Galileo MODC03B003 User manual

1
MANUAL
INPUT MODULE
INTRINSICALLY SAFE
IMGALILEO
MODC03B003
12/2020
Ver:06
Schedule Drawing- Do not change without certification agency /Notified Body approval.

2
MANUAL
INPUT MODULE
INTRINSICALLY SAFE
IMGALILEO
MODC03B003
12/2020
Ver:06
Schedule Drawing- Do not change without certification agency /Notified Body approval.

3
Foreword
Information in this document is subject to change without notice.
Galileo Technologies reserves the right to change or improve its
products and make changes to the content without obligation to
notify any person or organization of such changes or
improvements. ©2020 Galileo Technologies. All rights reserved.
Except as expressly provided herein, no part of this manual may
be reproduced for any purpose without the express prior written
consent of Galileo Technologies
GALILEO Technologies
Av. General Paz Provincia 265
(B1674AOA) Sáenz Peña
Buenos Aires
Argentina
Tel.: [phone]
Fax: [phone]
[email protected]m
www.galileoar.com

4
CONTENT
1. Introduction…………………………………………………………………………………………..5
1.1 Contents…………………………………………………………………………………………………………..5
1.2 Symbols Used…………………………………………………………………………………………………..5
2. Products type…………………………………………………………………………….………….6
3. Intended use………………………………………………………………………………….……...7
3.1 Technical Specification…………………………………………………………….….………….….......7
3.2 Technical Data ………………………………………………………………………………………………...7
4. Mounting…………………………………………………………………………………………......8
5. Equipment Installation and operation.…………………………………….………......9
5.1 Connection to the supply…………………………………………………………………………………9
5.2. Equipment operation……………………………………………………………………………………10
6. Fuse operation…………………………………………………………………………………....11
7. Cleaning and decontamination………………………………………………………......11
8. Equipment maintenance and service……………………………………………………12
8.1. Disconnecting circuits……………………………………………………………………………………13
8.2. Removing the device…………………………………………………………………………………….13
9. Handling and storage, and transportation...………………….……………..………14
10. Dimensions…………………………………………………………………………………………14
11. Datasheet…………………………………………………………………….………………….…15
12. Electrical/Electromechanical drawings ………………………………………………18
13. Electrical wiring drawings ………………………………………………………………….19
14. Customer Service……………………………………………………………………………….20

5
1. Introduction
1.1 Contents
This document contains information that you need in order to use your
product throughout the applicable stages of the product life cycle. These
can include the following:
• Delivery, transport, and storage
• Mounting and installation
• Operation
• Maintenance
• Troubleshooting
• Dismounting
1.2 Symbols Used
This document contains symbols for the identification of warning
messages and of informative messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your
actions. It is mandatory that you observe these warning messages for
your personal safety and in order to avoid property damage.
Depending on the risk level, the warning messages are displayed in
descending order as follows:

6
2. Product type
This manual summarizes the use of the following product:
Type MODC03B003 Input module intrinsically safe
Picture is only a reference
Warning!
Advertisement!
Read instruction's manual before operation.
Lisez des instructions avant l’opération

7
3. Intended Use
3.1.General
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
The product is intended to be installed in a suitable external enclosure.
The device is used in control and instrumentation technology for transfer of
signals such as 20mA and 10V standard signals.
The device has intrinsically safe circuits that are used for operating intrinsically
safe field devices in hazardous areas. Use the device only within the specified
ambient and operating conditions. The device is designed for mounting on a 35
mm DIN rail. The device is intended to be powered by 24V NEC class 2,
IEC/EN/UL 60950-1 LPS or IEC/EN/UL 601010-1 Limited Energy power source.
Indoor use only or outdoor use when installed in an external enclosure suitable
for outdoor use.
The device may be installed in the non-hazardous area.
3.2.Technical Specification
This Input Module intrinsically safe transfers Analog signals from
4-20mA, 0-10V, PT1000, DI. Convert to digital signal, store and send by protocol
Modbus RS485.
Each channel could be settable by a jumper to read any analog signal before
mentioned. The Input Module intrinsically safe prevents the transfer of
unacceptably high energy from the safe area into the hazardous area.
The zener diodes in the Zener Barrier are connected in the reverse direction. The
breakdown voltage of the diodes is not exceeded in normal operation. If this
voltage is exceeded, due to a fault in the safe area, the diodes start to conduct,
causing the fuse to blow. The Zener Barrier has a positive polarity.
3.3 Technical Data
Mechanical Specifications
Mounting
Snap-on 35 mm DIN mounting rail according to EN 60715
Housing Material
Polyamide (PA)
Dimensions
Dimension drawings refer to chapter Dimensions.
Degree of Protection
IP20 according to EN 60529
Connection
•Screw terminals for leads of up to a max. of 2 x 2.5 mm2 (2 x 14 AWG)
•Connection specifications refer to chapter Electrical wiring drawings.
• Observe the tightening torque of the terminal screws. The tightening
torque is 0.5 Nm to 0.6 Nm.
Ambient Temperature
-20 °C to +45 °C (-4 °F to +113 °F)
Storage Temperature
-25 °C to +70 °C (-13 °F to +158 °F)
Relative Humidity
max. 80 % without moisture condensation

