Siemens RXB39.1 Manuale utente

CM2N3875en_04

2013-06-16 Building Technologies

s3875

RXB

Room controller RXB39.1

Communicating room controller

for fan-coil applications FC-13

The RXB39.1 room controller is used for temperature control in individual

rooms.

For 2-pipe or 4-pipe fan-coil systems, with or without change-over

ECM fan support

PI control

KNX bus communication

Integration into the Desigo building automation and control system via

PX KNX

DC 0…10 V control of valve actuators, fan, and electric heating coil

Volt-free relay contacts for release of the fan and the electric heating coil

Commissioning with ETS Professional, "HandyTool" or Synco ACS

AC 230 V operating voltage

Pluggable screw terminals

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Siemens RXB39.1 – Room controller CM2N3875en_04

Building Technologies 2013-06-16

Use

The RXB39.1 room controller is optimized for control of fan-coil systems in

individual rooms.

The function of each controller is determined by the application software.

The controllers are delivered with a fixed set of applications. The relevant

application is selected and activated during commissioning using one of the

following tools:

ETS Professional

"HandyTool" (the QAX34.3 room unit includes a tool function which allows you to

set the parameters of the connected RXB controller)

Synco ACS

Functions

The room controller functions are determined by the selected application, its

parameters, and by the input/output configuration.

For details, refer to the FNC description of functions, document CM110788.

When RXB controllers are integrated into a building automation and control

system, or into a Synco system, additional functions become available such as

time scheduling, central control of setpoints, etc.

Applications

The following applications are available for the RXB39.1 room controller:

Application group (type) Fan-coil applications

FC-13 ECM fan application

Only one application at a time can be activated with the tool (ETS Professional,

"HandyTool" or Synco ACS).

Ordering

Equipment combinations

The RXB39.1 room controller is compatible with field devices from Siemens

Building Technologies.

For details, refer to the Desigo RX hardware overview, CA2N3804.

Note

Product number Stock number Designation

RXB39.1/FC-13 S55373-C121 Room controller

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Technical design

The RXB39.1 controller consists of a housing base, a housing cover and the

printed circuit board with connection terminals. The room controller also has a tool

socket, a service LED and a programming button.

Plug-in connection terminals

Cover

Plug-in connection terminals

80048

Cable restraints

Plug-in connection terminals

for KNX bus

Housing base

Service LED

Programming button

Tool socket

The Service LED shows the operational status of the room controller as follows:

Green, flashing Normal operation.

Red, ON Programming mode for address assignment (ETS / ACS).

Fault

Orange / green,

flashing

Startup phase.

No application selected.

Loading.

Download from ACS.

Room unit QAX34.3 in HandyTool mode.

OFF No supply voltage

Fault

Other patterns After switching on the operating voltage, the service LED

flashes in different patterns for 3 to 5 seconds.

If other patterns appear during normal operation, this indicates

an error.

The programming button is used to identify the room controller in the

commissioning phase.

Pressing this button causes the red service LED to light up and remain on until

identification of the controller is complete.

Once the programming button has been pressed, the tool overwrites the hardware

address in the room controller.

If there are no terminal covers fitted, the programming button may be operated

only by a qualified electrician.

The adjacent terminal may be a live mains voltage conductor.

Service LED

Programming button

Terminal cover

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Siemens RXB39.1 – Room controller CM2N3875en_04

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Terminal covers (RXZ30.1) are available as an option, to protect the connection

terminals from physical contact and dirt. The service LED remains visible when the

terminal covers are in place, and the programming button can be operated with a

pointed implement. The cable is connected to the room controller by breaking out

the perforated cable entry guide.

80049

Removing the terminal cover

Bar code, Code 39

(ID number)

Protection standard

Temperature range

(0 … 50 °C)

Test date, series

(Z, A, B, C…)

Serial No.

Observe the warning

notes in this data sheet

Identification number

(unique serial number)

Definitively loaded

application

Location

Options for use of the labeling fields “Appl.” and “Loc.”:

Handwritten identification of the location and the activated application group.

