODUCTS.
2 PRELIMINARY INSPECTIONS - WARRANTY
Before installing the controller, make sure that it has not been damaged during the carrying and that it corresponds to
the model ordered. Check that the technical specifications listed in the label match with those written in the delivery
note and in the order form. The controller is covered by a 12-month warranty starting from the delivery. The warranty
covers production defects not due to damaging or wrong use, for goods returned to us EX-WORKS. Any damage
occurred during the carrying shall be reported to the carrier in with the local legislation.
2.1 DISPOSAL
The sign marked on the equipment indicates that it is not to be considered as a normal domestic waste; therefore it
has to be disposed of in a specific electrical and electronic equipment recycling point.
3 XV300K –USE FEATURES
The XV300K electronic controller is normally used to control the speed of AC fans, pumps and centrifugal pumps. It is
based on the principle of symmetrical phase partialisation and It is suitable for adjustable voltage motors. XV300K
operates on the basis of the inputs received through the measurements, the parameters settings values, the
controlling I/O and the control panel. The control panel is used to set the parameters values and read the information
about the unit status. XV300K is provided with Modbus connection to dialog with a supervising remote device.
4 CODING
Position
1
2
3
4
5
6
7
8
XV3
08
K
-6
1
1
2
1
Position
1
Model Family: XV300K
2
Nominal current in Ampere
3
External case: K=boxed
4
Power supply: -6=230-400VAC, -8=440-460VAC (*)
5
1=MASTER
6
IP degree: 1=IP55
7
1=RTC; 2=no RTC
8
Display type: 1=normal display; 2=OLED display
(*) 440-460VAC available only on request

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Power
max
(kVA)
Current
nominal
(A)
Current
max*
(A)
Power
dissipation
(W)
XV308K
5,5
8
12
30
XV312K
8
12
23
60
XV320K
13
20
30
80
XV328K
19
28
50
120
XV340K
26
40
70
155
XV350K
32
50
70
180
XV360K
41
60
80
250
NOTE:
The data are related to operate at 400V~ 50Hz. For 230V voltage supply or XV3xxK models at 440-460V all
current are the same.
(*) Max current refers to an enviroment temperature of 50°C for a maximum time of 10 second every 5 minutes.
5 TECHNICAL CHARACTERISTICS
POWER SUPPLY
230/400V~ +10%/-15%, (440/460V~ on demand)
FREQUENCY
50-60Hz
MAX VOLTAGE POWER OUT
>97% of power supply
OPERATING TEMP.
-25°C/+50°C
STORING TEMP
-40°C/+80°C
MAX TEMP.DISSIPATOR
75°C
PROTECTION GRADE
IP55 self extinguishing plastic box, pollution degree 3
ELECTRIC CLASSIFICATION
Class II at the command imputs (insulation of 4kV between
commands block and the device supplied parts). Class I as
regards the accessible parts
PROTECTIONS
Phase lost, inside overheating, sensor missing, external
emergency (motor klixon)
WARNING: the regulator restores automatically
Protection against power surges Class II
ACTION-DISCONNECTION
Type 1(Y). Residual current motor < 15mA
SOFTWARE STRUCTURE
Class A
ELECTRICAL CONNECTION
For XV308-12-20-28-40K Class X, for XV350-60K Class M.
NORMATIVE According to safety directive, reference standard EN60730-1. According to electromagnetic directive, reference
standard EN 61800-3. With refer to some typical applications, the XV300K8-12-20 regulators are suitable for
residential and commercial ambients, while the XV300K 28-40-50-60 regulators are suitable for industrial ambients.
XV300K regulators are designed to be installed inside a machine or a standard electrical cabinet and are therefore
considered a component. The installer must guarantee that the machine conforms to such regulations.
CAUTION This control does not contain current harmonics filter and for applications on public network
power supply the installer must make ref. to EN 61000-2-4 and EN 61000-3-12.

