gefran IR-12 User manual

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80380A_MHW_IR-12/IR-24_11-2015_ENG
IR-12 / IR-24 MULTICHANNEL POWER CONTROLLER
INSTALLATION AND
OPERATION MANUAL
code 80380A - 11/2015 - ENG
INDEX
GRAPHIC SYMBOLS
To differentiate the type and importance of the information in this User Manual, graphic reference symbols are used to make such information
easier to interpret.
Indicates contents of sections, general instructions, notes, and
other points to which the reader’s attention needs to be called.
Indicates a particularly delicate situation that could affect
the safety or correct operation of the controller, or an
instruction that MUST be followed to prevent hazards.
Indicates a risk to the user’s safety due to high voltage at the
points indicated.
Indicates a suggestion based on the experience of
GEFRAN’s Technical Personnel that could be
especially useful under certain circumstances.
Indicates a reference to Detailed Technical
Documents available on the GEFRAN website
www.gefran.com.
1 Preliminary instructions 2
1.1 Profile
1.2 General description
1.3 Preliminary instructions
2 Installation and Connection 4
2.1 Electrical power supply
2.2 Notes on electrical safety and
electromagnetic compatibility
2.3 Recommendations for correct installation for
purposes of EMC
2.4 Dimensions
2.5 Installation
2.6 General description
2.7 Cleaning/checking or replacing the fan
2.8 Substitution of Internal Fuse
3 Electrical connections 13
3.1 Power connections
3.2 Functions of indicator leds
3.3 Control connectors
3.4 Connection example: power section
4 Installation of serial network 20
4.1 “AUTOBAUD SERIAL” sequence
5 Technical Characteristics 22
6 Technical-Commercial information 24
6.1 Accessories

280380A_MHW_IR-12/IR-24_11-2015_ENG
1.1 Profile
The compact, powerful, smart Power Controller IR-12/IR-24 is the
ideal solution for multichannel Infrared lamps heating systems.
In a unique, robust, “all in one” wall mounting cabinet are
available all the necessary components for the complete IR
lamps management for up to 60Kw electrical power.
The product is available in different models: IR-24 (with 24
outputs) , or IR-12 (with 12 outputs) and they are available
with communication RS485 MODBUS RTU or with Fieldbus
PROFINET. Each one of the 24 channels available can be
controlled independently by commands received on the
FieldBus or on the RS485 communication line, with Modbus
RTU protocol and baud rate selectable up to 57.600 bps.
The channels are able to provide 9Amps as maxixmum current
per channel on all the 24 channels contemporary.
The soft start phase, useful to grant a gradual heating of the
lamps and so a longer lifetime, is provided by phase angle
control.
When the lamp filament is warm, after the soft start phase, the burst
firing control takes place, with a typical cycle time of 2 seconds.
It can be configured also the Phase-angle (PA_mode) firing
steady-state control mode.
Using the zero crossing firing method is possible to avoid the
EMC emission and consequently evoiding to use expensive and
space consuming EMC filters.
IR-12/IR-24 is equipped with a local brain able to provide a
continuos monitoring of the power percentage provided by the
single channel in order to act a time-sharing distribution.
The result is a continuous balancing of the istantaneus absorption
on each phase of the power line, with big advantages in term of
current peaks reduction, increasing of the system power factor,
finally money saving for the machine/line users.
Another local control is performed locally by the IR-12/IR-24 in
order to compensate the line voltage variations, risulting in the
capability to grant a constant power to the lamps even when the
voltage power supply is not constant in the factory.
Complete exhaustive diagnostic functions are available for each
single channel as for the central unit.
The fault conditions of lamp out, fuse blown, scr in short circuit,
loss of phases, loss of 24Vdc power supply are all displayed by
common Leds and with a single diagnostic bit for each channel,
readable by Fileldbus or Serial Line.
The several trigger modes are software congurable and provide:
- BF: Burst-Firing, Zero crossing with optimized minimum cycle
time, for systems with low thermal inertia, medium-wave IR lamps
- HSC: Half Single Cycle Zero Crossing corresponds to Burst
Firing that manages single semi-cycles of conduction or stop
cycles, useful for short-wave IR lamps, reduces ickering and li-
mits generation of EMC noise on the power line
- PA: Phase-Angle, load control using phase angle SCR ring
modulation control
- Soft Start Ramp: With phase angle control to reduce current
peaks at ring .
IR-12/IR-24 runs complete diagnostics of current, voltage, power,
and temperature levels:
Current Diagnostics:
- Total load interrupt alarm
- Alarm for SCR in short circuit
Voltage Diagnostics:
- Alarm for absence of phase
Fuse diagnostics:
- Automatic detection of blown fuse (for every channel)
Temperature Diagnostics:
- Alarm for over temperature of power module
Power control with Soft start ramp limits load, optimizes the con-
sumptions and increases the load operating duration.
NOTE: In PA_mode the diagnostic Alarms Load-Open and
Fuse_open are detected for SCR power ring higher than 40%
NOTE: In PA_mode the diagnostic Alarm SSR-SHORT is de-
tected when SCR power ring is P=0% or when his channel is
disabled
The IR-12/IR-24 can be connected serially by means of an
RS485 with Modbus RTU protocol or by Fieldbus PROFINET in
order to control the power outputs, the load state, and the device
from an HMI or PLC.
The section contains general information and
warnings to be read before installing, configuring and
using the controller.
1.2 General DescriPtion
IR-12/IR-24 is multizone advanced solid state power unit,
extremely compact, equipped with different functions; it offers
an exclusive combination of performance, reliability, and
flexibility.In particular, this new line of Gefran controllers is the
ideal solution for sectors demanding high performance and
continuity
of service, such as:
• IR welding
• Thermoforming
• Blowing
• Hot runners for injection presses
• Texturizing of fibers
• Heat treatment furnaces
• Woodworking machines
• Glass tempering furnaces.
IR-12/IR-24 is used for the power control of single-phase (phase
neutral) loads, including resistive loads with high and low
temperature coefficient, short wave IR lamps.
Attention: the description of programming and
configuration parameters are contained in
the “Programming and configuration” manual,
downloadable from the website www.gefran.com
1 • PRELIMINARY INSTUCTIONS

