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5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-2642  Rev.3  P. 1 / 5

INSTRUCTION MANUAL

ANALOG BACKUP STATION

MODEL

JB2

BEFORE USE ....

Thank you for choosing M-System.  Before use, please check 
contents of the package you received as outlined below.
If you have any problems or questions with the product, 
please contact M-System’s Sales Office or representatives.

 

PACKAGE INCLUDES:

Analog backup station (body + base socket) ......................(1)

 

MODEL NO.

Confirm Model No. marking on the product to be exactly 
what you ordered.

 

INSTRUCTION MANUAL

This manual describes necessary points of caution when 
you use this product, including installation, connection, 
hardware setting and basic maintenance procedures.
When you need to change software settings, please refer to 
the Operation Manual for Model PU-2x (EM-9255), Section 
A.

POINTS OF CAUTION

 

POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and 

confirm its operational range as indicated below:

    11 – 35V DC rating: Approx. 120mA at 24V in CAS mode
     

 

 

 

    Approx. 180mA at 24V in MAN mode

 

GENERAL PRECAUTIONS

• Before you remove the unit from its base socket or mount 

it, turn off the power supply and input signal for safety.

 

ENVIRONMENT

• Indoor use.
• When heavy dust or metal particles are present in the 

air, install the unit inside proper housing with sufficient 
ventilation.

• Do not install the unit where it is subjected to continuous 

vibration.  Do not subject the unit to physical impact.

• Environmental temperature must be within -5 to +55°C     

(23 to 131°F) with relative humidity within 30 to 90% RH 
in order to ensure adequate life span and operation.

 

WIRING

• Do not install cables close to noise sources (relay drive 

cable, high frequency line, etc.).

• Do not bind these cables together with those in which 

noises are present.  Do not install them in the same duct.

 

AND ....

• The unit is designed to function as soon as power is 

supplied, however, a warm up for 10 minutes is required 
for satisfying complete performance described in the data 
sheet.

COMPONENT IDENTIFICATION

Connection Diagram

Front Cover

Specifications

Body

Base Socket

 

HOW TO OPEN THE FRONT COVER:

Hang your finger on the hook at the top of the front cover 
and pull.

The shape of base socket may be different
for some models. 

INSTALLATION

Detach the yellow clamps located at the top and bottom of 
the unit for separate the body from the base socket.

Clamp

(top & bottom)

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

Shape and size of the base socket 
are slightly different with various 
socket types.

 

DIN RAIL MOUNTING

Set the base socket so that its 
DIN rail adaptor is at the bot-
tom.  Hang the upper hook at 
the rear side of base socket on 
the DIN rail and push in the 
lower.  When removing the 
socket, push down the DIN 
rail adaptor utilizing a minus 
screwdriver and pull.

 

WALL MOUNTING

Refer to “EXTERNAL DI-
MENSIONS.”

Summary of Contents for JB2

Page 1: ...it inside proper housing with sufficient ventilation Do not install the unit where it is subjected to continuous vibration Do not subject the unit to physical impact Environmental temperature must be within 5 to 55 C 23 to 131 F with relative humidity within 30 to 90 RH in order to ensure adequate life span and operation WIRING Do not install cables close to noise sources relay drive cable high fr...

Page 2: ...IMENSIONS unit mm inch 80 3 15 50 1 97 72 2 83 107 4 21 136 5 35 3 3 13 80 3 15 20 79 60 2 36 72 2 83 7 8 31 CLAMP top bottom DIN RAIL 35mm wide 2 4 5 18 dia MTG HOLE 25 98 deep 14 M3 5 SCREW When mounting no extra space is needed between units 12 5 6 14 11 1 10 15 4 3 2 7 9 8 CONNECTION DIAGRAM MV OUTPUT 4 20mA DC RE TRANSMITTED OUTPUT 4 20mA DC MAN STATUS CONTACT RUN CONTACT POWER PU 2x MODULAR ...

Page 3: ... P Numeric SLDBAK XXX XX MAN CAS transition response second Selectable range 0 00 to 200 00 No sliding back function with 0 00 23 P UP DOWN response mode factory set value 0 0 0 UNIFORM Constant ramp rate while the key is held down 1 1 ONE UNIFORM Normal response rate for once when the key is pressed Constant ramp rate if it is continuously held down 2 2 ACCELERATED Accelerated response when the k...

Page 4: ...moment MODE 3 Holds a specific value preset by the Programming Unit PU 2x In this mode the output can be manipulated with external UP or DOWN commands When the MAN command contact is opened the CAS control signal is recovered with smooth transition TRANSITION FROM MAN TO CAS CONTROL MODE The JB2 increases decreases the MV output until it reaches to the same value as the CAS control signal and turn...

Page 5: ...1 Terminal wiring Check that all cables are correctly con nected according to the connection diagram 2 Power input voltage Check voltage across the terminal 7 14 with a multimeter 3 Input Check that the input signal is within 0 100 of the full scale 4 Output Check current across the terminal 2 11 for MV output 1 10 for the re transmitted out put ADJUSTMENT PROCEDURE This unit is calibrated at the ...

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