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6 MECHANICAL INSTALLATION
The XV300K regulator must be wall-mounted vertically, in order to guarantee adequate dispersion of heat in the area
of air circulation and prevent obstructions to air flow in the dissipator zone.
XV300K has IP55 grade protection, anyway protect it from corrosive liquids, gas, heat sources and position it
preferably sheltered from the sun's rays. Make sure that it does not undergo vibrations.
Model
Weight
(kG)
Dimensions (mm)
A B C*
Fixed screw (mm)
D E F Ø
Cable glands IP68 (Metric)
M16
M20
M25
M32
M40
XV308K
2,5
230
165
150
215
80
/
M4
1+(1)
-
2
-
-
XV312K
4
230
265
165
215
170
/
M4
1+(1)
1
2
-
-
XV320K
4,8
230
265
230
215
170
/
M4
1+(1)
1
2
-
-
XV328K
7
340
270
235
322
165
/
M5
1+(1)
1
-
2
-
XV340K
9
340
270
235
322
165
/
M5
1+(1)
1
-
-
2
XV350K
17
340
440
235
322
340
170
M5
1+(1)
1
-
-
2
XV360K
18
340
440
235
322
340
170
M5
1+(1)
1
-
-
2
C* = increase C value of 29mm with polycarbonate operable door.
(1) = hole closed with watertight plug.
7 ELECTRICAL INSTALLATION
Connect the power wires and ground to the appropriate regulator terminals. To avoid dispersion currents, the motor
earth cable must be connected to the appropriate motor terminal ground. We recommend connecting to the machine’s
safety circuit any thermal motor protector in order to remove the control power supply and protect the motor with
maximum efficiency. The thermal motor protector may be otherwise connected directly to the I4 control card’s terminal.
If the length of the motor cable exceeds 10 m, we suggest using shielded cable. The control load can consist of

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several engines provided the sum of the rated currents of the motors is less than 20% of the rated current of the
control. We recommend not introduce any electromechanical device on the motor cable. If the control cable length
exceeds 3 m, we suggest using shielded cable, connecting the shield only on the regulator. We suggest don’t connect
the control 0 Volt to the Earth.
If the length of the power, motor and control cables exceeds 10 m, make sure they are separated by at least 0.3
metres to avoid creating a coupling effect.
If controls are set up in environment subject to electromagnetic disturbance, they should be housed inside a suitable
metallic enclosure. In order to prevent the formation of condensation and regular working also cold temperature it is
recommended you insure a constant power supply, avoiding turning it off continually.
All connections wires must resist to 80°C working temperature.
Avoid routing any electric wires near the copper coils of the filter, use the
suitable plastic support! Tighten all wires on control and power terminal
boards fully down, avoiding protrusion of the multi-stranded wire.
Do NOT touch the electronic equipment when the power line is on!
During voltage insulation tests disconnect the regulator power lines In/Out.
Use a true RMS tester to measure the current or voltage values
In the event that regulator operation failure could cause damage to objects or
physical injury, it is the responsability of the installer to add devises or
systems that protect against, or warn of, control failure.
Check the position of the voltage change jumper according to the supply voltage available, to the type of
control (see coding paragraph page 3, pos.3) and to the panoramic view of the corresponding card.
To protect the power line and the regulator, the installation technician must install extra-rapid semiconductor fuses
upstream of the power supply adequate for the load and with a value of I² t less than the value given in the table
below. If a differential circuit breaker is installed, it must be of the delayed action type.
XV300K8
…12
… 20
… 28
… 40
… 50
… 60
Section power cables
(mm²)
1,5
(Ls = 9)
2,5
2,5/4
6
10
16
16/25
(Ls =12)
(Ls = 15)
Section control cables
(mm²)
0,2÷1,5 (Ls = 9)
Line fuses (A)
10/16
16/20
25
35
50
63
80
Extrarapid fuses (A)
16
25
32
50
63
80
100
I²t (A²S) max energy c.c.
610
720
720
8000
15000
15000
80000
Ls = electrical wire peeling length (mm)
Power Supply
“-6” (230/400V)
230
400
“-8” (440/460V)
440
460
To connect wiring to the spring terminals, apply leverage with a screwdriver on the lever or on the rectangular hole to
open the terminal (see below the panoramic view cards). The power wires of the XV350K and XV360K regulators
must be crimped to form an eyelet (M6 hole) and the nuts (E10) tightened with a wrench.

