User Manual

ManualsBrandsSiemens ManualsAir conditioning controllerSwitching and Monitoring Device RMS705

CE1N3123en

30 May 2008

Building Technologies

HVAC Products

123

Synco™ 700

Switching and

Monitoring Device

RMS705

• Freely configurable unit thanks to extended configuration choices

• Additional universal inputs for indication and monitoring /alarming

• Data acquisition: Pulse counter (for display only), hours run counter, data

trending, event logger (e.g. for the legionella function)

• Choice of switching and monitoring functions in combination with logic opera-

tions

• Lead / lag control of pumps, fans, motors, refrigeration machines, etc., with

automatic changeover

• 3 basic universal controllers

• Unit can be extended with extension modules type RMZ785 and RMZ787

• Menu-driven operation with separate plug-in type or detached operator unit

• Konnex bus connection facility for operation and process information

Use

• Switching and monitoring of plant components in heating, ventilation or refrigeration

plant

• For non-standard applications

The RMS705 offers extended configuration choices to allow free configurations within

the scope of the available function blocks and, for this reason, does not provide any

predefined standard applications.

As with all types of Synco™ 700 devices, once an application is created, it can be ar-

chived in the form of readable parameter sets to be reused as an adapted or identical

application for other plant.

3123P01

Summary of content (12 pages)

PAGE 1
3123P01 3 123 Synco™ 700 Switching and Monitoring Device RMS705 • Freely configurable unit thanks to extended configuration choices • Additional universal inputs for indication and monitoring /alarming • Data acquisition: Pulse counter (for display only), hours run counter, data trending, event logger (e.g. for the legionella function) • Choice of switching and monitoring functions in combination with logic operations • Lead / lag control of pumps, fans, motors, refrigeration machines, etc.
PAGE 2
Functions Universal inputs 8 to 28 *) universal inputs for: • Passive or active analog input signals of various measuring variables (°C, %, g/kg, kJ/kg, W/m2, bar, mbar, m/s, Pa, ppm, BTU, without unit, pulse) • Digital input signals (potential-free contacts) *) When using extension modules: 1 x RMZ787 + 2 x RMZ785 Additional I/Os via extension modules Additional inputs and outputs can be provided for extending the unit’s functionality. A maximum of 3 extension modules per RMS705 can be connected.
PAGE 3
7-day time switches Six 7-day time switches provide the following functions: • 6 switch-on or switch-off times per day, configurable relay output • Yearly time switch with automatic summer- / wintertime changeover • Operation selector (AUTO, ON, OFF), can be configured for manual control • Configurable holiday and special day program • From other 7-day time switches via the KNX bus as slaves (sending not possible) Logic function blocks 10 freely configurable logic function blocks are available; they are use
PAGE 4
• Forwarding the yearly clock data (time of day, weekday, date, summer- / wintertime changeover) to another controller, or reception of the yearly clock data from another controller • Reception of the 7-day program from another controller • Forwarding the yearly program for holidays / special days to another controller or reception of the yearly program for holidays / special days from another controller • Reception and forwarding of a demand signal (hot or chilled water) for the primary controller or the h
PAGE 5
Equipment combinations The table below contains the different types of devices that can be used in connection with the RMS705 and the extension modules: Type of device Type reference Setpoint adjuster, BSG21.1 passive Setpoint adjuster, active BSG61 Sensors, passive All types of sensors using a sensing element LG-Ni 1000, Pt 1000, T1 (PTC) Sensors, active All types of sensors − operating on AC 24 V − having a DC 0…10 V output Monitors QAF81..., QAF64...
PAGE 6
Mechanical design The RMS705 switching and monitoring unit consists of insert and terminal base. The terminal base has 2 terminal levels and carries the connecting elements (electrical and mechanical) for an extension module. The insert with the printed circuit boards is plugged into the terminal base. The unit can be mounted on a top hat rail (conforming to EN 60 715-TH35-7.5) or directly on the wall. Operation takes place via the plug-in type or detached operator unit (refer to section "Accessories").
PAGE 7
Mounting and installation notes 3123Z04en Page of low voltage Page of mains voltage • The RMS705 and extension modules are designed for: – Mounting in a standard cabinet conforming to DIN 43 880 – Wall mounting on an existing top hat rail (to EN 60715-TH35-7.5) – Wall mounting with 2 fixing screws – Flush panel mounting • Not permitted are wet or damp spaces.
PAGE 8
General notes Maintenance The RMS705 switching and monitoring device is maintenance-free (no battery changes, no fuses). The unit should only be cleaned with a dry cloth. Repair The unit cannot be repaired on site. Disposal The RMS705 switching and monitoring device is subject to 2002/96/EEC regulations (WEEE, Waste of Electrical and Electronic Equipment).
PAGE 9
Switch-on current Contact life at AC 250 V At 0.1 A res. At 0.5 A res. At 4 A res. Red. factor with ind. loads (cos φ = 0.
PAGE 10
Materials and colors Terminal base Insert Packaging Polycarbonate, RAL 7035 (light-grey) Polycarbonate, RAL 7035 (light-grey) corrugated cardboard Standards Product safety Automatic electrical controls for household and similar use Special requirements for energy controllers Electromagnetic compatibility For use in industrial and domestic environments Immunity Emissions Home and Building Electronic Systems (HBES) conformity EMC directive Low-voltage directive Weight EN 60 730-1 EN 60 730-2-11 EN 60 7
PAGE 11
Examples: Connections on the measuring side Diagram 1: Measuring section with passive sensor M G B1 B M G G X... M X... M AC 24 V AC 24 V B 3123A02 G Diagram 2: Measuring section with active sensor and signal source X... M G0 G N1 B3 (1) (2) (3) (4) GL GN out in 3123A11 Connection diagrams R2 G1 M X... X... M G1 G0 G0 N1 G0 Diagram 3: Measuring section with pulse source AC 24 V 3123A10 G +/- G +/- X...
PAGE 12
Dimensions 80 5 173 2 3 3 44 RMZ790 66,4 = EN 60 715-TH 35-7.