IGM MRBP.424321.001UM Manuel utilisateur

CO Ltd. I G M -D e te c to r

Address: 27 Engels Prospect,

building 5, litera A

Saint-Petersburg

194156, Russia,

Tel: 8 (800) 234-66-90

Website: www.igm-pribor.ru

E-mail: support@igm-pribor.ru

EMI-SSD-1M CONTROL UNIT

USER MANUAL

MRBP.424321.001UM

Saint-Petersburg

2020

C on t en t s

1 Description and operation ........................................................................................................... 4

1.1 Intended use .......................................................................................................................................4

1.2 Application scope................................................................................................................................4

1.3 Technical specifications ......................................................................................................................5

1.4 Construction and overall dimensions .................................................................................................6

1.5 Device and principle of operation.......................................................................................................9

1.6 Marking and sealing..........................................................................................................................10

1.7 Packaging ..........................................................................................................................................11

2 Safety precautions..................................................................................................................... 12

3 Correct use................................................................................................................................ 13

3.1 Operating hints .................................................................................................................................13

3.2 Operating limits.................................................................................................................................13

3.3 Preparation .......................................................................................................................................13

3.4 Getting started..................................................................................................................................15

4 Maintenance service ................................................................................................................. 17

4.1 General hints.....................................................................................................................................17

4.2 Maintenance routine ........................................................................................................................17

5 Storage and transportation........................................................................................................ 19

6 Utilization ................................................................................................................................. 19

Appendix A Pin assignment .......................................................................................................... 20

Appendix B Connection diagram................................................................................................... 22

Appendix C Modbus RTU Protocol description.............................................................................. 25

I n tr od uc t io n

MRBP.424321.001UM Version 1.0 27/01/2020

This user manual (UM) is intended to describe design, principle of operation and mainte-

nance service of control unit EMI SSD-1M (EMI SSD-1M). Mounting, tuning and maintenance service

of EMI SSD-1M must be carried out by suitably trained specialists after having studied this UM.

This UM is applicable to all current modifications of EMI SSD-1M.

Warning!

Study this UM before mounting and operating of EMI SSD-1M.

Operating not in accordance with the requirements of this UM may lead to the

failure of the control unit.

EMI SSD-1M identification when ordering:

EMI-SSD-1M-AB

EMI –manufacturer IGM –detector

SSD-1M –model

A –LoRa: 1 –present, 0 –not present

B –HART: 1 –present, 0 –not present

Example identification: EMI-SSD-1M-01 –manufacturer IGM-detector, model SSD-1M, with built-in

HART modem and without built-in LoRa Wi-Fi unit.

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MRBP.424321.001UM Version 1.0 27/01/2020

1Description and operation

1.1 Intended use

1.1.1 EMI-SSD-1M is a multiple-line controller intended for:

-continuous analogue and digital signal reception from gas detectors;

-processing and storage of received data;

-data transferring to a higher lever system;

-external circuits switching;

-audio and light alarm in case of set threshold exceeding.

1.1.2 EMI SSD-M1 can be used as control unit within control system EMI-M1.

1.2 Application scope

1.2.1 Oil and gas fields, oil and gas processing plants, oil and gas storages, chemical indus-

tries etc.

Typical facilities demanding gas pollution control:

-raw materials loading/unloading areas;

-raw materials and manufactured goods storages;

-pump stations;

-compressor stations;

-working areas of plants etc.

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1.3 Technical specifications

1.3.1 EMI-SSD-1M technical specifications are shown in table 1.

Table 1

Specification

Value

Supply voltage

12-32 VDC

Power consumption

2,5 W (up to 120 W while supplying gas detectors from EMI-

SSD-1M)

Control

membrane keypad (8 buttons)

Data storage ability

plug-in SD card

Input signals:

Input signal type

-RS-485, Modbus (1-32 detectors);

-4-20 мА (1-8 detectors);

-Bell 202 Current, Hart-6 (1-8 detectors).

Inaccuracy

limit of permissible reduced error of current signal meas-

urement (4 - 20) mA:

-+15°С…+35°С = ± 0,2%;

--10°С…+15°С and +35°С…+50°С = ± 0,5%.