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7.1 LED WARNING SIGNALS
DL1: yellow, starts to flash with input signal at minimum and increases the flashing frequency as the signal rises. It
goes on steady with signal = 100%. It follows the priority signal (see Basic Settings [BS] in the Factory Parameters
menu).
DL2: green, steady ON = power supply ON.
DL3: red, warning alarm ON
- 1 flash = power phase lost
- 2 flashes = external emergency
- 3 flashes = internal over-temperature
- 4 flashes = probe missing
- 5 flashes = stop for parameters programming or error settings.
DL4: green, flashing in modbus transmission.
DL5: red, flashing in modbus reception.
7.2 PANORAMIC VIEW CARDS

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8 WIRINGS
Term.
Description
Application
T1+
Serial RS485, Modbus RTU - master
Serial connection line to a Slave
controlled inverter/device
T1 -
Serial RS485, Modbus RTU - master
0V
Ground I/O
Mass I/O
I 4
External emergency input
Open immediately blocks the control. It
can be connected to the load temp.
protecting device/s
I 3
Start/Stop input
Programmable Start/Stop input
I 2
Limit Speed function input
Closed modifies the adjusting modes. It
is often used for the night silenced
operating
I 1
Direct/Reverse function input
Open enables the Cool1 cooling mode.
Closed enables the Heat or Cool2
heating mode (to be set on basic sett.
menu)
s0V
Ground I/O
Mass for the digital inputs
0.10
Analog input , type 0.10V (Ri = 40k Ω)
0..10V command for mode slave running
+V
12V power supply output = (max 30mA)
4..20mA pressure transducer power
supply
NC
Relay 1 closed norm. contact output
Programmable output. With standard
setting for Defect, the relay is enabled
(NO-COM eachother closed) and is
disabled by turning to the position
represented in the picture in emergency
case.
COM
Relay 1 common contact output
(1A-250V~/3A-30V=)
NO
Relay 1 open norm. contact output
+5V
5V power supply output = (max 15mA)
Ratiometric pressure transducers and
NTC power supply
IN 1
Analogical input 1, type 0,5…4,5V / ntc
(10 kΩ @25°C, β3435), (Ri = 10 kΩ) / pwm 5..15V
Ratiometric pressure transducers / NTC
sensor / PWM 100Hz type with variable
average value
0V
Ground I/O
Mass for analogical input
4.20
Analogical input 1, type 4…20mA (Ri = 100 Ω)
4..20mA pressure transducers
input,command for mode slave running

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9 CONTROL PANEL
The control panel visualizes in real time the inputs and outputs of the adjuster and allows setting the parameters. It is
provided with a back-illuminated LCD/OLED display and with four keys described below.
(UP) Goes to the previous visualization / increases a
(DOWN) Goes to the next visualization / decreases a
parameter
(ENT) Enters the menu and the parameters / confirms
the variation of a parameter
(ESC) Escapes from the menu and the parameters /
cancels a variation of parameter
10 STATE MENU
After the device is powered on the display visualizes the firmware versions of the device and the keyboard. Then, if
no error occurs, the first status window will appear, where temperatures or the pressure registered by input 1 are
visualised:
RUN in operating state
FLT in block state
RDY if in Stop state
The cycle used for the adjusting is visualized at the right bottom: CO (COOL) or HEA (HEAT) followed by the
number 1 or 2 for first or second cycle.
In this mode:
Press the key to slide the state menu downward;
Press the key to slide the state menu upward.
10.1 STATE WINDOW BOXES
Defines the output voltage/speed. The percentage value refers from 0 to
98% of power voltage
Defines the operating mode of the adjuster:
Chiller, Dry Cooler or Slave.
This is a display-only parameter. To edit it go to the basic settings menu
inside the “PREIMPO [IB]” menu
MODE
“chiller”
*
OUTPUT
67
%
DRY COOLER
Temp.1
21.3 °C
[CO1]
[RUN]
CHILLER
Press.1
20.3 bar
[CO1]
[RUN]

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INPUT 1: Defines the percentage of the IN1 input among the following
possible signals: 0..10V=, 4..20mA, pwm (100Hz type with variable average
value).
INPUT PWM: Defines the percentage of the control value detected in the
input dedicated to the PWM input signal with variable frecuency (available
only on demand).
The percentage value refers to the range defined in the basic settings, in the
PWM min and PWM max parameters.
INPUT MODBUS:Defines the value transmitted by the modbus RTU from an
external MASTER controller. The value is effective if included inside the
range limited by the parameters Min limit and Max limit of the motor
settings [IM]
Defines the state of the digital inputs of the terminals I1, I2, I3 and I4.
An asterisk will be displayed next to the digital terminals connected to the
terminal “0V”
Defines the state of the relay 1, relay 2 and of the output 3 (open collector).
For the relays 1 and 2 the asterisk means that they are powered and the
contacts NO and COM are eachother closed. For the output 3 the asterisk
means that the transistor is service.
The instructions 2 and 3 are displayed only with [S1 CARD OPTION]
Defines the software version of the adjuster
[ONLY IF REAL TIME CLOCK AVAILABLE ]
Displays the date and time of the variable weekly clock.
This is a display-only window box.
To set the clock go to the clock menu inside the “operating parameters”
Caution: in the event of warning alarm the state window box disappears and
an alarm box is displayed until the problem is solved.
Alarm warning example:
Warns about an alarm due to the control I4 open.
Other warnings refer to the alarms of: overheating and probe missing
10.2 LANGUAGE SETTING
From any screen of the operating menu press the key to visualize the language set.
To change the language press and move with the arrows until it
reaches the language to set among the following available languages:
English –Italian –German –French –Spanish –Russian [available only with
OLED display]
LANG.
English
*
ERROR!
external
*
WED 05.09.2012
1.00
VERSION
1.00
OUTPUT
-1 -2 -3*
INPUT
-1 -2 -3* -4
23
INPUT
%
SLAVE

