3 836 s Desigo TRA PL-Link I/O Block RXM39.1 Use with PXC3 series room automation station • • • • • • • • • • CM2N3836en_06 2016-05-19 The PL-Link I/O Block contains the inputs and outputs controlled by a room automation station via KNX PL-Link. KNX PL-Link bus communications Fan control (ECM fan, DC 0...10 V) Actuator control DC 0...10 V Electric heating control DC 0...
Use The RXM39.1 PL-Link I/O Block allows control of a single fancoil unit by a PXC3 room automation station via the KNX PL-Link peripheral bus. It is optimized for fancoil installation and control in terms of housing, connection terminals and I/O mix. The KNX PL-Link (PeripheraL-Link) is a two-wire bus system optimized for communication between peripheral devices (sensors, actors) and the modular PXC3 room automation stations in the domains or HVAC, lighting and shading.
Service LED The Service LED (3-color) indicates the device's operating status as follows: Continuously OFF Flashing 1 (1/4 s On, 7/4 s Off) Flashing 2 (1s On, 1 s Off) Continuously ON Service button The device carries out the following commands from the service button: Button pressure Short (< 0.5 s) (0.5...2.s) Medium (2...20 s) Long (> 20 s) HMI concept • No power supply • Nothing to indicate.
Label ID-number (Unique serial number) Barcode for ID, Code 128 Serial number Test date, series (Z, A, B, C ...) Observe notes in this document Temperature range (0 ... 50 °C) Protective category STOP Note Warning! Communication All connection terminals are plug-in terminals. The terminals are separated to prevent faulty wiring for terminals connected to AC 230 V (supply, relay outputs). Cable strain relief for lines for terminals 19 ... 28 (AC230 V) is mandatory.
Engineering notes Installation manual TRA, CM111043, contains all information required to engineer the KNX PL-Link bus (topology, repeater, etc.) Power lines AC 230 V • The PL-Link I/O Block is operated on AC 230 V power. The device directly supplies power to actuators (valves, dampers). As a result, no separate AC 24 V supply is required for the field devices. • The sizing and fusing of the power lines are oriented to overall load and local regulations.
Mounting notes The PL-Link I/O Block can be mounted in any position using the following attachment methods: 80060 80061 Mounting on tophat rail Direct mounting The housing base contains a snap-on option to mount on tophat DIN rails, type EN50022-35x7,5 (snap off using screwdriver) Four predrilled holes to mount using screws (drilling diagram, see "Dimensions"). The housing base has higher support surfaces. Screws: Max. dia. 3.
Operating notes • When power is off, all outputs are inactive • When KNX PL-Link communications fails, all outputs go to the configured backup values (after 2 x Heartbeat time). Technical data Power Protection Rated voltage Frequency Power consumption incl. connected field devices Internal fuse External supply line protection (EU) AC 230 50 / 60 Hz Max. 12 VA Thermal, irreversible Slow-blow fuse max. 10 A or Circuit breaker max.
Relay output Q14 Caution Relay output Q34 Caution KNX PL-Link bus Line connections Relay type Monostable, NO contact Contact rating at alternating current Switching voltage Max. AC 250 V Max. permissible load (resistive) Max. 1.8 kW External supply line protection See section power supply Relay type Monostable, NO contact Contact rating at alternating current Switching voltage Max. AC 250 V, min. AC 19 V Rated current resistive / inductive Max. AC 5 A / 4 A (cosϕ = 0.
Standards, directives and approvals Product standard EN 60730-1 Automatic electrical controls for household and similar use Electromagnetic compatibility (Applications) For use in residential, commercial and industrial environments EU conformity (CE) See CM2T3876xx *) UL certification (US) UL 916 CA2T3874en_C1 *) RCM conformity (EMC) EAC conformity Eurasia conformity CM2E3876 *) Environmental compatibility Product environmental declaration (contains data on RoHS compliance, materials composition, packagi
Connection terminals 2 4 3 5 7 6 8 9 10 11 12 13 14 15 16 17 18 + 1 KNX PL-Link IN 19 19 21 21 Measured value inputs 2) Old B1 M B2 1) New B1 M B2 1) 23 24 25 26 27 Terminal 1 Measured value input for LG-Ni 1000 sensor 2 Ground for measured value input 3 Measured value input for LG-Ni 1000 sensor D1 GND D2 D1 GND D2 4 5 6 Status input Ground for status inputs Status input D3 GND D4 D3 GND D4 7 8 9 Status input Ground for status inputs Status input DC 0...
Connection diagrams Connection of field devices, KNX PL-Link and supply G0 G G0 G N1 B1 D1...D4 Y1, Y2 Q1 Q2 Q2 PL-Link I/O Block RXM39.1 Temperature sensor LG-Ni 1000 Potential-free contacts (window contact, presence detector, etc.) Do not use for operation of light and blinds DC 0...10 V actuators ECM fan with DC 0...10 V control Electric heating with DC 0...10 V control Electric heating with 10 A relay Twisted pair 11 / 14 Siemens Building Technologies RXM39.
Dimensions All dimensions in mm 3876M01 110 90 35,3 Without terminal cover 3,9 1 62 50 With terminal cover RXZ30.1 (to be ordered separately) 62 120 35,3 6 3,9 1 161 3876M02 152 12 / 14 Siemens Building Technologies RXM39.
Drilling diagram 1:1 100 80056 135 13 / 14 Siemens Building Technologies RXM39.
Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd 2012 Delivery and technical specifications subject to change 14 / 14 Siemens Building Technologies RXM39.