Output signals:

Digital output interface

RS-485 Modbus

Wireless communication standards

- Bluetooth 2.0

-LoRa

Relay (discreet) outputs

3 relays: Threshold 1, Threshold 2, Emergency.

16 Аat 250 WAC, 16 Аat 24 WDC

Indication

OLED display, 2 LEDs: alarm, work

Sound alarm

85 dB

1.3.2 Device elements isolation

Galvanically isolated elements scheme and galvanic insulation strength are shown on fig.1. In-

sulation strength value is stated for normal climatic conditions test, action time –1 minute.

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EMI-SSD-1M

Supply

1500 W

Microcontroller

Display

Relay

2500 W

RS-485

2500 W

Keypad

RS485

2500 W

channel 1

Current

loop 4-

20mA

2500 W

SD card

channel 2

channel 3

Bluetooth

channel 4

channel 5

LORA

channel 6

channel 7

channel 8

HART

Figure 1 EMI-SSD-1M elements isolation

Notice:

- EMI-SSD-1M galvanically isolated elements graphic symbol.

1.4 Construction and overall dimensions

1.4.1 Structurally, the device is made in a plastic case designed for fixing on a DIN rail. The

housing has a stepped shape.

EMI-SSD-1M overall dimensions are shown on fig. 2 and 3.

EMI-SSD-1M overview is shown on fig. 4 and 5.

EMI-SSD-1M weight –500 gr.

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Figure 2 –EMI-SSD-1M w/o LoRa antenna overall dimensions

Figure 3 –EMI-SSD-1M with LoRa antenna overall dimensions

Notice:

Antenna is installed depending of LORA radio module presence.

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Figure 4 –EMI-SSD-1M front view

Figure 5 –EMI-SSD-1M back view

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MRBP.424321.001UM Version 1.0 27/01/2020

1.5 Device and principle of operation

1.5.1 EMI-SSD-1M is able to connect 8 gas detectors simultaneously via «current loop» ana-

logue interface and «Bell 202» («HART» protocol) digital interface or 32 gas detectors via the RS-485

interface («Modbus RTU» protocol). In total up to 40 gas detectors can be connected to the device.

1.5.2 Data may be transferred to a higher level system via «RS-485» interface («Modbus

RTU» protocol), via wireless communication standards «LoRa» и «Bluetooth».

1.5.3 Data and events are archived on external SD card..

1.5.4 External circuits switching is carried out by 3 relays, shifting can be tuned.

1.5.5 EMI-SSD-1M channels tuning and configuration is carried out in control unit menu by

built-in key-pad and OLED-display, as well as by «Bluetooth».

1.5.6 Battery CR2032 for internal clock continuous operation is installed in EMI-SSD-1M.

1.5.7 Latches for fixing the device on a DIN rail are on the rear cover.

1.5.8 Indication alarm and control elements are on the upper front surface:

- OLED-display allows visually track changes in the values of variables from connected sen-

sors, and display a custom menu.

- two LED indicators:

a) «Operation»(green) –indicates that device is turned on;

b) «Failure»(red) –lights up in case of set threshold exceeding or connected detectors fail-

ure.

- piezoelectric radiator makes sound in case of set threshold exceeding or connect-

ed detectors failure.

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- 8 control and menu navigation buttons:

- turn on/turn off/reload;

- up;

- down;

- left;

- right;

- confirmation (main mode –cannel information request);

- cancel/back (main mode –menu request);

- emergency mute (handshaking).

On the lower front surface there are EMI-SSD-1M detachable joints (terminal blocks), the

purpose of which is described in Table A1 of Appendix A. Actuators, sensors, communication lines

and power supply are connected to these joints. Split design of the terminal blocks allows to perform

hot-swapping.

SD-card slot and antenna LоRa connector are located on the upper side surface of EMI-SSD-

1M in accordance with Figure A1 of Appendix A.

1.6 Marking and sealing

1.6.1 EMI-SSD-1M marking must contain:

- name EMI-SSD-1M;

- manufacturer trademark;

- electrical terminals and external connections identification;

- light indication;

- supply voltage and power consumption value;

- IP degree of protection;

- factory serial number;

- manufacture year.

1.6.2 Sealing

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