Siemens Synco 700 RMZ785 Operator's manual

s
Synco™ 700
Switching and monitoring device RMS705B
incl. extension modules RMZ785, RMZ787und RMZ788
Basic documentation
CE1P3124en
01.04.2010 Building Technologies

Contents
1Overview ..................................................................................................6
1.1 RMS705B – Features and functions.........................................................6
1.2 Product range............................................................................................8
1.3 Synco™ 700 topology...............................................................................9
1.4 Equipment combinations.........................................................................10
1.5 Product documentation...........................................................................11
1.6 RMS705B applications in HIT.................................................................11
1.7 Performance............................................................................................12
1.8 Important notes.......................................................................................13
2Operation...............................................................................................14
2.1 Operation without operator unit...............................................................14
2.2 Operation with operator unit....................................................................15
3Commissioning.....................................................................................18
3.1 Start commissioning................................................................................18
3.2 Basic configuration..................................................................................19
3.3 Free configuration...................................................................................20
3.4 Wiring test...............................................................................................20
3.5 Exit commissioning .................................................................................21
3.6 Data backup............................................................................................21
3.7 Exit password level .................................................................................22
3.8 Device information ..................................................................................22
4General settings....................................................................................23
4.1 Time and date .........................................................................................23
4.2 Select language ......................................................................................25
4.3 Select temperature unit...........................................................................26
4.4 Operator unit display contrast.................................................................26
4.5 Text entry.................................................................................................26
5Inputs......................................................................................................28
5.1 Universal inputs.......................................................................................28
5.2 Analog inputs ..........................................................................................31
5.3 Digital inputs............................................................................................35
5.4 Pulse.......................................................................................................37
5.5 Remote setpoint adjuster, absolute.........................................................38
5.6 Outside temperature ...............................................................................40
5.7 Assign texts.............................................................................................42
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6Data acquisition.....................................................................................43
6.1 Trend.......................................................................................................43
6.2 Event logger............................................................................................45
6.3 Operating hours ......................................................................................49
6.4 Meters .....................................................................................................52
6.5 Calculator................................................................................................55
77-day time switch ..................................................................................60
7.1 Time switch .............................................................................................60
7.2 Holidays/special days..............................................................................63
8Aggregates.............................................................................................67
8.1 Logic........................................................................................................67
8.2 Comparator .............................................................................................74
8.3 Rotary step switch...................................................................................78
8.4 Motor.....................................................................................................106
8.5 Modulating output..................................................................................124
9Signal converter..................................................................................127
9.1 Min-max-average..................................................................................127
9.2 Enthalpy calculator................................................................................131
9.3 Signal doubler/inverter..........................................................................134
10 H/C demand, H/C changeover............................................................137
10.1 Heat demand function...........................................................................137
10.2 Refrigeration demand function..............................................................143
10.3 H/C demand application examples .......................................................149
10.4 H/C changeover....................................................................................158
10.5 Combined examples: H/C demand, H/C changeover...........................163
11 Universal controller ............................................................................165
11.1 Overview ...............................................................................................165
11.2 Makeup and mode of operation of the controller ..................................167
11.3 Universal shift........................................................................................170
11.4 General limiter.......................................................................................172
11.5 Eco setpoint changeover.......................................................................175
11.6 Start the universal controller..................................................................176
11.7 Assign texts...........................................................................................176
12 Faults....................................................................................................177
12.1 Purpose and enabling...........................................................................177
12.2 Fault priorities and acknowledgement ..................................................177
12.3 Universal fault inputs (1…20)................................................................178
12.4 External fault button..............................................................................180
12.5 Fault relay..............................................................................................180
12.6 Function check / wiring test...................................................................181
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13 Communication...................................................................................182
13.1 Enable communication..........................................................................182
13.2 "Communication" menu settings...........................................................182
14 Support for errors and faults.............................................................191
14.1 Error/fault code list................................................................................191
14.2 Troubleshooting ....................................................................................193
14.3 Resolve errors.......................................................................................195
15 Electrical connections........................................................................196
15.1 Connection rules...................................................................................196
15.2 Connection terminals ............................................................................197
16 Appendix..............................................................................................198
16.1 Abbreviations ........................................................................................198
16.2 Configuration diagram...........................................................................199
16.3 Menu tree..............................................................................................207
16.4 Editable texts RMS705B.......................................................................207
Index ..............................................................................................................214

1 Overview
1.1 RMS705B – Features and functions
RMS705B helps switch and monitor plant elements in heating, ventilating and air
conditioning plants.
RMS705B
RMS705B is freely configurable (no standard applications).