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80380A_MHW_IR-12/IR-24_11-2015_ENG
1.3 Preliminary instruction
Read the following preliminary instructions before
installing and using the IR-12/IR-24 modular power
controller.
This will make start-up faster and avoid some
problems that could be mistakenly interpreted as
malfunctions or limitations of the controller.
Immediately after unpacking the unit, check the order code
and the other data on the label attached to the outside of the
container.
Write them on the following table.
This data must always be available and given to Gefran
Customer Care representatives are available if technical service
is needed. Check that the controller is in perfect condition,
was not damaged during shipment, and that the package also
contains the “Configuration and Programming” manual.
Immediately report any errors, shortages, or signs of damage to
your Gefran dealer.
Check that the order code matches the configuration requested
for the intended application by consulting the section:
“Technical-Commercial Information.”
See paragraph 2.1 “ Dimensions and mounting” before installing
the IR-12/IR-24 on the machine/host system control panel.
To configure the PC use the SW Gefran GF-Express kit and
the relative connection cable. For the order code, see Section:
“Technical-Commercial Information”.
Users and/or system integrators who want detailed
information on serial communication between
Gefran standard and/or industrial PCs and Gefran
Programmable Instruments can access Technical
Reference Documents on serial communication and
MODBus protocol, etc., in Adobe Acrobat format on
the Gefran website www.gefran.com:
• Serial Communication
• MODBus Protocol
Before calling Gefran Customer Care in case of assumed
malfunctions, please see the Troubleshooting Guide in the
“Maintenance” section and, if necessary, the F.A.Q. (Frequently
Asked Questions) section on the Gefran website
www.gefran.com
SN ............................... (Serial number)
CODE ......................... (Product code)
TYPE........................... (Order code)
SUPPLY...................... (Power Supply)
VERS. ......................... (Firmware version)

