Bacharach MVR-SC User Manual

1100-2294 Rev 1 1

1100-2294 Rev 1 2

WARRANTY POLICY

Bacharach, Inc. warrants to buyer that at the time of delivery this product will be free from defects in material and manufacture and

will conform substantially to Bacharach, Inc.’s applicable specifications. Bacharach’s liability and buyer’s remedy under this warranty

are limited to the repair or replacement, at Bacharach’s option, of this product or parts thereof returned to seller at the factory of
manufacture and shown to Bacharach, Inc.’s reasonable satisfaction to have been defective; provided that written notice of the

defect shall have been given by buyer to Bacharach, Inc. within one (1) year after the date of delivery of this product by Bacharach,
Inc.

Bacharach, Inc. warrants to buyer that it will convey good title to this product. Bacharach’s liability and buyer’s remedy under this
warranty of title are limited to the removal of any title defects or, at the election of Bacharach, to the replacement of this product or
parts thereof that are defective in title.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY AND ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR

REMEDY IN CONTRACT OR TORT, WHETHER OR NOT ARISING FROM BACHARACH’S NEGLIGENCE, ACTUAL OR

IMPLIED. The remedies of the buyer shall be limited to those provided herein to the exclusion of any and all other remedies
including, without limitation incidental or consequential damages. No agreement varying or extending the foregoing warranties,
remedies or this limitation will be binding upon Bacharach, Inc. unless in writing,

signed by a duly authorized officer of Bacharach.

Register Your Warranty by Visiting: www.mybacharach.com/warranty-registration/

SERVICE POLICY

Bacharach, Inc. maintains a service facility at the factory. Some Bacharach distributors / agents may also have repair facilities;
however, Bacharach assumes no liability for service performed by anyone other than Bacharach personnel. Repairs are warranted
for 90-days after date of shipment (sensors, pumps, filters and batteries have individual warranties). Should your analyzer require
non-warranty repair, you may contact the distributor from whom it was purchased or you may contact Bacharach directly.

If Bacharach is to do the repair work, send the monitor, prepaid, to the closest service center. Prior to shipping equipment to
Bacharach, visit www.mybacharach.com for a Returned Merchandise Authorization Number (RMA #). All returned goods must be
accompanied by a RMA #. Pack the equipment securely (in its original packing, if possible), as Bacharach cannot be held
responsible for any damage incurred during shipping to our facility. Always include your RMA #, shipping address, telephone
number, contact name, billing information and a description of the defect as you perceive it. You will be contacted with a cost
estimate for expected repairs prior to the performance of any service work. For liability reasons, Bacharach has a policy of
performing all needed repairs to restore the monitor to full operating condition.

NOTICES

Product improvements and enhancements are on-going, therefore the specifications and information contained in this document
may change without notice.

Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in connection with the
furnishing, performance, or use of this material.

No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of
Bacharach, Inc.

Copyright © 2019, Bacharach, Inc., All Rights Reserved.

BACHARACH is a registered trademark of Bacharach, Inc. All other trademarks, trade names, service marks and logos referenced

herein belong to their respective companies.

