iSMACONTROLLI ISMA-B-8I Powerful I/O Module Installation Guide

: September 3, 2024
: iSMACONTROLLI

Table of Contents

ISMA-B-8I Powerful I/O Module
Product Information
Specifications
Product Usage Instructions
FAQ

ISMA-B-8I Powerful I/O Module

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Product Information

Specifications

Power supply: Low voltage AC/DC 24V supply
(SELV or PELV)
Digital inputs: Dry contact
Interface: EN 60730-1 compliant
Address: Configurable
Baudrate: Not specified
Ingress protection rating: IP40 (for indoor
installation)
Temperature: Not specified
Relative humidity: Not specified
Connectors: Not specified
Dimension: Not specified
Mounting: Not specified
Housing material: Not specified

Product Usage Instructions

Warnings and Safety Instructions

Before installation and use, ensure the product is correctly
wired to prevent hazards like electric shock or fire. Follow the
specified power supply considerations and make sure to comply with
all safety standards mentioned in the manual.

Power Supply Considerations

Ensure the power supply is low voltage AC/DC 24V supply (SELV or
PELV) as per EN 60730-1 standards. Use a converter designed for
continuous operation to supply SELV or PELV circuits. Maintain
proper protective and simple separation of SELV systems to prevent
accidents.

FCC Compliance Note

This product complies with FCC regulations for Class B digital
devices. To prevent harmful interference, follow the installation
instructions carefully. If interference occurs, take measures like
using snubbers or varistors for AC voltage loads and freewheeling
diodes for DC voltage loads.

Wiring Instructions

When wiring the product, ensure that snubbers, varistors, or
freewheeling diodes are connected close to the coil to suppress
voltage spikes and protect the device from damage.

FAQ

Q: What should I do if the product causes interference with

radio or television reception?

A: If interference occurs, try turning the equipment off and on.
If the issue persists, consider using snubbers, varistors, or
following other measures mentioned in the manual to correct the
interference.

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ISMA-B-8I Installation Instructions

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iSMA-B-8I

Power supply Digital inputs Interface Address Baudrate Ingress protection rating
Temperature
Relative humidity Connectors Dimension Mounting Housing material

SPECIFICATION
DC: 24 V ± 20%, 0.4 W; AC: 24 V ± 20%, 0.6 VA 8x dry contact input, high-speed pulse counter up to 100 Hz RS485 half-duplex: Modbus RTU/ASCII, up to 128 devices on the bus Set by switch in range from 0 to 99 Set by switch in range from 4800 to 115200 bps
IP40 – for indoor installation
Operating: -10°C to +50°C (14°F to 122°F) Storage: -40°C to +85°C (-40°F to 185°F) 5 to 95% RH (without condensation) Separable, max 2.5 mm2 (18 12 AWG) 37x110x62 mm (1.45×4.33×2.44 in) DIN rail mounting (DIN EN 50022 norm) Plastic, self-extinguishing PC/ABS

TOP PANEL

DIGITAL INPUTS Dry contact

COMMUNICATION

POWER SUPPLY

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WARNING

TERMINALS OF THE DEVICE

· Note, an incorrect wiring of this product can damage it and lead

to other hazards. Make sure the product has been correctly wired

before turning the power ON.

· Before wiring, or removing/mounting the product, be sure to turn

the power OFF. Failure to do so might cause electric shock.

· Do not touch electrically charged parts such as the power

terminals. Doing so might cause electric shock.

· Do not disassemble the product. Doing so might cause electric

shock or faulty operation.

· Use the product within the operating ranges recommended in the

specification (temperature, humidity, voltage, shock, mounting

direction, atmosphere etc.). Failure to do so might cause fire or

faulty operation.

· Firmly tighten the wires to the terminal. Insufficient tightening of

the wires to the terminal might cause fire.

EN 60730-1 POWER SUPPLY CONSIDERATIONS

· Electrical safety in the building automation and control systems is essentially based on the use of extra low voltage which is strictly separated

from the mains voltage. This low voltage is either SELV or PELV according to EN 60730-1.

· Protection against electric shock is ensured by the following measures:

o limitation of voltage (low voltage AC/DC 24V supply, either SELV or PELV) o protective-separation of the SELV-system from all circuits other than SELV and PELV

o simple-separation of the SELV-system from other SELV-systems, from PELV- systems and earth

· Field devices such as sensors, status contacts and actuators connected to the low-voltage inputs and outputs of I/O modules must comply with

the requirements for SELV or PELV. The interfaces of field devices and other systems must also satisfy SELV or PELV requirements.

· When the supply of SELV or PELV circuits is obtained from supply mains of higher voltages it shall be provided by safety transformer or a

converter designed for continuous operation to supply SELV or PELV circuits.

FCC COMPLIANCE NOTE

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and

can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct

the interference by one or more of the following measures:

· Reorient or relocate the receiving antenna.

· Increase the separation between the equipment and receiver.

· Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

· Consult the dealer or an experienced radio/TV technician for help.

WIRING

· Line power cables must be routed with spatial separation from signal and data transmission cables.

· Analogue and digital signal cables should also be separated. · It is recommended to use shielded cables for analogue signals, cable shields should not be interrupted by intermediate terminals.

· The shielding should be earthed directly after the cable enters the cabinet.

· It is recommended to install interference suppressors when switching inductive loads (e.g. coils of contactors, relays, solenoid valves). RC

snubbers or varistors are suitable for AC voltage and freewheeling diodes for DC voltage loads. The suppressing elements must be connected as

close to the coil as possible

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