User Manual

ManualsBrandsSiemens ManualsBuilding automationEU Declaration of Conformity PXC-NRUF

CM2N9760en_07

2015

-12-23

Building Technologies

760

9760p01

Desigo

™ Integral Migration

Automation station,

compact series

PXC-NRUF

In existing Integral plants, you can replace compact automation units

NRUE/A, NRUF/A and NRUT/A with the PXC NRUF automation station.

− Same housing.

− Same periphery interface (plug compatible).

− Existing periphery can be assumed without a change.

− Use existing panel wiring.

• Compact, freely programmable automation station for HVAC and building

services plants.

• Native BACnet automation station with communications

– BACnet via LonTalk

– BACnet PTP (point-to-point)

– Modem.

• PPC processor allows for high performance and reliable operation

• Comprehensive management and system functions (alarm management,

schedulers, trends, remote management, access protection, etc.)

• 64 physical inputs / outputs

• Stand-alone application or for use with linked system or devices.

• Supports the following operating elements:

– Room units QAX...

– Local / networkable operator units

– System or WEB operation via system network.

Summary of content (16 pages)

PAGE 1
9 760 9760p01 s Desigo™ Integral Migration Automation station, compact series PXC-NRUF In existing Integral plants, you can replace compact automation units NRUE/A, NRUF/A and NRUT/A with the PXC NRUF automation station. − Same housing. − Same periphery interface (plug compatible). − Existing periphery can be assumed without a change. − Use existing panel wiring. • Compact, freely programmable automation station for HVAC and building services plants.
PAGE 2
Functions Automation stations provide the infrastructure for recording and processing system and application-specification functions and are freely programmable. Comfortable management functions are integrated in addition to control functions, e.g.: • Alarm management with alarm routing via the entire network. Standard, basis and expanded alarm management with checked secure transmission and automated transmission monitoring. • Scheduler programs. • Trend functions. • Remote management function.
PAGE 3
Equipment combinations Operation Various options exist to operating automation stations PXC-NRUF: • Room device QAX... on the PPS2 interface. Up to a maximum of five room devices QAX... (without QAX5...) can be connected. Details on PPS2 communication are described in the Desigo Technical principles manual (Section "I/O blocks", subsection "PPS2 addressing"). • Local operator unit PXM10 *), is connected with cable PXA-C1.
PAGE 4
Power supply The device requires an external power supply AC/DC24V +/- 20%. It must comply with SELV / PELV requirements! The internal DC-DC converter supplies the internal processor system and inputs/outputs with controller voltage. DC15V /200mA is also provided for active sensors (Integral periphery). This converter also establishes electrical isolation to the AC/DC24V power supply.
PAGE 5
9762z10 LED displays RUN LED RUN Color Green STATUS Red SERVICE Red TX LOW BATT INFO Yellow Red STATUS SERVICE TX LOW BATT INFO Activity Continuously off Continuously on Continuously off Continuously on Function No supply present. Supply present (LED controlled by SW). Normal condition Hardware error recognized during self test or automation station in a state of "coma". There is no valid firmware present. LONW ORKS node is configured. LONW ORKS node is not configured.
PAGE 6
Commissioning The front cover may only be opened by instructed service staff! Comply with country-specific safety regulations and corresponding safety provisions to prevent personal injury or damage to property. Download plant operating programs The tool Desigo Xworks plus is used to download the plant operating program via the network (BACnet/LonTalk). Set parameters and configurations Use Desigo Xworks plus to set control parameters and configuration data.
PAGE 7