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Table of Contents

1 Introduction 5

1.1 About this Manual 5

1.2 Iconography 5

1.3 General Safety Statements 6

2 Product Description 7

2.1 MVR-SC Core Functions 7

2.1.1 Home 7

2.1.2 Navigation Icons 8

2.1.3 Status Icons 8

2.1.4 Floor List 9

2.1.5 Room/Device list (each floor) 9

2.1.6 Settings 10

2.2 System Components 11

2.2.1 MVR-SC Refrigerant Leak Monitor 11

2.2.2 MVR-300 VRF Refrigerant Leak Detector 11

2.2.3 Ethernet Network Switch 11

2.2.4 Gateway 11

2.2.5 Modbus EZ-Wire Kit 11

2.3 Hardware Overview 12

3 Installation 13

3.1 Network Overview 13

3.2 Floorplan Spreadsheet (CSV) 15

3.3 Gateway IP Address 17

3.4 Hardware Installation 20

3.5 Connecting Relays: Alarm, Fault 21

3.6 Connecting Ethernet Gateways 21

3.7 Connecting MVR-300s 22

4 Upload the Floorplan to Memory 23

4.1 System Startup 23

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4.2 Commissioning. 28

4.3 Method 1: Modbus ID Auto-assign 28

4.4 Method 2: Set Modbus ID Manually 33

5 Operation 35

5.1 Overview of Normal Operation 35

5.2 Alarm Detection 35

5.3 Fault Detection 36

5.4 Communication (Comm.) Error 37

5.5 Event History 38

5.6 Service Mode Screen 40

6 Additional Information 41

6.1 Disposing of the Instrument 41

6.2 Service Center Locations 41

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1 Introduction

1.1 About this Manual

Thank you for investing in a Bacharach MVR-SC Refrigerant Leak Monitor. To ensure operator
safety and the proper use of the gas detector, please read the contents of this manual for
important information on the operation and maintenance of the instrument.

1.2 Iconography

Alert

Icon

Description

Danger

An imminently hazardous situation which, if not avoided, will result in death or serious
injury.

Warning

A potentially hazardous situation which, if not avoided, could result in death or serious
injury.

Warning

Potential electrical shock hazard which, if not avoided, could result in death
or serious injury.

Caution

A potentially hazardous situation which, if not avoided, could result in physical injury or
damage to the product or environment. It may also be used to alert against unsafe

Important

Additional information on how to use the product.

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1.3 General Safety Statements

DANGER: This product HAS NOT been designed for use in hazardous locations. Failure to comply may
result in personal injury or death.

WARNING: NEVER connect the product’s 24V DC inputs directly to AC power supply.

WARNING: DO NOT apply power until all wiring has been completed.

CAUTION: The protection provided by this product may become impaired if it is used in a manner not

specified by the manufacturer. Modifications to this instrument, not expressly approved, will void the
warranty.

CAUTION: DO NOT continue to use this equipment if there are any symptoms of malfunction or failure.
In the case of such occurrence, de-energize the power supply and contact a qualified repair technician
or the nearest Bacharach Service Center.

IMPORTANT: Before using this product, carefully read and strictly follow the instructions in the manual.
Ensure that all product documentation is retained and available to anyone operating the instrument.

IMPORTANT: The MVR-SC must be installed by a suitably qualified technician who will install this unit in
accordance with these instructions and the standards in their industry / country. This document is only
intended as a guide, and the manufacturer bears no responsibility for the installation or operation of this
unit. .

IMPORTANT: Comply with all local and national laws, rules, and regulations associated with this
equipment. Operators should be aware of the regulations and standards in their industry / locality for the
operation of the MVR-SC.

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2 Product Description

The MVR-SC Refrigerant Leak Monitor provides centralized monitoring and alarming for multi­occupant applications utilizing the MVR-300 Refrigerant Leak Detectors. The MVR-SC
continuously monitors all connected devices for alarm and fault conditions and will provide alerts
via the integrated color touchscreen and built-in relays.

2.1 MVR-SC Core Functions

Monitor a network of connected MVR-300 refrigerant leak detectors for the following:

 High or low PPM alarm events
 Hardware faults
 Network connectivity

The MVR-SC controller will respond to these events as follows:
 Alarm – activates the alarm relay, flashes the screen to RED, activates the

audible buzzer

 Fault – activates the fault relay, flashes the screen to AMBER, activates the

audible buzzer

 Communication Error – flashes the screen to BLUE, indicates warning on screen

with the specific unit(s)

2.1.1 Home

After inactivity on the touchscreen, the system will always revert to the Home screen. When
no alarms or warnings are active, this screen resumes a System Normal state.

Figure 1 - Home Screen

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2.1.2 Navigation Icons

Most screens have the following menu icons:

2.1.3 Status Icons

Each floor and room will use the following status icons:

Icon

Icon Name

Home

Alarm list

Fault list

Comm Error

Floor list

Icon

Icon Name

Alarm

Fault

Comm Error

Normal

Not yet commissioned

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2.1.4 Floor List

Each floor will designate the highest severity status from all devices on that floor.

2.1.5 Room/Device list (each floor)

Detailed view for each MVR-300 / room in the system grouped on a given floor.