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Press again the key to save the setting.
The asterisk at the right bottom indicates the language set.
Press to return to the sate menu
11 OPERATING PARAMETERS MENU - CHILLER
The operating parameters menu can be accessed from any visualization of the state menu, by pressing together the
keys + (hold the key pressed and press the key ).
The menu windows include the menu name and the corresponding
[identifying code].
The second line of the display is dotted
Press the key to access the parameters of the visualized menu;
Press the key to return to the state menu;
Press the key to go to the next menu;
Press the key to return to the previous menu.
11.1 PARAMETERS READING AND EDITING
The parameters windows display the name of the parameter, the
[identifying code] of the corresponding menu, the value of the parameter
and the unit of measure.
to go to the parameter below;
to go to the parameter above
To change the value of the parameter press , the arrow and the value of
the parameter in brackets mean that the system is in the parameter editing
mode, edit the value by pressing the following key:
to increase the value
to decrease the value
to save.
to return to the parameter
11.2 COOLING CYCLE PARAMETERS [CO1] -CHILLER
Pressure of the voltage/speed V1 point.
Min. 0 bar
Max. P2
Def. 20 bar
Pressure of the voltage/speed V2 point.
Min. P1
Max. P_MAX
Def. 24 bar
CHILLER
24.0
P2
[IC]
bar
CHILLER
20.0
P1
[IC]
bar
CHILLER
->(13.0)
P1
[IC]
bar
CHILLER
13.0
P1
[IC]
bar
CHILLER
[IC]
-----------------------
COOL 1 SET.
LANG.
-
*

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Maximum production pressure, above this the output is at the voltage
MotorMaxLim.
Min. P2
Max. Full Scale
Def. 25 bar
Voltage/speed of the pressure point P1.
Min. MotorMinLim
Max. V2
Def. 20%
Voltage/speed of the pressure point P2.
Min. V1
Max. MotorMaxLim
Def. 90%
11.3 HEATING CYCLE PARAMETERS [HEA] -CHILLER
Caution: The heating cycle can be replaced by a second cooling cycle [CO2] by changing the setting of the
parameter Second Mode.
Pressure of the voltage/speed V2 point.
Min. P_MAX
Max. P2
Def. 7 bar
Pressure of the voltage/speed V1 point.
Min. P1
Max. Full Scale
Def. 11 bar
CHILLER
11.0
P2
[IH]
bar
CHILLER
7.0
P1
[IH]
bar
CHILLER
90
V2
[IC]
%
CHILLER
20
V1
[IC]
%
CHILLER
25.0
P_MAX
[IC]
bar
CHILLER

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Maximum production pressure, below this the output is at the voltage
MotorMaxLim.
Min. 0 bar
Max. P1
Def. 5 bar
Voltage/speed of the pressure point P2.
Min. MotorMinLim
Max. V2
Def. 20%
Voltage/speed of the pressure point P1.
Min. V1
Max. MotorMaxLim
Def. 90%
12 OPERATING PARAMETERS MENU - DRY COOLER
The operating parameters menus can be accessed from any visualization of the state menu, by pressing together the
keys + (hold the key pressed and press the key ).
The menu windows include the menu name and the corresponding
[identifying code].
The second line of the display is dotted
Press the key to enter the parameters of the visualized menu;
Press the key to return to the state menu;
Press the key to go to the next menu;
Press the key to return to the previous menu.
DRY COOLER
COOL 1 SET.
-----------------------
[C1S]
CHILLER
90
V2
[IH]
%
CHILLER
20
V1
[IH]
%
CHILLER
5.0
P_MAX
[IH]
bar