All connection terminals are detachable plug-in screw-terminals.

To avoid incorrect wiring, terminals which can be connected to AC 230 V (relay

outputs) are physically separated from the other terminals.

STOP Note!

Warning!

The cable restraints on the housing base must be used

for the connections to terminals 19 ... 27 (AC 230 V).

The conductors must be secured with cable ties (see

diagram).

Ensure that the power is off before inserting or

removing plug-in terminals connected to a mains

voltage.

3873J04

Label

Note

Connection terminals

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The RXB39.1 room controller communicates with other devices via the following

interfaces:

PPS2 interface (proprietary) for the exchange of data with the room units

KNX bus (terminals CE+ and CE-) for communication with:

PX/KNX interface (to Desigo Insight)

Interface OCI700 (to Synco)

Other RXB controllers

Other KNX devices (e.g. field devices)

To facilitate commissioning, the tools ETS / ACS can be connected at three diffe-

rent points (marked (A) in the diagram) in the plant:

to the KNX bus cable at any point

to the RXB39.1 controller (RJ45 tool socket)

to the room unit (RJ45 tool socket)

The tool socket is a proprietary socket.

A Siemens connecting cable must be used (e.g. PXA-C1).

When connected to Ethernet, the device on the other end may be damaged!

The tools ETS and ACS, even if connected to a tool socket, require an interface:

RS232-KNX interface (ETS)

USB-KNX / EIB interface OCI700 (ETS, ACS).

The "HandyTool" is connected to the tool socket of the room controller or to the

tool socket of the room unit (QAX…, RXZ90.1) (B).

If you use OCI700 as an interface, it is connected to the service plug of the

controller or of the room unit.

As long as the OCI700 is connected to the service plug, it must be sup-

plied by the computer via the USB interface. Otherwise the LCD display of

the room unit will turn dark and the controller will switch to addressing mode.

Communication

Connecting the tool

Notes

Caution!

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Disposal

The device is classified as waste electronic equipment in terms of the European

Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted

municipal waste.

The relevant national legal rules are to be adhered to.

Regarding disposal, use the systems setup for collecting electronic waste.

Observe all local and applicable laws.

Engineering

Topology Tree, line, or star

NO closed loops

Cable length Max. 1000 m (sum of all cables of a line

(for details refer to document CM110381)

Cable type E.g. YCYM 2 x 2 x 0.8 mm

Number of RXB Controllers per

Network

Max. 45

Bus supply Up to 45 RXB-controllers:

5WG1 125-1AB12

Bus terminator Not required

The RXB39.1 room controller operates with a mains supply voltage of AC 230 V.

The sizing and fuse protection of the power supply cables depend on the total

load and on local regulations.

If serial wiring is applied on the terminal block L / N, the connection will be inter-

rupted if the block is removed from the controller (the jumpers 19-19 and 21-21

are on the PCB, not in the block, see terminal diagrams on page 10)

Different phases may be connected to the terminals 21 (L), 23 (Q13) and

26 (Q33).

All AC 230 V conductors must be secured with cable ties.

The volt-free releasing relay output for the fan allows the switching of a load up

to AC 250 V, 5(4) A.

The volt-free releasing relay output for the heating coil switches a resistive load

up to 1.8 kW, max. 10 A.

The circuits must be externally fused (10 A) as there are no internal fuses.

The cables connected to the room controller must be secured with cable ties.

The DC 0 … 10 V control outputs YC1, YC2 deliver max 1.5 mA.

The AC 24 V supply output G (next to YC2) delivers max. 6 VA.

The DC 0 … 10 V control output YC3 delivers max 1.5 mA.

The controlled devices (valve and damper actuators) receive their power directly

from the room controller. This means that a separate AC 24 V supply is only

necessary for the field devices require more than a total of 6 VA.

KNX bus

AC 230 V

supply cables

Volt-free

relay outputs

AC 230 V

DC 0...10 V outputs

– Valve actuators

– Fan control

AC 24 V supply for

field devices (G)

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Mounting

The room controllers can be mounted in any orientation, and fixed as follows:

80060

80061

Rail mounting

The housing base is designed for snap-

mounting on DIN rails, type EN50022-

35x7.5 (can be released with a screw-

driver)

Surface mounting

There are four drill holes for screw-

mounting (see “Dimensions” for drilling

template). The housing base is fitted with

raised supports.