Figure 2 - Floor List

Figure 3 - Room/Device List

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2.1.6 Settings

For system configuration changes.

To access the Setting screen, tap the gear icon.

This screen is passcode protected to avoid unintentional changes.
(The Passcode screen appears.)

Enter the passcode for the MVR-SC controller to unlock and allow changes.

The default system passcode for the MVR-SC is 6388.

Figure 4 - System Settings

Figure 5 - Passcode

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2.2 System Components

2.2.1 MVR-SC Refrigerant Leak Monitor

The MVR-SC Refrigerant Leak Monitor (MVR-SC) provides centralized
alarming and monitoring for all connected MVR-300 Gas Detectors.

2.2.2 MVR-300 VRF Refrigerant Leak Detector

The MVR-300 VRF Refrigerant Leak Detector (MVR-300) provides
refrigerant leak detection for occupied rooms in VRF applications.

2.2.3 Ethernet Network Switch

An Ethernet network switch is used to provide connectivity between the
MVR-SC Controller and the individual Modbus Gateways (up to 8 ports).

2.2.4 Gateway

A gateway is used to create small networks of MVR-300 Refrigerant
Detectors (up to 15 per gateway) to ease installation and troubleshooting.

2.2.5 Modbus EZ-Wire Kit

Precisely stripped, pre-bonded wire provides faster, more consistent
installation to the MVR-300 Modbus port.

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2.3 Hardware Overview

MVR-SC Refrigerant Leak Monitor
The MVR-SC provides centralized alarming and monitoring for all connected MVR-300 Gas

Detectors.

Figure 6 - MVR-SC Overview

#

Component Description

1

PLC / Touch Screen

2

Fault Relay

3

Alarm Relay

4

Modbus

5

Power (24V DC IN)

6

Cable Entries (×4)

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3 Installation

3.1 Network Overview

IMPORTANT: Prior to installation, download the MVR-SC floorplan spreadsheet
available from MyBacharach.com or on the USB stick supplied with the
controller. This spreadsheet has editable fields for Floor / Room and non-editable
fields for Modbus ID and Gateway IP address. The floor and room fields are to be
completed prior to installation in order to ensure correct wiring and function.

Up to 100 MVR-300 devices can be connected to the MVR-SC. These are to be grouped as
Modbus RTU daisy-chain segments of up to 15 devices, terminating at a Gateway. Up to
seven gateways can be used in a fully populated network.

Gateways connect via an Ethernet TCP network, through an Ethernet switch, to the MVR-SC.
Up to seven gateways can be used in a fully populated network. The MVR-SC provides
centralized monitoring of all devices in the network, with a 15-second scan rate.

When creating the floorplan, follow these conditions:
 Keep daisy-chain segments of MVR-300 devices as near as possible to the

gateway to which they connect.

 We recommend keeping this distance under 500 ft., if possible, for Modbus

daisy-chain segments. As wire length increases, noise sources can accumulate,
and a greater degree of attention to shielding and grounding is required.

 It is important that the designations in the floorplan spreadsheet “data.csv”

exactly match the actual installed network. Any changes in the physical wiring
must be reflected in the spreadsheet for the system to function.

The following diagram shows an example network using all seven Gateways.

Figure 7 - Connection Diagram

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Network Creating Notes:

 To mark devices to be on the same floor, those devices must have the same

floor name (capitalization matters). The MVR-SC will display a new “floor” tile for
each unique name appearing in the floorplan spreadsheet, up to 16 district
values.

 The floor and room cells can be named with any combination of up to eight digits

of letters and/or numbers.

 It is possible to hardwire up to 15 devices to the controller’s Modbus RTU port.

To indicate these in the floorplan, fill in the cells at the bottom of the spreadsheet
(rows with IP marked “Direct”).

 Each Gateway’s IP Address must be unique. If only one gateway is used, its IP

address should be 192.168.0.1. The IP address for subsequent gateways would
be 192.168.0.2, 192.168.0.3, etc.

 The 7th gateway, if used, has a limit of 10 devices. All other gateways have a

limit of 15 devices.