RMS705B typically is used for the following tasks:
Non-standard applications of the SyncoTM 700 system
Alarming and monitoring
Switching functions (time switch, logical blocks, motors, etc.)
Thanks to the KNX bus, bus communications of the controlled system can be used
easily.
Possible thanks to KNX
End users, engineering, service and commissioning staff all profit from menu-
driven clear text operation!
User-friendly at all
levels
Various switching and monitoring functions combined with mathematical and
physical operations (calculations, minimum, maximum and average calculations,
enthalpy).
Key features
Lead/lag control of pumps, fans, motors, refrigeration machines, etc. with
runtime balancing.
3 universal controllers with limiting function.
Data acquisition: Pulse count (for display purposes), operating hours count,
trend display of data as well as event logging (e.g. for legionella function).
Freely configurable, thanks to extended configuration options.
For additional, universal inputs for displaying and monitoring/alarming.
Modular extendable with extension modules RMZ785, RMZ787, and RMZ788.
Menu-driven operation with separate operator unit: Plug-in type or detached
mounting.
KNX bus connection for operation and process information.
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Data acquisition
Functions – Pulse meter (for display only, not for billing purposes).
– Hours run counter.
– Trend data display.
– Event logging (e.g. for legionella function).
Control and monitoring functions
– Universal motor blocks.
– Rotary step switch (with lead/lag control of pumps, fans, motors, refrigeration
machines, etc.).
– Logic function blocks.
– 7-day time switches.
– Comparison (comparison of analog input signals).
– Calculators (default formulas, user-defined formulas).
– Minimum/maximum, averaging.
– Enthalpy calculation.
– Signal inverter/signal doubler.
– Heating and cooling demand from and via KNX bus.
– Heating / cooling changeover.
– Fault messages (additional universal alarm inputs).
Control functions
– Universal controller (limiting function, universal shift, etc.).
Bus functions
– Universal bus applications.
– KNX data exchange zones (send and receive LTE bus information).
Service and operating functions
– Outside temperature simulation, input terminal simulation, etc.
1x RMS705B (8 universal inputs, 6 digital outputs, 4 analog outputs) +.
Module combination 4x extension modules (maximum extension).
(Selection from 1x RMZ785, 2x RMZ787 and 2x RMZ788).
Maximum extension results:
Maximum 28 universal inputs
(LG-Ni1000, 2x LG-Ni1000, Pt1000, T1, DC 0...10 V, 0…1000 Ω, pulse, digital)
Maximum 18 relay control outputs
Maximum 8 modulating outputs DC 0...10 V
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1.2 Product range
The overview shows the units offering comprehensive solutions with RMS705B:
Control units,
accessories
Room unit Name Type Data sheet
Switching/control unit Switching and monitoring unit RMS705B N3124
Extension modules Universal module RMZ785 N3146
Universal module
RMZ787 N3146
Universal module
RMZ788 N3146
Module connector
RMZ780 N3138
Operator units Operator unit, plug-in type RMZ790 N3111
Operator unit, detached RMZ791 N3112
Bus operator unit RMZ792 N3113
Service unit Service tool OCI700.1 N5655
Central communication unit Central communication unit OZW775 N5663
Web server OZW772… N5701
RMS705B
RMZ785 RMZ787 RMZ788 RMZ780
RMZ790 RMZ791 RMZ792
OCI700.1 OZW775 OZW772
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1.3 Synco™ 700 topology
The following topology shows how the RMS705B is used:
RMZ791 RMZ790
OCI700.1
RXB...OZW772...
RMU7...
RXB...
RMZ78...
RMZ792
Ethernet
Router
Internet
RMS705B Switching and monitoring unit RXB… Room controller
RMZ790 Operator unit, plug-in type RMU7... Universal controller
RMZ791 Operator unit, detached RMH… Heating controller
RMZ792 Bus operator unit RMK… Boiler sequence controller
RMZ78... Extension modules RMB… Central control unit
OCI700.1 Service tool
OZW772… Web server
Key
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1.4 Equipment combinations
The following table lists equipment that can be combined with the RMS705B and
extension modules:
Room unit Type Data sheet
Passive sensors All sensors with sensing element
LG-Ni1000, Pt1000, T1 (PTC) N1721...N1846, N1713
Active sensors All sensors with
- AC 24 V supply voltage
- modulating output DC 0...10 V
N1821,
N1850...N1932
Monitoring devices QAF81..., QAF64...,
QFA1000, QFA1001, QFM81…,
QXA2000,
QBM81...