480380A_MHW_IR-12/IR-24_11-2015_ENG
This section contains the instructions needed for
correct installation of IR-12/IR-24 controllers on the
machine/host system control panel and for correct
connection of the power supply, inputs, outputs and
interfaces.
CAREFULLY READ THE FOLLOWING WARNINGS
BEFORE INSTALLING THE INSTRUMENT!
Disregard of such warnings could create
electrical safety and electromagnetic
compatibility problems, as well as void the
warranty.
2.1 Electrical Power suPPly
• the controller DOES NOT have an On/Off switch: the user
must install switch/isolator conforming to safety requisites (CE
mark) to cut off the power supply up-line of the controller.
The switch must be installed in the immediate vicinity of the
controller in easy reach of the operator.
A single switch can be used for multiple devices.
* the earth connection must be made with a specific lead.
• if the product is used in applications with risk of harm to
persons or damage to machines or materials, it MUST be
equipped with auxiliary alarm devices.
It is advisable to provide the ability to check for tripped alarms
during regular operation.
DO NOT install the product in rooms with hazardous
(inflammable or explosive) atmosphere; it may be connected
to elements that operated in such atmosphere only by means
of appropriate interfaces that conform to current safety
standards.
2.2 Notes on electrical safety anD
electromaGnetic comPatibility:
2.2.1 CE MARKING: EMC
(electromagnetic compatibility) conformity
in compliance with Directive 2004/108/CE and following
modifications.
Series IR-12/IR-24 controllers are mainly intended for
industrial
use, installed on panels or control panels of production
process machines or systems.
For purposes of electromagnetic compatibility, the most
restrictive generic standards have been adopted, as shown
on the table.
2.2.2 LV (low voltage) conformity
in compliance with Directive 2006/95/CE.
EMC conformity has been verified with the
connections indicated on table 1.
2.3 RecommenDations for correct installation
for PurPoses of EMC
2.3.1 Instrument power supply
• The power supply for the electronic instrumentation on the
panels must always come directly from a cut-off device with
fuse for the instrument part.
• Electronic instrumentation and electromechanical power
devices such as relays, contactors, solenoids, etc., MUST
ALWAYS be powered by separate lines.
• When the power supply line of electronic instruments is
heavily disturbed by switching of thyristor power groups or
by motors, you should use an isolation transformer only for
the controllers, grounding its sheathing.
• It is important for the system to be well-grounded:
- voltage between neutral and ground must not be > 1V
- Ohmic resistance must be < 6Ω;
• If the grid voltage is highly unstable, use a voltage stabilizer.
• In proximity of high-frequency generators or arc welders,
use adequate grid filters.
• The power supply lines must be separate from instrument
input and output lines.
•Supply from Class II or from limited energy source
2.3.2 Input and output connections
Before connecting or disconnecting any connection, always check
that the power and control cables are isolated from voltage
Appropriate devices must be provided: fuses or automatic
switches to protect power lines.
The fuses present in the module function solely as a protection
for the IR-12/IR-24 semiconductors.
• Connected outside circuits must be doubly isolated.
• To connect analog inputs, strain gauges, linears, (TC, RTD),
you have to:
- physically separate the input cables from those of the
power supply, outputs, and power connections.
- use braided and shielded cables, with sheathing grounded
at a single point.
2.3.3 Installation notes
Use the extra-rapid fuse indicated in the catalogue according to
the connection example equipped.
- Moreover, the applications with solid-state units require a safe-
ty automatic switch to section the load power line.
To ensure maximum reliability, the device must be correctly
installed in the panel in such a way as to obtain adequate heat
exchange between the heat sink and the surrounding air under
conditions of natural convection..
Fit the device vertically (maximum angle 10° to the vertical
axis) see gure 3
• Vertical distance between a device and the panel wall
>100mm
• Horizontal distance between a device and the panel wall at
last 20mm
• Vertical distance between a device and the next one at last
300mm.
• Horizontal distance between a device and the next one at last
20mm.
Check that the cable holder runners do not reduce these di-
stances, in this case t the cantilever units opposite the panel
so that the air can ow vertically on the dissipator without any
obstacles.
2 • INSTALLATION AND CONNECTION

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80380A_MHW_IR-12/IR-24_11-2015_ENG
• dissipation of device thermic power with effects on installation
room temperature.
• thermal power dissipation with limits on installation room tem-
perature.
• requires exchange with external air or an air conditioner to tran-
sfer dissipated power outside the panel.
• maximum limits of voltage and derived power of transients on
the line, for which the solid state power unit contains protective
devices (based on the model).
• presence of dispersion current in non-conducting state (current
of a few mA due to RC Snubber circuit to protect the thyristor).
GEFRAN S.p.A. assumes no liability for any da-
mage to persons or property deriving from tam-
pering, from incorrect or improper use, or from
any use not conforming to the characteristics of
the controller and to the instructions in this User
Manual.
AC semiconductor controllers and contactors for non-motor loads EN 60947-4-3
ESD immunity EN 61000-4-2 4 kV contact discharge
8 kV air discharge
RF interference immunity EN 61000-4-3 /A1 10 V/m amplitude modulated
80 MHz-1 GHz
10 V/m amplitude modulated
1.4 GHz-2 GHz
Conducted disturbance immunity EN 61000-4-6 10 V/m amplitude modulated
0.15 MHz-80 MHz
Burst immunity EN 61000-4-4 2 kV power line
2 kV I/O signal line
Surge immunity EN 61000-4-4/5 Power line-line 1 kV
Power line-earth 2 kV
Signal line-earth 2 kV
Signal line-line 1 kV
Magnetic elds immunity Test are not required.
Immunity is demonstrated by
the successful completion of
the operating capability test
Voltage dips, short interruptions and voltage immunity tests EN 61000-4-11 100%U, 70%U, 40%U,
Table 2 EMC Immunity
Table 1 EMC Emission
AC semiconductor controllers and contactors for non-motor loads EN 60947-4-3
Emission enclosure
compliant in ring mode single cycle and phase angle if external
lter tted
EN 60947-4-3
CISPR-11
EN 55011
Class A Group 2
Safety requirements for electrical equipment for measurement,
control and laboratory use
EN 61010-1
UL 508
Table 3 LVD Safety
ATTENTION
This product has been designed for class A equipment. Use of the product in domestic environments may cause radio
interference, in which case the user may be required to employ additional mitigation methods.
The CE declaration of conformity is available on request