Figure 8 – Small Example Network

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3.2 Floorplan Spreadsheet (CSV)

The MVR-SC floorplan spreadsheet (data.csv) is intended to be edited on a PC, and then
uploaded to the controller via the USB stick. The spreadsheet contains placeholder entries for
all possible devices in the network, but only those with “floor” and “room” cells populated will
be active and displayed.

Insert the USB stick into a computer that has Excel software installed.

1. Open the flash drive and click the example CSV file titled “data.csv.”

In this file, there are columns labeled: Index, Floor, Room, Gateway, Modbus ID, and
IPAddress. Of those six columns ONLY the middle three (Floor, Room, and Gateway)
can be edited.

.

Figure 10 - Click the .CSV File

Figure 9 - The MVR-SC Floorplan Spreadsheet

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2. Add your floors and rooms to match the floorplan that has been designed for this specific
building layout.

3. Save the floorplan spreadsheet as a .csv format and upload it onto the USB stick at the
device root folder. The filename must be named as “data.csv.” or the MVR-SC will not be
able to find the file when importing.

4. Upload the spreadsheet into the controller from the USB stick using the steps outlined in
Section Error! Reference source not found., Error! Reference source not found..

Special Notes:
 There can be multiple gateways on a given floor and is not limited to one

gateway per floor.

 To have floors in numeric order, have them listed as such in the “data.csv” file.

The “data.csv” file does not do any interior or alphabetical sorting.

 Every assigned room in the “data.csv” file must have a Modbus number

assigned.

 The column titled “Gateway” is optional and nothing in that column will appear on

the MVR-SC.

 Do not add text into any text boxes to the right of Column F and/or below row

114, or the MVR-SC will not be able to read the file.

Figure 11 - Example Layout

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3.3 Gateway IP Address

Each gateway in the system requires a unique IP address.
The MVR-SC connects to up to seven gateways, using the following default IP address

scheme.

,

The IP address for each Gateway may need to be changed by the user, since they ship with
default IP 192.168.0.1. This can be done using a windows PC and the free Moxa utility.

Steps to change Gateway IP addresses:

1. Connect the first Gateway to be changed to a PC using either Ethernet port. Power the
gateway with 24VDC.

2. Download MGate Manager for windows from:

a. https://moxa.com/en/products/industrial-edge-connectivity/protocol-

gateways/modbus-tcp-gateways/mgate-mb3170-mb3270-series#resources

b. Direct Zip download link

3. Open the MGate Manager Application. Press the “Search” Button to start looking for
devices

Order

IP for Gateway

MVR-300 device count

1

192.168.0.1

15

2

192.168.0.2

15

3

192.168.0.3

15

4

192.168.0.4

15

5

192.168.0.5

15

6

192.168.0.6

15

7

192.168.0.7

10

Figure 12 – Mgate Manager for Windows

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4. Choose Broadcast Search to search on the entire connected

5. When discovered, the Gateway should show up in the table. Select its row and press
Configuration.

a. Note: if this step requires a password it is “moxa”

6. Navigate to the Network tab (the second tab).

Figure 15 - Network tab

7. In the Network tab you will be able to set the IP. Change the IP from “192.168.0.1” to the
IP that corresponds with your Gateway index (1 – 7) from the chart above.

Figure 13 – Broadcast Search

Figure 14 – Gateway Configuration

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8. If this gateway is the first in the network, its IP address is already correct – 192.168.0.1. If
it is the second, change the last digit to match – 192.168.0.2, etc.

9. Repeat this process for the remaining gateways in the system.

The gateways contain powerful built-in troubleshooting features. If system

troubleshooting is required, please reach out to Bacharach Product Support for
relevant documentation and support.

Figure 16 - Network Setting OK screen

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3.4 Hardware Installation

Mount the MVR-SC in an accessible location for viewing alerts and responding to alarm
conditions.

Environment: place the MVR-SC in an indoor setting free from the risk of

exposure to water, high humidity or any hazardous conditions.

Accessibility: ensure that the MVR-SC’s touch screen is readily accessible for

viewing alerts and responding to alarm conditions.

1. Connect the controller to a 24V DC, rated power supply.

Near to the 24V DC is a terminal block for direct Modbus RTU connections.
This is to be used for troubleshooting or very small direct-connected networks less than 15

units. A typical large floorplan should be divided into segments connecting via Gateways, as
described earlier.