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12.1 PARAMETERS READING AND EDITING
The parameters windows display the name of the parameter, the
[identifying code] of the corresponding menu, the value of the parameter
and the unit of measure.
to go to the parameter below;
to go to the parameter above
To change the value of the parameter press , the arrow and the value of
the parameter in brackets mean that the system is in the parameter editing
mode, edit the value by pressing the following key:
to increase the value
to decrease the value
to save.
to return to the parameter
12.2 COOLING CYCLE PARAMETERS [CO1] –DRY COOLER
Temperature of the voltage/V1 speed point.
Min. 0 °C
Max. T2
Def. 22,0 °C
Temperature of the voltage/V2 speed point.
Min. T1
Max. T_MAX
Def. 28,0 °C
Maximum production temperature, above this the output is at the voltage
MotorMaxLim.
Min. T2
Max. 95 °C
Def. 29,0 °C
Voltage/speed of the temperature point T1.
Min. MotorMinLim
Max. V2
Def. 20%
Voltage/speed of the temperature point T2.
Min. V1
Max. MotorMaxLim
Def. 90%
DRY COOLER
V2
90
%
[IC]
DRY COOLER
V1
20
%
[IC]
DRY COOLER
T_MAX
29.0
°C
[IC]
DRY COOLER
T2
28.0
°C
[IC]
DRY COOLER
T1
22.0
°C
[IC]
DRY COOLER
T1
->(12.0)
°C
[IC]
DRY COOLER
T1
12.0
°C
[IC]
CHILLER
CHILLER

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12.3 HEATING CYCLE PARAMETERS [HEA] –DRY COOLER
Caution: The heating cycle can be replaced by a second cooling cycle [CO2] by changing the setting of the
parameter Second Mode.
Temperature of the voltage/V2 speed point.
Min. T_MAX
Max. T2
Def. 22,0 °C
Temperature of the voltage/V1 speed point.
Min. T1
Max. 95 °C
Def. 24,0 °C
Maximum production temperature, over this the output is at the voltage
MotorMaxLim.
Min. 0 °C
Max. T1
Def. 21,0 °C
Voltage/speed of the temperature point T2.
Min. MotorMinLim
Max. V2
Def. 20%
Voltage/speed of the temperature point T1.
Min. V1
Max. MotorMaxLim
Def. 90%
DRY COOLER
V2
90
%
[IH]
DRY COOLER
V1
20
%
[IH]
DRY COOLER
T_MAX
21.0
°C
[IH]
DRY COOLER
T2
24.0
°C
[IH]
DRY COOLER
T1
22.0
°C
[IH]
Lim. max = Max lim.
TMax = MaxT
Temperatura = Temperature
CHILLER

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13 OPERATING PARAMETERS MENU - SLAVE
The operating parameters menus can be accessed from any visualization of the state menu, by pressing together
the keys + (hold the key pressed and press the key ).
The menu windows include the menu name and the corresponding
[identifying code].
The second line of the display is dotted
Press the key to enter the parameters of the visualized menu;
Press the key to return to the state menu;
Press the key to go to the next menu;
Press the key to return to the previous menu.
13.1 PARAMETERS READING AND EDITING
The parameters windows display the name of the parameter, the
[identifying code] of the corresponding menu, the value of the parameter
and the unit of measure.
to go to the parameter below;
to go to the parameter above
To change the value of the parameter press , the arrow and the value of
the parameter in brackets mean that the system is in the parameter editing
mode, edit the value by pressing the following key :
to increase the value
to decrease the value
to save.
to return to the parameter
->20
V1
[IC]
%
SLAVE
20
V1
[IC]
%
SLAVE
-----------------------
[IC]
SLAVE
IMPO.SLAVE

