Pepperl+Fuchs H system interface module isolated barrier family

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a passive transistor for the safe area load. The module output changes state when the input signal changes state. The normal output state can be reversed with the selector switches on the side of the unit.

Line fault detection (LFD) can be selected or disabled via a selector switch.

During an error condition, the transistor reverts to its de-energized state and the LEDs indicate the fault. A separate fault output bus is available.

The fault conditions can be monitored via a Fault Indication Board.

This module mounts on a HiD Termination Board.

The HIC series of H system interface modules are generally 12.5mm wide, with the characteristics of single-loop integration and cabinet space saving; the HID series modules are 18mm wide and have high channel density.The H system interface modules in the Pepperl+Fuchs isolated safety barrier series mainly include two types of models: HIC and HID.

HIC series:

HIC2422 Solenoid Driver: This is a new type of universal analog signal isolation barrier with two freely configurable channels. It can be used as an intelligent transmitter power supply for two-wire transmitters and as a current driver for valve positioners. The module is 12.5mm wide and very compact, with a channel packing density of 6mm/channel, saving valuable space in the control cabinet. It has global certifications (ATEX, IECEx, UL), is suitable for ambient temperatures from -40°C to +70°C, and is certified up to SIL 2 (SC 3) according to IEC/EN 61508, and up to SIL 3 when used redundantly.

HIC2851 Solenoid Driver: Suitable for RTD, 2/3/4/5-wire thermal resistors, the corresponding single-channel safety barrier model is KFD2-RR-Ex1. It can also be used for active 1-5V signal input DCS/PLC, the corresponding model is KFD2-UT-Ex1-1, and PI, Bentley Nevada frequency sensors, the corresponding model is KFD2-VR4-Ex1.26, etc.

HiC2871A Solenoid Driver

1-channel isolated barrier, 24 V DC supply (loop powered), Output 45 mA at 12 V DC, Test pulse immunity, Up to SIL 3 acc. to IEC/EN 61508, Housing width: 12.5...

HiC2877 Solenoid Driver

1-channel isolated barrier, 24 V DC supply (bus or loop powered), Output 40 mA at 11.2 V DC, 55 mA current limit, Contact or logic control input, Entity...

HiC2883 Solenoid Driver

1-channel isolated barrier, 24 V DC supply (bus or loop powered), Output 45 mA at 12 V DC, Line fault transparency (LFT), Test pulse immunity, Up to SIL 3...

HiC2871 Solenoid Driver

1-channel isolated barrier, 24 V DC supply (loop powered), Output 45 mA at 12 V DC, Up to SIL 3 acc. to IEC/EN 61508, Housing width: 12.5 mm, Number of...

HiC2873 Solenoid Driver

1-channel isolated barrier, 24 V DC supply (bus or loop powered), Output 40 mA at 12 V DC, 55 mA current limit, Contact or logic control input, Entity

HID series:

HID2022: It is a model in the HID type safety barrier.

HID2026: Suitable for intrinsically safe applications, it can power 2-wire smart transmitters in hazardous areas, and can relay current to drive safe area loads. It supports two-way communication of smart transmitters, uses current modulation to transmit data, and uses voltage modulation to receive data.

HiD2872 Solenoid Driver

2-channel isolated barrier, 24 V DC supply (bus or loop powered), Output 40 mA at 12 V DC, 55 mA current limit, Contact or logic control input, Entity

HiD2876 Solenoid Driver

2-channel isolated barrier, 24 V DC supply (bus or loop powered), Output 40 mA at 11.2 V DC, 55 mA current limit, Contact or logic control input, Entity

HiD2822 Solenoid Driver

Introduction: 2-channel isolator, powered by 24V DC bus, supports dry contact or NAMUR input, can be used as a signal distributor (1 input and 2 outputs), each channel has 2 relay contact outputs, has line fault detection (LFD) function, and complies with SIL 2 of IEC/EN 61508 standard.

HiD2824 Solenoid Driver

Introduction: 4-channel isolator, also powered by 24V DC bus, supports dry contact or NAMUR input, has 4 relay contact outputs, has line fault detection function, and complies with SIL 2 of IEC/EN 61508 standard.

HiD2844 Solenoid Driver

Introduction: 4-channel isolated safety barrier, supply voltage is 24V DC (bus powered), with 1 NAMUR input and 1 passive input, 4 channels, safety integrity level (SIL) complies with SIL 2 of IEC 61508 standard, width is 18mm, height is 106mm, depth is 128mm.

Technical Data

General specifications

Signal type Digital Input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Supply

Connection SL1: 1a(-), 1b(-); 2a(+), 2b(+)

Rated voltage Ur 20.4 ... 30 V DC bus powered via Termination Board

Rated current Ir 15 mA at 24 V (per channel)

Power dissipation 0.35 W at 24 V (per channel)

Input

Connection side field side

Connection SL2: 5a(+), 5b(-); 1a(+), 1b(-); 3a(+), 3b(-); 7a(+), 7b(-)

Rated values acc. to EN 60947-5-6 (NAMUR)

Connectable sensor types potential free contact or proximity sensor

Switching point contact open 0.2 ... 1.2 mA, contact closed 2.1 ... 6.5 mA

Line fault detection breakage 0 ... 0.2 mA, short-circuit 6.5 mA ... maximum value

Output

Connection side control side

Connection SL1: 8a(+), 7a(-); 8b(+), 7b(-); 10a(+), 9a(-); 9b(+), 10b(-)

Rated voltage Ur 30 V

Rated current Ir 50 mA

Output one optocoupled transistor per channel

Signal level 1-signal: (external voltage) -1 V

0-signal: blocked output (off-state current max. 50 µA, typical 5 µA)

Fault indication output

Connection SL1: 6b

Output type open collector transistor (internal fault bus)