WARNING: Do not apply power until all wiring is in place.

Figure 17 - Modbus Wiring

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3.5 Connecting Relays: Alarm, Fault

If used, connect the relay output(s) to equipment that will be triggered by each relay.
Note: Take care to ensure proper wiring for intended function: normally open and / or

normally closed.

3.6 Connecting Ethernet Gateways

Connect the Ethernet output from the controller to the gateway(s).
Note: If multiple gateways are in use, their Ethernet ports may be daisy chained or an

optional Ethernet switch can be used to connect all gateways and the controller
onto the same local subnetwork.

Connect the Modbus cable to the gateway output as depicted below.

Figure 18 - Wiring Relays

Figure 19 - Wiring Gateways

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Each gateway can support a maximum of 15 MVR-300 detectors connected in a daisy
chain fashion using the Modbus network cable. These use a 3-wire cable. Leave no more
than 12 in (30.5 cm) for the single wire tie-off to each MVR-300.
The shield cable may be left floating or tied to electrical GND at the controller only.

3.7 Connecting MVR-300s

Connect the first MVR-300 detector’s Modbus port (3-wire) to the gateway. The address to
each MVR-300 detector will therefore be a combination of its Modbus ID (number 2 through

16), and the unique IP address of the Gateway to which they are connected.

Additional resources for the MVR-300 VRF Refrigerant Leak Detector are available online. To
download these resources, visit http://bit.ly/2wr9eMn.

Special Notes:

 The gateway provides the link between the MVR-SC and up to 15 MVR-300

devices.

 Cable recommended Belden 3106, 1.5 twisted pair, shielded, or similar.
 Daisy-chain only, minimizing the total Modbus run length for best performance.
 The best practice is to leave no more than 12-inches (30.5 cm) for the wire tie-off

to each device.

Figure 20 - Wiring the MVR-300

Tip: An EZ-wire connection is available, perfectly matched to

the Modbus wiring terminal on the MVR-300, which can
ensure faster, more consistent wiring.

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4 Upload the Floorplan to Memory

4.1 System Startup

1. Power up the MVR-SC. When the System Startup (Home) screen appears, access

System Settings.

2. After the System Setting screen appears, insert the USB stick containing the floorplan

spreadsheet into the appropriate slot of the controller.

Note: Instructions on filling out this spreadsheet can be found in Section 3, Installation

3. Network Overview

IMPORTANT: Prior to installation, download the MVR-SC floorplan spreadsheet
available from MyBacharach.com or on the USB stick supplied with the
controller. This spreadsheet has editable fields for Floor / Room and non-editable
fields for Modbus ID and Gateway IP address. The floor and room fields are to be
completed prior to installation in order to ensure correct wiring and function.

Up to 100 MVR-300 devices can be connected to the MVR-SC. These are to be grouped as
Modbus RTU daisy-chain segments of up to 15 devices, terminating at a Gateway. Up to
seven gateways can be used in a fully populated network.

Gateways connect via an Ethernet TCP network, through an Ethernet switch, to the MVR-SC.
Up to seven gateways can be used in a fully populated network. The MVR-SC provides
centralized monitoring of all devices in the network, with a 15-second scan rate.

When creating the floorplan, follow these conditions:
 Keep daisy-chain segments of MVR-300 devices as near as possible to the

gateway to which they connect.

Figure 21 - System Status screen

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 We recommend keeping this distance under 500 ft., if possible, for Modbus

daisy-chain segments. As wire length increases, noise sources can accumulate,
and a greater degree of attention to shielding and grounding is required.

 It is important that the designations in the floorplan spreadsheet “data.csv”

exactly match the actual installed network. Any changes in the physical wiring
must be reflected in the spreadsheet for the system to function.

The following diagram shows an example network using all seven Gateways.

Network Creating Notes:

 To mark devices to be on the same floor, those devices must have the same

floor name (capitalization matters). The MVR-SC will display a new “floor” tile for
each unique name appearing in the floorplan spreadsheet, up to 16 district
values.