8
4. Mounting
Do not mount the device in the dust hazardous area.
Maximum supply voltage 24Vdc.
Operation ambient temperature -20°C to +45°C.
Altitude up to 2,000 m.
Maximum relative humidity 80 % for temperatures up to 31 °C
decreasing linearly to 50 % relative humidity at 40 °C.
The device fulfills a degree of Protection IP20 according to EN 60529
The Zener Barrier is secured to a DIN rail using a tab and screw.
Additionally, a snap-in spring mounting system and can be removed with
an Allen to remove the screw and then a flat head screw driver by
inserting the screw driver head in steel tab on the DIN rail side and
pulling or prying to overcome the spring’s force.
Warning!
Advertisement!
The device must be use in PCB-vertical position!
L'appareil doit être utilisé en position verticale PCB!

9
5. Equipment installation and operation.
5.1Connections to the supply
Danger!
Danger to life from incorrect installation
Incorrect installation of cables and connection lines can compromise the
function and the electrical safety of the device.
• Observe the permissible core cross-section of the conductor.
• When using stranded conductors, crimp wire end ferrules on the
conductor ends.
• Use only one conductor per terminal.
• When installing the conductors, the insulation must reach up to the
terminal.
• Observe the tightening torque of the terminal screws.
• Supply voltage fluctuations up to ±10 % of the nominal voltage.
1. Ground the device. Use the DIN rail to ground connection of the
Zener barrier for grounding.
2. Connect the field circuit.
3. Connect the power supply & Modbus communication.

10
The DIN rail connector is integrated into the DIN rail. The bus connector
has 5 positions for energy supply and data transmission. It connects
several zener barrier modules, which are mounted on the DIN rail.
5.2 Equipment Operation
The barrier should be connected into the circuit while it is unpowered.
The voltage through the barrier under normal operation should not
exceed the rated Uo voltage. DC voltages and AC voltages of up to 1 MHz
pass through the barrier without attenuation. Any voltage above the
rated voltage is clamped to the rated voltage until the current exceeds
40 mA at which time an internal fuse is blown. Resistors are included in
the device to limit the available current in the Hazardous area. The
device protects the Hazardous area from high voltages and currents
which may cause sparks. The barrier must be connected using the proper
wires, wire gauge and codes as shown in the drawing on chapter
“Electrical wiring drawings” & “Electrical/Electromechanical drawings”.

11
6. Fuse operation
There is a fuse inside the Zener Barrier that is rated for 40 mA. If the
current at the input to output exceeds 40 mA by an Input or Output
short, the fuse will be blown. Since the fuse is underneath the epoxy, if it
is ever blown the Zener Barrier will need to be completely replaced. It
cannot be fixed and the fuse cannot be replaced.
7. Cleaning and decontamination
For cleaning, turn off the power to the unit and clean with a damp cloth.
Make sure that the unit is dry before turning the power back on.
DO NOT USE SOLVENTS.
Solvents should not be used, as they may harm the painted finish. Never
open the cover of the enclosure while power is applied to the system
due to the danger of explosion. Never connect or disconnect the wires
inside the enclosure with power applied. Always assume that the
hazardous atmosphere is present.