680380A_MHW_IR-12/IR-24_11-2015_ENG
INSULATION DIAGRAM
220-254Vac
50/60Hz
CONTROL LOGIC
CPU
LOGIC IN1,IN2,IN3,IN4
OUT1, ...,OUT4
LOGIC
AC / DC
+/-5V
AC / DC
5V
Low voltage
+5Vdc, 3,3Vdc
CONTROL LOGIC / CP
U
High Voltage 400-480Vac
Three-phase
+ Neutral
Low
Voltage 5Vdc
Serial PORT
SCR OUTPUT
AC / DC
5Vdc
OUT
L1.1 to L1.8
SCR
9 Arms
AC / DC
+24Vdc
Low voltage 24Vdc
FAN
L1,L2,L3
VOLTAGE
MEASURE
External I/O
voltage
24Vdc
FAN1 FAN2
NTC over
temperature
FUSE
L1.1
to
L1.8
FUSE
L2.1
to
L2.8
FUSE
L3.1
to
L3.8
SSR, FUSE, LOAD diagnostic
Serial PORT MODBUS RS485 or FIELDBUS
OUT
L2.1 to L2.8
SCR
9 Arms
OUT
L3.1 to L3.8
SCR
9 Arms

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80380A_MHW_IR-12/IR-24_11-2015_ENG
2.4 Dimensions
Fastening can be done with five screw M6. See figures 1 and 2.
All dimensions are expressed in mm.
Figure 1a - Dimensions of Models IR-24 and IR-12 with MODBUS RTU communication
Figure 1b - Dimensions of Models IR-24 and IR-12 with Fieldbus communication

880380A_MHW_IR-12/IR-24_11-2015_ENG
Figure 3
2.5 installation
Attention: respect the minimum distances shown in figure 3 to provide adequate air circulation.
2.4.1 TEMPLATE DIMENSIONS
Figure 2
M6

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80380A_MHW_IR-12/IR-24_11-2015_ENG
2.6 General DescriPtion
Figure 4a - Frontal view of IR-24 and IR-12 with MODBUS communication
1. Diagnostics LED
2. Modbus address (Rotary switch)
3. I/O LEDs
4. I/O connector
5. Modbus serial connector
6. CPU power supply (230VAC) 400-480VAC line
7. Line power terminals 400-480VAC (3F + N, Ground)
8. Fuse holders with protection fuses (24 for IR24, 12 for IR12)
9. Output connectors (to load)
10.Cooling fan unit

10 80380A_MHW_IR-12/IR-24_11-2015_ENG
Figure 4b - Frontal View of IR-24 and IR-12 with Fieldbus PROFINET
1. Diagnostics Leds
2. Ethernet port ETH0, ETH1
3. I/O LEDs
4. Ethernet port ETH0, ETH1 status Leds indication
5. I/O connector
6. CPU power supply (230VAC)
7. Line power terminals 400-480VAC (3F + N, Earth)
8. Fuse holders with protection fuses (24 for IR24, 12 for IR12)
9. Output connectors (to load)
10.Cooling fan unit

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80380A_MHW_IR-12/IR-24_11-2015_ENG
2.7 cleaninG/checkinG or rePlacinG the fan
Figure 5
Fan suppy plug connector
Removable Fan Unit
Fan Unit fixing screws
NOTE: For IR-12 models, the fan Unit is provided with only one fan.