Maintenance notes Battery effective life Database information is stored in SDRAM memory, that is supported by a battery (alkaline type AA). This avoids costly reloads of programs and databases following a longer power outage (up to ca. 1 month). The unused effective life for alkaline batteries is at least four years. The remaining life under load is just a few days following a "battery low" event. The real time clock is supported by a lithium battery with an effective life of at least 10 years.
PAGE 8
Technical data General device data Operating voltage Frequency Power consumption Internal fuse AC/DC 24 V ± 20 % (SELV / PELV) 0 / 50/60 Hz. max. 26 VA. thermal, automated reset. Functional data Processor Storage location FLASH RAM Data backup during power outage Applications / Parameters (FLASH) Runtime data (buffered by AA alkaline, can be replaced on the plant) Realtime clock (buffered by Lithium battery, can be replaced on the plant). Precision category Sampling cycle Motorola PPC (MPC 885). 16 MB.
PAGE 9
Digital inputs DI 17 ... 24 with counting function As DI 9 ... 16; additionally counting function: Counter frequency (symmetrical) Min. closing/opening time incl. bouncing Max. bounce time Counter memory Universal outputs UO 1 ... 8 Can be configured in software D/A resolution (analog out) Modulating Output voltage range Output current Max. 25 Hz. 20 ms 10 ms 8 Bit (0...255  max.
PAGE 10
Plug-in screw terminals Simply cable lengths, and cable types Power supply and signals LonWorks bus Universal inputs UI 1…16 Digital inputs DI 1…24 Universal outputs UO 1…8 Relay outputs DO 1…16 Interface room units PPS2 Cable type Capacity Interface cable LONW ORKS bus Cable type Connecting cable PXM10 Solid or stranded wire 0.25...2.5 mm2 or 2 x 1.5 mm2. Solid or stranded wire 2 x 1.0 mm2. Max. 100m with A = 1 mm2. Max. 100 m with diameter 0.6 mm. Max. 100m with A = 1.5 mm2.
PAGE 11
CL A 03 CL B 5 DI17 C2.1 C3.9 DI9 DI18 C2.2 C3.10 DI10 DI19 C2.3 C3.11 DI11 ~ + 15 + 15 V GND GND 9 Supply 24 V PPS2 ~ ( ) UO7 C4.8 UO8 3 4 + 3 4 DI24 F C5.1 DO1 C5.2 DO2 C5.3 DO3 C5.4 DO4 4 3 4 3 4 3 4 C5.5 C5.6 DO6 C5.7 DO7 C5.8 DO8 4 3 4 3 4 3 4 + + + 2 C3.16 DI16 1 F 43 H I I J K L 7 DO9 8 7 DO10 8 7 DO11 8 7 DO12 8 L M N O P DO13 8 7 DO14 8 7 8 7 8 C1.11 C5.11 C5.12 K M C1.10 C5.10 91 7 C1.9 C5.9 C5.13 C5.
PAGE 12
Pin occupancy Pin description. "HMI" socket (LONWORKS) Interface Modem / COM2 9 5 8 4 7 3 6 2 1 9215Z01 87654321 1. 2. 3. 4. 01394 Pin description. LONW ORKS Data A (CLA). LONW ORKS Data B (CLB). GND. Plus 24V. 5. 6. 7. 8. Unoccupied. Connected to 8. COM1 / TxD. COM1 / RxD. Pin Abbr.
PAGE 13
Connect field devices STOP Note! This is a device using the 4-wire principle. System ground (G0) and measuring ground (– or GND) are electrically isolated. For active field devices using 4-wire technology, this connection is in the field device. For active field devices using 3-wire technology, the connection must be established separately: −  Either at the terminal on the field device. −  Or in existing plants, using only 3 wires: at the automation station between one of the terminals (–) and G0.
PAGE 14
G Motor valves AC 24 V G0 G0 G0 G0 G G G CP+ CP- UI UI UO UO 9760A05 PXC NRUF +15 GND 24V 2 1 G0 G Y G Damper actuators (e.g. GBB161.1E). AC 24 V G0 G0 G0 G0 G G G CP- CP+ UI UI UO UO 9760A06 PXC NRUF +15 GND 24V 2 GBB161.1E 1 2 1 8 B) Field device supply of separate transformers G Magnetic valves (e.g. M3P... + ZM or MX...461...).
PAGE 15
C) Connect room units G0 G0 G0 G0 4 3 2 1 C+ CP– CP+ UI C– PPS2 CP- UI R2 Notes 4 3 2 1 CP+ 1 CP– 2 C+ 3 C– N 4 CP+ UO CP– UO C+ 9760A08 R1 C– • Twisted pair bus cable. • Interchangeable polarity • Wire length, refer to "Technical data". G G G CP+ PPS2 AC 24 V PXC NRUF Max. 5 room units (parallel). +15 R... G GND Automation Station. 24V N R3 • Room units are connected in parallel (maximal 5).
PAGE 16
Dimensions 11 All dimensions in mm 250 292 16 6 250 265 16 45 63 100 9760m01 190 Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.