When mounting note the following:

The controller should not be freely accessible after mounting. It must be mounted

in a cabinet or behind a cover that can only be opened / removed with a key or a

tool.

Ensure adequate air circulation to dissipate heat generated during operation.

Easy access is required for service personnel

Local installation regulations must be observed.

Mounting instructions and a drilling template are printed on the controller packaging.

Commissioning

The RXB39.1 room controller is commissioned with one of the following tools:

ETS Professional

Synco ACS

"HandyTool" via PPS2

The definitive application and the controller's location are handwritten in the

labeling fields "Appl." and "Loc" in the commissioning stage.

A special test mode (ETS and HandyTool) is available for operation of the outputs

and interrogation of the inputs.

Labeling

Function test

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Technical data

Power supply Operating voltage

C 230 V +/-10 %

Rated voltage

C 230 V

Frequency 50/60 Hz

Power consumption with connected field devices Max. 12 VA

Internal fuse Thermal, non-resetting

Operating data Control algorithm PI

Inputs (SELV)

Signal inputs D1 … D4 Quantity 4

(for volt-free contacts) Contact voltage DC 16 V

Contact current DC 5 mA

Contact transfer resistance Max. 100 

Contact insulation resistance Min. 50 k

Switch time: min. 20ms “ON”, min. 20ms “OFF”

Measured value input B1 Compatible temperature sensors LG-Ni 1000

Quantity 2

Measuring range 0 … 50 °C

Sensor current 0.5 mA

Resolution 0.1 K

Measuring error at 25 °C sensor temp. (without cable) max. 0.5 K

Outputs (SELV)

DC 0 … 10 V YC1, YC2, YC3 Quantity 3

Resolution 3 mV

ccuracy 100 mV

Output current Max. 1.5 mA

Supply output G (SELV) Voltage / Max. load

C 24 V / Max. 6 VA

Relay outputs

Q34 (fan release) Quantity 1 (N/O contact)

Relay type Monostable

Contact rating with AC voltage

Switching voltage Max. AC 250 V, min. AC 19 V

Nominal current, resistive/inductive Max. AC 5(4) A (cos = 0.6)

Making current 200 ms half-time Max. 20 A

Switching current at AC 19 V Min. AC 10 mA

Contact rating with DC voltage

Switching voltage Max. DC 250 V, min. DC 5 V

Switching current at DC 5 V Min. DC 100 mA

Switching capacity Max. 20 W

Inductive load L/R Max. 7 ms

External fuse (essential!) Max. 10 A

Q14 (heater release) Quantity 1 (N/O contact)

Relay type Monostable

Contact rating with AC voltage

Max. admissible load (resistive only) Max. 1.8 kW

External fuse (essential) Max. 10 A

Ports/interfaces

Interface to room unit Number of room units connectable 1

Interface type for room unit

for ETS / ACS

PPS2

KNX bus

PPS2 baud rate 4.8 kbit/s

Baud rate on the KNX bus 9.6 kbit/s

KNX bus Interface type Electrically isolated

Bus current 5 mA

Baud rate bus 9.6 kbit/s

Bus topology Refer to Engineering, page 6

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Siemens RXB39.1 – Room controller CM2N3875en_04

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Cable connections Connection terminals for signals and power supply Solid or stranded conductors

0.25 … 2.5 mm2

or 2 x 1.5 mm2

KNX bus connection terminals Solid or stranded conductors 2 x max. 1.0 mm2

e.g. YCYM 2x2x0.8

Single cable lengths For field devices, see also the RXB / RXL

installation guide, CA110381

Signal inputs D1 … D4 Max. 100 m with diameters 0.6 mm

Measured value input B1, B2 Max. 100 m

0 … 10 V outputs YC1, YC2 (valve actuators) Max. 100 m where A 1.5 mm2

0 … 10 V outputs YC3 (fan) Max. 100 m where A 1.5 mm2

Relay outputs Q14, Q34 Depends on load and local regulations

Interface to room unit Max. 115 m where A= 0.75 mm2

(including connecting cable for tool)