12 80380A_MHW_IR-12/IR-24_11-2015_ENG
PERIODIC CLEANING
Every 6-12 months (depending on the dust level of the installation) blow a compressed air jet downward through
the upper rectangular cooling grilles (on the side opposite the fan).
This will clean the internal heat dissipater and the cooling fan.
IN CASE OF OVERHEAT ALARM
ATTENTION:
Before and during the inspection/maintenance cut power to the fan controller and verify that the system is
isolated for operator safety.
If periodic cleaning does not eliminate the problem, do as follows
a Remove the cooling fan unit by unscrewing the 4 screws and sliding off the connector.
bDisconnect the fan connector from the panel
cCheck the condition of the two fans
d Clean or replace the fans
Attention: check that the arrow (on the fan indicating the direction of air flow is pointing to the heat sink
eInsert the connector into the panel
f Insert the fan unit and fasten it with the 4 screws
gPower up the device and check fan rotation when at least one load is on.
2.8 rePlacinG the internal fuses
ATTENTION:
Before and during the inspection/maintenance cut power to the fuses controller and verify that the system is
isolated for operator safety.
- Open the front cover (magnetic release)
- This exposes the fuses
- Pull the fuse holder outwards (remove the fuse)
- Insert the new fuse.

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80380A_MHW_IR-12/IR-24_11-2015_ENG
3.1 Power connections
RECOMMENDED WIRE GAUGES
3 • ELECTRICAL CONNECTIONS
Table 4
MODEL
TERMINAL /
CONNECTOR
CABLE SECTION TERMINAL TYPE TIGHTENING TORQUE /TOOL
IR24, IR12 L1, L2, L3 25-35 mm²
4-2 AWG Tip / Stripped wire 4 ...4,2 Nm / Flat-head screwdriver
IR24, IR12 PE 16-25 mm²
6-4 AWG Tip / Stripped wire 2 ...2,2 Nm / Flat-head screwdriver
IR24, IR12 N 1-16 mm²
17-6 AWG Tip / Stripped wire 0,5 ...2,2 Nm / Flat-head screwdriver
IR24, IR12 X1, X2, X3 2,5-4 mm²
14-10 AWG Tip / Stripped wire 0,5 ...0,6 Nm / Flat-head screwdriver
IR24, IR12 X7 1,5-2,5 mm²
16-14 AWG Tip / Stripped wire 0,5 ...0,6 Nm / Flat-head screwdriver
Defines address of module 00...99
(Only for models with MODBUS RS485 communication, please refer to figure N. 4a)
Table 6 Description of Rotary Switches
Switch Description
x10
x1
LED DESCRIPTION COLOR
PW
W/D
CPU supply voltage ON green
Watch Dog tripped, CPU blocked yellow
L1
L2
L3
L1 phase voltage ON green
L2 phase voltage ON green
L3 phase voltage ON green
ALR One or more alarm conditions present red
TX
RX
Status of serial line transmission green
Status of serial line reception green
OK
+24
Digital outputs functioning correctly green
24V voltage ON for digital I/Os green
I1 Status of digital input I1 green
I2 Status of digital input I2 green
I3 Status of digital input I3 green
I4 Status of digital input I4 green
O1 Status of digital output O1 green
O2 Status of digital output O2 green
O3 Status of digital output O3 green
O4 Status of digital output O4 green
3.2 functions of inDicator leDs
Description of LEDs
Table 6

14 80380A_MHW_IR-12/IR-24_11-2015_ENG
3.3 control connector
Connection schema X4 - Connector Digital I/O
PIN NAME DESCRIPTION
1 I1 Digital input I1
2 I2 Digital input I2
3 I3 Digital input I3
4 I4 Digital input I4
5 O1 Digital output O1
6 O2 Digital output O2
7 O3 Digital output O3
8 O4 Digital output O4
9 +24V +24VDC power supply digital outputs
10 0V GROUND power supply digital inputs
and outputs
CONNECTOR X4
(CONTROL)
0,2 - 2,5mm224-14AWG
0,25 - 2,5mm223-14AWG
3.3.1 CONNECTOR X4 - DIGITAL I/O
Figure 6
Figure 7
Table 7
Table 8
1
2
3
4
5
6
7
8
9
10
LOAD1
LOAD2
LOAD3
LOAD4
24Vdc
1
2
3
4
5
6
7
8
9
10
IN1
IN2
IN3
IN4
+
-