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13.2 WORKING PARAMETERS [IC] –SLAVE
Control signal of the Voltage V1/speed point.
Min. 10 %
Max. InMax
Def. 10%
Control signal of the Voltage V2/speed point.
Min. InMin
Max. 100%
Def. 95%
Voltage/speed of signal command IN.MINIM.
Min. MotorMinLim
Max. V2
Def. 20%
Voltage/speed of signal command IN.MAX
Min. V1
Max. MotorMaxLim
Def. 100%
14 SPEED LIMITS
This function is usally used to set a reduced maximum speed in certain operating cycles or a fixed speed detached
from the probe signals.
Caution : With the I2 digital input closed (the clock can be used optionally) this function automatically enables the
speed limit values (V1 and V2 Limit) on all the Master operating cycles (CHILLER and DRY COOLER) and the dispaly
visualizes .
Voltage that replaces V1, in the Master cycle used, when the I2 max
production contact is closed.
Voltage that replaces V1, in the Slave cycle, when V1 LIMIT>V1.
Min. MotorMinLim
Max. V2 Limit
Def. 18%
Caution:
18
V1 LIMIT
[LV]
%
100
V2
[IC]
%
SLAVE
20
V1
[IC]
%
SLAVE
95
MAX INPUT
[IC]
%
SLAVE
10
MIN. INPUT
[IC]
%
SLAVE

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COOL cycle: For V1 Limit > V1 of the active cycle, if the pressure/temperature is lower than P1/T1, the Voltage OUT
(Vout%) will be fixed at the value of the V1 Limit (see for example the below chart 2).
HEAT cycle: For V1 Limit > V1 of the active cycle, if the pressure/temperature is higher than P2/T2, the voltage OUT
(Vout%) will be fixed at the value of the V1 Limit (see for example the below chart 4).
Voltage that replaces V2, in the Master cycle used, when the max
productions I2 contact is closed.
Min. V1 Limit
Max. MotorMaxLim
Def. 65%
[WITH CLOCK OPTION]
Allows enabling the V1 and V2 limits in the Master operating cycles, not only
by closing the I2 contact, but also through the timer calendar set in the
Clock menu (page Error! Bookmark not defined.). Def. OFF
15 FACTORY PARAMETERS MENU
To access the factory parameters menu press , enter the number 0023
through the key , press to save
Caution: When entering this menu, all the analogic outputs of the device will be closed and the adjusting operation will
be stopped until the menu is closed.
0000
PIN
[PW]
Off
ENAB W/TIME
[LV]
*
65
V2 LIMIT
[LV]
%

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15.1 BASIC SETTINGS
Allows to load one of the settings based on the below tables. Select one
setting to speed the programming up.
Caution: previous settings will be overwritten; as for the Master pre-settings the values of SPD1 and SPD2 will be of
20% and 90% respectively.
CHILLER
2
Input
type
Scale
COOL
HEAT
P1
P2
MaxP
P1
P2
MaxP
MPRZM_34
0,5..4,5V
0..34,5 bar
13 bar
18 bar
19 bar
4 bar
6 bar
3 bar
MPRZM_45
0,5..4,5V
0..45 bar
20 bar
24 bar
25 bar
7 bar
11 bar
5 bar
MP420_30
4..20 mA
0..30 bar
13 bar
18 bar
19 bar
4 bar
6 bar
3 bar
MP420_50
4..20 mA
0..50 bar
20 bar
24 bar
25 bar
7 bar
11 bar
5 bar
DRY COOLER
Input type
COOL
HEAT
T1
T2
MaxT
T1
T2
MaxT
MTNTC_L
10kΩ @ 25°C (β3435)
22°C
28°C
29°C
22°C
24°C
21°C
MTNTC_H
10kΩ @ 25°C (β3435)
38°C
45°C
46°C
22°C
24°C
21°C
SLAVE
2
Input type
IN. MIN.
IN. MAX
V1
V2
S0_10
0..10V /Pwm
10%
100%
20%
100%
S4_20
4..20mA
10%
100%
20%
100%
S_MDB
Modbus RTU
S_PWM FV
Pwm FV
Allows selecting the motor adjusting curve.
Possible modes: Q= optimized for fans (Def.), L= linear
Allows forbidding the access to the “Operating parameters” menu.
ON (Def.): allows the access OFF: forbids the access
Defines the type of signal used.
4-20 mA (Def.): analogical signal 4-20mA;
0,5-4,5 V: analogical signal 0,5-4,5 V=
Defines the type of signal used.
0-10 V (Def.): analog signal 0..10V= , or pwm 100Hz type with variable
average value
Range:5...15V.
PWM fv: variable frequency pwm (do not use it).
modbus: Controlled by Master controller on RTU Modbus transmission
0..10
IN. TYPE
[IB]
*
SLAVE
CHILLER
4..20 mA
INPUT
TYPE
[IB]
*
ON
[IB]
*
USER ACTIV
Q
[IB]
*
REG. MODE
PRESET.
[IB]