 The floor and room cells can be named with any combination of up to eight digits

of letters and/or numbers.

 It is possible to hardwire up to 15 devices to the controller’s Modbus RTU port.

To indicate these in the floorplan, fill in the cells at the bottom of the spreadsheet
(rows with IP marked “Direct”).

 Each Gateway’s IP Address must be unique. If only one gateway is used, its IP

address should be 192.168.0.1. The IP address for subsequent gateways would
be 192.168.0.2, 192.168.0.3, etc.

 The 7th gateway, if used, has a limit of 10 devices. All other gateways have a

limit of 15 devices.

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4.2 Floorplan Spreadsheet (CSV)

The MVR-SC floorplan spreadsheet (data.csv) is intended to be edited on a PC, and then
uploaded to the controller via the USB stick. The spreadsheet contains placeholder entries for
all possible devices in the network, but only those with “floor” and “room” cells populated will
be active and displayed.

Insert the USB stick into a computer that has Excel software installed.

4. Open the flash drive and click the example CSV file titled “data.csv.”
In this file, there are columns labeled: Index, Floor, Room, Gateway, Modbus ID, and
IPAddress. Of those six columns ONLY the middle three (Floor, Room, and Gateway)
can be edited.

.

5. Add your floors and rooms to match the floorplan that has been designed for this specific
building layout.

6. Save the floorplan spreadsheet as a .csv format and upload it onto the USB stick at the
device root folder. The filename must be named as “data.csv.” or the MVR-SC will not be
able to find the file when importing.

7. Upload the spreadsheet into the controller from the USB stick using the steps outlined in
Section Error! Reference source not found., Error! Reference source not found..

Special Notes:
 There can be multiple gateways on a given floor and is not limited to one

gateway per floor.

 To have floors in numeric order, have them listed as such in the “data.csv” file.

The “data.csv” file does not do any interior or alphabetical sorting.

 Every assigned room in the “data.csv” file must have a Modbus number

assigned.

 The column titled “Gateway” is optional and nothing in that column will appear on

the MVR-SC.

 Do not add text into any text boxes to the right of Column F and/or below row

114, or the MVR-SC will not be able to read the file.

4.3 Gateway IP Address

Each gateway in the system requires a unique IP address.

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The MVR-SC connects to up to seven gateways, using the following default IP address
scheme.

,

The IP address for each Gateway may need to be changed by the user, since they ship with
default IP 192.168.0.1. This can be done using a windows PC and the free Moxa utility.

Steps to change Gateway IP addresses:

8. Connect the first Gateway to be changed to a PC using either Ethernet port. Power the
gateway with 24VDC.

9. Download MGate Manager for windows from:

a. https://moxa.com/en/products/industrial-edge-connectivity/protocol-

gateways/modbus-tcp-gateways/mgate-mb3170-mb3270-series#resources

b. Direct Zip download link

10. Open the MGate Manager Application. Press the “Search” Button to start looking for
devices

11. Choose Broadcast Search to search on the entire connected

12. When discovered, the Gateway should show up in the table. Select its row and press
Configuration.

a. Note: if this step requires a password it is “moxa”

13. Navigate to the Network tab (the second tab).

Figure 15 - Network tab

14. In the Network tab you will be able to set the IP. Change the IP from “192.168.0.1” to the
IP that corresponds with your Gateway index (1 – 7) from the chart above.

15. If this gateway is the first in the network, its IP address is already correct – 192.168.0.1. If
it is the second, change the last digit to match – 192.168.0.2, etc.

Order

IP for Gateway

MVR-300 device count

1

192.168.0.1

15

2

192.168.0.2

15

3

192.168.0.3

15

4

192.168.0.4

15

5

192.168.0.5

15

6

192.168.0.6

15

7

192.168.0.7

10

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16. Repeat this process for the remaining gateways in the system.

The gateways contain powerful built-in troubleshooting features. If system

troubleshooting is required, please reach out to Bacharach Product Support for
relevant documentation and support.

1100-2294 Rev 1 28

17. , of this manual.

18. Click Network Config, and then press “Upload CSV” to upload the floorplan
spreadsheet data.csv from the root folder of the USB stick.

