Siemens RBC User manual

Installation Instructions

Document No. 586-797

August 25, 2005

Modular Building Controller (MBC)

Remote Building Controller (RBC)

Backplane and Cable Kit

Product Description

Kit provides MBC or RBC Replacement Backplane with

connection for 24 VAC, Class 1 power when installed in

party cabinet meeting NEMA Type 1.

CAUTION:

Use of a backplane outside of NEMA Type 1

or controlled environment relatively free of

contaminants voids all UL, CSA, and FCC

approvals, as well as European EMC and

LVD compliance. All listings and

declarations are responsibility of cabinet

manufacturer or system integrator.

Product Numbers

545-735 MBC/RBC Backplane 24Vac Cable Kit

includes low voltage power cable, 10A circuit

breaker, MOVs and terminating hardware for

use with any Replacement Backplanes without

MBC/RBC enclosure.

545-077 Replacement Backplane—MBC-24 See

Installation Instructions (545-411)

545-078 Replacement Backplane—MBC-40

See Installation Instructions (545-411)

545-274 Replacement Backplane—RBC See

Installation Instructions (545-261)

Danger/Warning Notations

DANGER:

Electric shock, death, or

severe property damage may

occur if you do not follow a

procedure as specified.

WARNING:

Personal injury or property

damage may occur if you do

not follow a procedure as

specified.

CAUTION:

Equipment damage or loss of

data may occur if you do not

follow the procedures as

specified.

Required Tools

•Phillips #2 screwdriver

•1/4-inch nut driver

•1/8-inch standard screwdriver

Expected Installation Time

10 minutes for each backplane.

Prerequisites

WARNING:

Only a qualified electrician or authorized

Siemens Building Technologies

representative should perform installation.

•All MBC-40, MBC-24 or RBC Backplanes are not

yet mounted to cabinet chassis.

•Class 1, 115/230V to 24V AC Transformer is

mounted in cabinet and sized for total power of all

backplanes per requirements in Table 1.

•Cabinet is connected to an approved building

earth ground using dedicated 3 wire.

•Cabinet has provisions for low impedance ground

from all backplanes to the cabinet earth ground

connection point.

Cabinet has mounting features and hardware for

the backplane ca

•pable of minimum 250lb. vertical

•d or optical isolation

installed between cabinets.

Table r S ments

Ba e Tran r

sheer strength.

Multiple cabinets are connected to same or

bonded building earth groun

1. Transforme

ckplan

izing Require

Minimum VA

Type sforme

MBC-24 120

M 200BC-40

RBC 80

Note each Backplane circuit breaker is 10A.

Item Number: 586-797 Rev. 010

Page 1 of 2

Document No. 586-797

Installation Instructions

August 25, 2005

Instructions

I innstall g the Backplane

Before securing, ensure no wires are caught

or pinched behind the backplane.

Insert the MBC-24 or MBC-40 backplane conne

through the rectangular cutout on the right side of

backplane.

WARNING:

1. ctor

the

Snap in place, as shown in (Error!

t found.1). (RBC alreadyReference source no

installed.)

Figure 1. MBC-24 Backplane connector.

2. Using ¼ in. (6.35mm) hardware provided by the

cabinet manufacturer mount the backplanes:

•MBC-24, 7-1/2 x 16-15/16 in (190mm x 430mm)

MBC-40, 7-1/2 x 26-15/1•6 in (190mm x 684mm)

ree•RBC, 7-1/2 x 11-3/4 in (190mm x 298mm) th

places bottom centered

Installing the Line Voltage Varistors

ure 2. Line Voltage Varistor AssFig embly

3. Attach ¼ quick connect (13) on white wire (8) to

transformer and (9) to Neutral with the wire nut.

1. Place insulator under terminal strip (3) and secure to

cabinet with sheet metal screws.

2. Attach ring (12) on green/yellow wire (7) to cabine

approved building earth ground point.

4. Attach ¼ quick connect (13) on black wire (10) to

transformer and (11) to Line voltage not greater than

240VAC typical with the wire nut.

Installing the Low Voltage Cable

1. Provide a 1-1/8 (28.5mm) x 9/16 in. (13.5mm) cutout

for the circuit breaker or remove tape backing and

apply to clean, dry surface.

2. Secure terminal to cabinet with sheet metal screws.

3. Using Phillips screw with washer secure the ring

terminals on the neutral wires to the backplane.

CAUTION:

Where multiple backplanes are

ensure H N polarity is observed.

4. Screw 24VAC Hot and Neutral wires into terminal.

5. Plug the low voltage power cable into backplane.

H N

Figure 3. Low Voltage Power Cable Assembly.

Completing the Installation

1. Apply Shutdown label adjacent to circuit breaker.

DANGER: The circuit breaker may not

disconnect all high voltage I/O

modules.

Incorporate a readily accessible

disconnect device for high

voltage I/O modules into the

wiring outside the backplane.

The installation is now complete

Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as

Siemens Building Technologies, Inc.

1000 Deerfield Parkway

Buffalo Grove, IL 60089-4513

U.S.A.

Your feedback is important to us. If you have

comments about this document, please send

them to [email protected]

Document No. 586-797

Printed in the U.S.A.

Page 2 of 2

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