12
8. Equipment maintenance and service
Danger!
Danger to life from using damaged or repaired devices. Using a
defective or repaired device can compromise its function and its
electrical safety.
• Do not use a damaged or polluted device.
• The device must not be repaired, changed or manipulated.
• If there is a defect, always replace the device with an original device
from Galileo Technologies
Warning
Advertisement!
Substitution of components may impair intrinsic safety .
La substitution de composants peut nuire à la sécurité intrinsèque.
Warning
Advertisement!
Compliance with the following precautionary measures is vital to ensure safe
and reliable operation: Check all equipment packaging for transportation
damage. Report any damage to the transporter and to GALILEO Technologies
The equipment should be used only under the specified operating conditions
and must be protected against excessive dust and mechanical stress (shock,
vibration, etc.). Avoid high atmospheric humidity, which can lead to
condensation during changes in temperature.
Le respect des mesures de précaution suivantes est essentiel pour garantir un
fonctionnement sûr et fiable: Vérifiez que l'emballage de l'équipement n'est pas
endommagé pendant le transport. Signaler tout dommage au transporteur et à
GALILEO Technologies L'équipement doit être utilisé uniquement dans les
conditions de fonctionnement spécifiées et doit être protégé contre les
poussières excessives et les contraintes mécaniques (chocs, vibrations, etc.).
Évitez une humidité atmosphérique élevée, qui peut conduire à de la
condensation lors des changements de température.
Warning!
Advertisement!
CAUTION, HOT SURFACE, avoid directly contact while it is hot during
maintain.
ATTENTION SURFACE CHAUDE, éviter tout contact direct lorsqu'il est
chaud pendant la maintenance.

13
8.1 Disconnecting Circuits
1. Disconnect the field circuit.
2.Removing the Device.
8.2 Removing the Device
To disconnect the power supply & Modbus communication first
remove the M4 screw from tab with an Allen and then with a flat
head screw driver by inserting the screw driver head in steel tab
on the DIN rail side and pulling or prying to overcome the spring’s
force the module will be remove.
Picture is only a reference

14
9. Handling and storage, and transportation
If the instrument is to be stored or transported for an extended period of
time, please follow these safety precautions:
The temperature should be maintained between –20 °C and +70 °C [–4 °F
and 158 °F].
Contamination must be prevented from entering the unit.
The environment should be dry and as free from vibration as possible.
When not in use, the instrument should be stored in the original packing
materials or carrying case whenever possible.
10.Dimensions

15
11.Datasheet
Input Module Intrinsically Safe
Features
Assembly
• 4-channel Intrinsically Safe settable
• 24VDC supply
• Communication Modbus RS485
Function
This Input Module intrinsically safe transfers Analog
signals from 4-20mA, 0-10V, PT1000, DI. Convert to
digital signal, store and send by protocol Modbus
RS485.
Each channel could be settable by a jumper to read
any analog signal before mentioned
Connection

16
Technical data
General specification
Type
4-channel Intrinsically Safe settable Input
Electrical specification
Nominal resistance
330 Ω
Fuse rating
40mA
Main Input
Connection
Terminals 1-,2+ (Power)
Terminals 3A, 4B, 5- ( RS485 Modbus )
Supply voltage
24V
Rated Current
40mA
Hazardous area connection
Connection
Terminals 8, 11, 14, 17 Uo
Terminals 7, 10, 13, 16 In
Terminals 6, 9, 12, 15 GND
Electrical isolation
power input/output
safe electrical isolation acc. to IEC/EN 60079-11
Ambient conditions
Ambient temperature
-20 ... +45 °C
Storage temperature
-25 ... +70 °C
Relative humidity
max. 80 % , without condensation
Mechanical Specifications
Protection degree
IP20
Connection
Screw - Rising Cage Clamp
max. core cross-section 3 mm2
mass
approx. 85g
dimension
99mm x 114,5mm x 17,5mm
Mounting
on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with Ex-areas
Certification numbers
IECEx: US UL 20.0126X
ATEX: UL 20 ATEX 2452X
INMETRO: UL-BR 20.1478X
Group, category, type of protection
ATEX-II (1) [Ex ia Ga] IIB
IECEx- [Ex ia Ga] IIB
UL –[AEx ia Ga] IIB
cUL –[Ex ia Ga] IIB X
UL/cUL –Provides Intrinsically Safe Outputs for Class I, Division 1 Groups C
and D.
Voltage Uo
17.9V
Current Io
99mA
Power Po
321mW
Co Max
1.8uF
Lo Max
14.5mH

17
Co
1.5uF
Lo
2.0mH
Lo/Ro
583uH/ Ω
Maximum safe voltage Um
250 V (AC/DC)

18
12.Electrical/Electromechanical Drawings

19
13.Electrical wiring Drawings

20
14.Customer Service
For additional information or in case of problems, contact the Operations and Services
department.
[e-mail]
[phone]
[phone]
www.galileoar.com