A success message will indicate that the upload is complete.

4.4 Commissioning

Each MVR-300 ships with default Modbus ID set to 1. These can be set in either of two
methods:

1. Modbus ID Auto-assign:

Automatically connect and set ID’s using the integrated Magnetic Switch to pair each

MVR-300 to its install location.

2. Set Modbus ID Manually:
Use the RS485 port on the controller to manually set the Modbus IDs, and then install
according to the floorplan, while keeping track of assigned Modbus IDs.

4.5 Method 1: Modbus ID Auto-assign

1. MVR-300 devices can be auto-assigned their Modbus ID using 2-person verification
technique.
This process gives that added advantage of physically verifying that each connected
device is correctly installed in the assigned room location.

2. Enter settings to confirm passcode has been entered. (If the passcode has not been
entered, the Device Modbus Pairing Screen will not be accessible).

Figure 22 - System Setting screen

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3. On the MVR-SC touch screen, tap the pin icon in the bottom right of the screen to
advance to the “Floors” screen and then tap the floor that is to be commissioned.

Figure 23 - Floor List screen

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4. Tap the tile with the room that is being commissioned.

This should open the Device Modbus Pairing Screen. At this screen, have a co-worker
tap the top single dot () with the magnetic wand on the MVR-300 for less than a second.
(Device should make an audible sound signaling that it is in “Commissioning Mode”)
Optionally, the MVR-300 may be taken out of this mode by briefly tapping Magnetic Switch
B ()

Figure 24 – Tap the tile of room to

commission

Figure 25 – The MVR-300

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5. Once the device has been placed into the “Commissioning Mode”, tap Commission
Device. If the device has successfully commissioned a “Success” message should

appear. If the commission was unsuccessful, an “Unable to Contact Device” message

should appear.

6. Once the commission is successful, tap the “Back” button to go back to the devices
screen.

Figure 26 - Device Modbus Pairing

Figure 27 - Once commission is

successful, tap Back

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On the devices screen there should be a green checkmark on the device that was
just commissioned signaling that the commission was successful.

7. Repeat these steps for each room on a floor and each floor in the building until all MVR­300 devices have been commissioned. When all devices have been commissioned the
green “System Normal” splash will display on the Home Screen.

Figure 28 - Green checkmark appears

Figure 29 - System Normal screen

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4.6 Method 2: Set Modbus ID Manually

An alternate approach is to manually assign IDs to the MVR-300 devices prior to wiring.
There is a tool for this as well. Contact Bacharach for further information.

Wire a single MVR-300’s Modbus port to the controller’s Modbus terminal block. It is
recommended to use the EZ-wire kit included with the MVR-SC controller for ease.

1. From Settings, open the Set Modbus ID screen to select and apply a specific Modbus ID.

2. Tap Search to connect to the device. If the unit does not have factory Modbus ID #1, this
can be restored by doing a factory reset.

In case the MVR-300 has had its Modbus ID changed by the user to some ID other than
the default address 1, do the following to reset to factory settings:

a. Power OFF the MVR-300. Set dipswitch-8 to the ON position.
b. Power ON the MVR-300 (buzzer should sound). Reset dipswitch-8 to the OFF

position (buzzer should turn off).

Figure 30 - Set Modus ID

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c. Next, use the magnet wand held to the upper switch location (*) on the MVR-300

for 60 seconds. The device should beep once completed.

d. Remove the magnet wand and cycle power. The MVR-300 will have reverted to

default settings and Modbus ID 1.

e. Specify a unique ID for the MVR-300 which can be numbers 2 through16.

f. Tap Set Unit ID to apply this ID.

g. Repeat the above steps for each device. Keep track of the assigned IDs and

install according to the floorplan spreadsheet.

Figure 31 - Set Unit ID

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5 Operation

5.1 Overview of Normal Operation

The MVR-SC provides centralized monitoring of all segments in the network with a 15-second
scan rate.

5.2 Alarm Detection

The MVR-SC controller will provide instantaneous details for any MVR-300 in the network
experiencing an alarm condition.