Cable type 4-core, twisted pair, unscreened

KNX bus Max. 1000 m (see Engineering, page 6)

Tool connecting cable Max. 3 m

Housing

protection standard

Protection standard to EN 60529 IP30 with terminal cover fitted and

wall mounted without DIN rail

IP20 for all other mounting arrangements

Protection class Suitable for use in systems with protection class I or II

Ambient conditions Normal operation Class 3K5 to IEC 60721-3-3

Temperature 0 … 50 °C

Humidity < 85 % r.h.

Transport Class 2K3 to IEC 60721-3-2

Temperature – 25 … 65 °C

Humidity < 95 % r.h.

Industry standards - Product standards EN 60730

marking

- EMC

Immunity (industrial & residential)

Emission (residential)

2004/108/EG

EN 60730-1, EN 50491-5-2, EN 50491-5-3

EN 60730-1, EN 50491-5-2

- Low Voltage Directive

Electrical safety

2006/95/EC

EN 60730-1

- RoHS

Techn. RoHS proof

2011/65/EU

EN 50581

C-Tick conformity (EMC)

S/NZS 61000-6-3

Environmental compatibility The product environmental declaration CM1E3876

contains data on RoHS compliance, materials

composition, packaging, environmental benefit,

disposal

ISO 14001 (Environment)

ISO 9001 (Quality)

Dimensions See dimension diagrams

Weight excluding packaging 0.560 kg

including packaging 0.600 kg

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Siemens RXB39.1 – Room controller CM2N3875en_04

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Connection terminals

CP –

CP +

CE –

CE +

3875A08

12345678910111213141516 1718

GND

KNX

1243

QAX...

23 24 25 26

Q13

Q14

AC 230 V

Q33

5(4) A

19 19 21

CE –

CE +

Ni1000

29 30 31 32

GND

N.C.

YC1

YC2

YC3

0 ... 10 V

AC 24 V

0 ... 10 V

Q34

N.C.

24 ... 230 V

10 A

Measured value input

B1 1 Measured value input for LG-Ni 1000 sensors

M 2 Measured value input ground

B2 3 Measured value input for LG-Ni 1000 sensors

Signal inputs

D1 4 Signal input

GND 5 Signal ground

D2 6 Signal input

D3 7 Signal input

GND 8 Signal ground

D4 9 Signal input

N.C. 10 Do not use this terminal as an auxiliary terminal!

0 … 10 V outputs

YC1 11 0 … 10 V Heating control signal

G0 12 Signal ground

G 13 AC 24 V max. 6 VA

YC2 14 0 … 10 V Cooling control signal (heating / cooling in case of changeover)

G0 15 Signal ground

YC3 16 0 … 10 V Fan control signal

KNX bus

CE+ 17 KNX bus

CE– 18 KNX bus

Power supply

N 19 Neutral conductor

L 21 Phase conductor AC 230 V +/- 10 %

Relay outputs

Q13 23 Feed for Q14

Q14 24 Normally-open contact, max. AC 250 V, 1.8 kW, max. 10 A (Electric heating)

Q33 26 Feed for Q34

Q34 27 Normally-open contact, max. AC 250 V, 5(4) A (controlled fan)

Room unit

CP– 29 PPS2 ground

CP+ 30 PPS2 data

CE+ 31 KNX bus

CE– 32 KNX bus

Observe the technical data for the relay outputs: max. AC 250 V, 5 (4) A

External fuse (essential!): max. 10 A

Local installation regulations must be observed.

Proprietary RJ45-type tool socket

3206Z01

2345678

1 KNX bus (CE+)

2 KNX bus (CE–)

3 Not used

4 Not used

5 +12VDC

6 RxD

7 PPS2 (CP+) / TxD

8 PPS2 (CP–)

Caution

Tool socket

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