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80380A_MHW_IR-12/IR-24_11-2015_ENG
3.3.2 CONNECTOR X5,X6 - modbus RS485
Figure 8
Cable type: Shielded
X4, X5 connector
D-SUB 9 pin male Nr. Pin Name
1
2
3
4
5
6
7
8
9
Descrption
1 2 3 4 5
6 7 8 9
For last module connected to serial
line.
Connect the termination resistor
as shown in the figure (inside the
connector).
Note
Data line
Data line
220
Pin 7
(+Tx / Rx)
Pin 8 (-Tx / Rx)
ohm
n.c.
+ Tx/Rx
Terra
- Tx/Rx
GND
n.c.
+ Tx/Rx
- Tx/Rx
n.c.
Not used
RS485 serial (A+)
Ground (cable shield)
RS485 serial (B-)
Serial GROUND
Not used
(For termination)
(For termination)
Not used
3.3.3 X7 CONNECTOR - 230VAC power supply
Figure 9
0,2 - 2,5mm224-14AWG
0,25 - 2,5mm223-14AWG
Table 9
1
2
1
2
AC Supply
AC Su
pply
230V
ac

16 80380A_MHW_IR-12/IR-24_11-2015_ENG
3.4 connection examPle: Power section
Connection example: IR-24 connected to 24 loads
Figure 10a

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80380A_MHW_IR-12/IR-24_11-2015_ENG
Connection example: IR-12 connected to 12 loads
Figure 10b

18 80380A_MHW_IR-12/IR-24_11-2015_ENG
Example of operation in HSC mode with power at 33 and 66%.
Firing modes
The IR24- IR12 power controllers have the following control modes:
- modulation by variation of phase angle
- modulation by variation of number of conduction cycles with “zero crossing”, Burst Firing or Half Single
Cycle firing
1 Burst Firing mode
BF -with variable cycle time
This mode manages power on the load by means of a series of conduction (ON) and non-conduction (OFF)
cycles. The ratio of the number of ON cycles to the number of OFF cycles is proportional to the power level to
be supplied to the load.
Repetition period CT is kept to the minimum for all power levels.
2 Optimized Burst Firing Mode
This mode manages power like BF, but optimizes conduction cycles among the various channels by shifting
them in time in order to limit simultaneous conduction in all channels. A parameter defines the minimum
number of conduction cycles settable from 1 to 10, in the following example, the parameter = 2.
Figure 11
Example of operation in BF mode with 50% power
3 Half Single Cycle Mode
HSC - Half single cycle
This mode corresponds to Burst Firing that manages ON and OFF half-cycles. It is useful for reducing the
flickering of filaments with short/medium-wave IR lamp loads. With these loads, to limit operating current with
low power, it is useful to set a minimum power limit (for example, Lo.p = 10%).
Figure 12
Advanced single-cycle
P = 33% P = 66%

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80380A_MHW_IR-12/IR-24_11-2015_ENG
4 Phase angle (PA)
This mode controls power on the load via modulation of trigger angle q
Example: if power to be transferred to the load is 100%, q = 180°
or if power to be transferred to the load is 50%, q = 90°
Figure 13
Resistive load Inductive load
ADDITIONAL FUNCTIONS
Softstart
This type of start can be enabled to limit peak currents in IR lamps with initially cold filament.
Figure 14
Example of firing ramp with phase Soft-Start

20 80380A_MHW_IR-12/IR-24_11-2015_ENG
4 • INSTALLATION OF THE SERIAL PORT
NOTE: - Chapter 4.0 and 4.1 are refered only to products with MODBUS communication.
- For products with Fieldbus communication please refer to specific Fieldbus SW Manual
A network typically has a Master that “manages” communication by means of “commands,” and Slaves that carry out these
commands.
IR Control controller modules are considered Slaves to the network master, which is usually a supervision terminal or a PLC.
It is positively identified by means of a node address (ID) set on rotary switches (tens + units).
A maximum of 99 IR-12/IR-24 controller, modules can be installed in a serial network, with node address selectable from “01”
to “99” IR-12/IR-24 controller modules have a ModBus serial
The MODBUS RTU port 1 has the following factory settings (default):
The following procedures are indispensable for the Modbus protocol.
Set the rotary switch at “0+0” for AutoBaud function
Parameter Default Range
ID 11...99
BaudRate 57.6Kbit/s 1200...57600bit/s
Parity None Odd/Even/None
StopBits 1-
DataBits 8-
Parameter
Position
rotary switches
tens unit
AutoBaud 0 0 Allows setting of the
correct BaudRate value
automatically detecting
the master transmission
frequency
PLC / HMI IR Control
with RS485
RS485 MODBUS DB9 Cable