To respond to an alarm event:

1. Tap Mute to silence the alarm. This will mute the buzzer at the controller for 30-minutes.

2. Tap Details to open the Devices in Alarm screen to view the device(s) impacted.

The Devices in Alarm screen will list the Floor/Room location, designate the highest
severity status from all devices on that floor, and network details for each affected
MVR-300. Refer to Section 2.1.3, Status Icons.

Figure 32 - Alarm Detected screen

Figure 33 - Devices in Alarm screen

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5.3 Fault Detection

The MVR-SC controller will provide instantaneous details for any MVR-300 in the network
experiencing a hardware fault condition.

To respond to a Fault event:

1. Tap Mute to silence the alert. This will mute the buzzer at the controller for 30-minutes.

2. Tap Details to open the Devices in Fault screen to view the device(s) impacted.

The Devices in Fault screen will list the Floor/Room location, status, and
network details for each affected MVR-300.

Figure 34 - Fault Detected screen

Figure 35 - Devices in Fault screen

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5.4 Communication (Comm.) Error

If enough unsuccessful attempts occur to an MVR-300, this will be indicated with an alert.

To respond to a Comm. Error event:

1. Tap Details to open the Comm. Error screen to view the device(s) impacted.

The Comm. Error screen will list the Floor/Room location, status, and network
details for each affected MVR-300.

Figure 36 – System Status screen

Figure 37 - Comm. Error screen

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5.5 Event History

The MVR-SC will save new Alarm or Fault events to the Event History. This can be
accessed from the Setting screen. The event history is a rolling list of 100 entries. In addition,
entries tagged as neither alarm nor fault are created when a device status clears to normal.

Note: The Fault Code is stored as a decimal value and should be converted back to a hex

or binary value for easier interpretation of the specific fault codes.

The Time and Date can be set using the UniApps utility.

1. Press and hold the “B” icon in the upper right corner for 3 seconds.

Figure 38 - Event History screen

Figure 39 - Press and hold the "B" icon

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2. Tap UniApps from the pop-up menu that appears.

3. Select the System tab, and then Time & Date. Choose the date from the calendar tool on
the left side of the screen and the time from the right side of the screen.

4. To return to the home page, press and hold the upper right corner again for 3 seconds.
From the dropdown menu, choose UserApp.

Figure 40 - Tap UniApps

Figure 41 - Choosing the time and date

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5.6 Service Mode Screen

Disables the audible buzzer and sets the relays to the default (normal) position for 30 minutes
in order to facilitate maintenance on the network or MVR-300 devices. To access the Service
Mode Screen:

1. Open the Settings screen (gear icon in upper right) and tap the Service Mode button.

2. Tap Apply to begin a 30-minute countdown. A timer appears once activated and tapping
Apply again will restart the countdown.

Figure 42 - Service Mode screen

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6 Additional Information

6.1 Disposing of the Instrument

EU-wide regulations governing the disposal of electrical and electronic appliances which have
been defined in the EU Directive 2012/19/EU and in national laws have been effective since
August 2012 and apply to this device.

Common household appliances can be disposed of using special collecting and recycling
facilities. However, this device has not been registered for household usage. Therefore, it must
not be disposed of through these channels. The device can be returned to your national
Bacharach Sales Organization for disposal. Please do not hesitate to contact Bacharach if you
have any further questions on this issue.

6.2 Service Center Locations

Prior to shipping equipment to Bacharach, visit www.mybacharach.com for a Returned
Merchandise Authorization Number (RMA #). All returned goods must be accompanied by an
RMA #. Pack the equipment securely (in its original packing, if possible), as Bacharach cannot
be held responsible for any damage incurred during shipping to our facility.

Location

Contact Information

Shipping Address

United States

Phone: [phone]
Toll Free: [phone]
Fax: [phone]
Email: [e-mail]

Bacharach, Inc.
621 Hunt Valley Circle
New Kensington, PA 15068, USA
ATTN: Service Department

Europe

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Bacharach, Inc.
Unit D12 Santry Business Park Dun
Swords Road
Santry, Dublin, Ireland
ATTN: Service Department

Canada

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Bacharach, Inc.
10 West Pearce Street, Unit 4
Richmond Hill, Ontario L4B 1B6, Canada
ATTN: Service Department