N1284, N1283,
N1518, N1514,
N1542,
N1552
Passive signal sources BSG21.1 N1991
Active signal sources BSG61 N1992
Room units QAA25, QAA27 N1721
Actuating equipment All motorized, hydraulic and magnetic
actuators with
- operating voltageAC 24 V
- for modulating control DC 0...10 V.
N4000...N4999
Variable speed drive SED2… N5192
Transformers SEM62.1, SEM62.2 N5536
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1.5 Product documentation
The following product documentation provides detailed information on safe and
intended use and operation of Synco™700 products in building services plants in
addition to the basic documentation.
Supplementary
information
Type of document Document no.
Product range description HVAC control with Synco CE1S3110en
Basic documentation RMS705B (this document) CE1P3124en
Basic documentation universal controller RMU7...B CE1P3150en
Basis documentation: Communication via KNX bus CE1P3127en
Data sheet for switching & monitoring unit RMS705B CE1N3124en
Data sheet for universal modules RMZ78… CE1N3146en
Data sheet for module connector RMZ780 CE1N3138en
Data sheet for universal controller RMU7…B CE1N3150en
Data sheet for KNX bus CE1N3127en
Installation instructions G3151 for RMS705B 74 319 0731 0
Mounting instructions for extension modules RMZ78... 74 319 0353 0
Mounting instructions for module connector RMZ780 74 319 0380 0
Mounting instructions for detached operator unit RMZ791 74 319 0339 0
Installation instructions for bus operator unit RMZ792 74 319 0523 0
CE declaration of conformity for SyncoTM 700 CE1T3110xx
Environmental declaration for controller RM… CE1E3110en01
Environmental declaration for extension modules RMZ78... CE1E3110en02
Environmental declaration for operator unit RMZ790 CE1E3110en03
Environmental declaration for operator unit RMZ791 CE1E3110en04
Environmental declaration for operator unit RMZ792 CE1E3113en
1.6 RMS705B applications in HIT
A number of RMS705B applications are available via HIT (HVAC Integrated Tool).
These applications are intended as suggestions (no default applications).
Internet address for HIT: https://www.siemens.com/HIT
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1.7 Performance
Summary of features and functions of the RMS705B:
Overview
Features/Functions RMS705B
Max. 4 connectable extension modules. Selection from:
Extension with 1 universal module RMZ785
with 8 universal inputs.
Extension with 2 universal modules RMZ787
with 4 universal inputs and 4 relay outputs each.
Extension with 2 universal modules RMZ788
with 4 universal inputs, 2 analog outputs, and 2 relay outputs each.
Universal inputs (RMS705B and extension modules) Max. 28
(8 + 8 + 4 + 4 + 4)
As analog input DC 0...10 V 
As analog input LG-Ni1000 
As analog input Pt1000 
As analog input T1 
As analog input 2x LG-Ni1000 
As remote setpoint adjusted input, absolute 
As digital input 
As pulse input 
Relay outputs (RMS705B + extension modules) Max. 18
(6 + 4 + 4+ 2 + 2)
Modulating outputs (RMS705B + extension modules) Max. 8
(4 + 2 + 2)
Fault messages 
Free fault inputs (digital or analog) 20
Fault status signal relay 2
Online trend channels 4
Event logger 4
Operating hours with maintenance message 4
Pulse counter with storage of 15 monthly values 4
Time switches (for weekdays, holidays/special days) with operation selector 6
Calendar 
Logic block for operations (AND, NAND, OR, NOR, EXOR, EXNOR)
with operation selector 10
Comparator for comparing two analog variables 2
Universal controller with 1 heating and 1 cooling sequence \_/ 3
General limiting function (min/max) with PI-response 
Absolute or differential control 
Universal setpoint shift 
Remote setpoint adjuster 
Setpoint changeover 
Rotary step switch (lead/lag) 2
Changeover for 4 aggregates 
Heating demand signal: Relay and modulating 
Cooling demand signal: Relay and modulating 
Changeover for 2-pipe system H/C 
Motors with control functions for: 6
Motor, single-stage 
Motor, two-stage 
Twin motors with priority changeover 
Calculators 2
Min., max., and average calculation. 2
Enthalphy calculator 
Signal inverter/signal doubler 
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1.8 Important notes
This symbol draws your attention to special safety notes and warnings. Failure to
observe such notes may result in personal injury and/or considerable damage to
property.
Synco™ 700 products may only be used for control and supervision of heating,
ventilation, air conditioning and chilled water plants.
Field of use
Proper transport, installation and commissioning as well as correct operation are
prerequisite for flawless and safe operation of Synco™ 700 products.
Intended use
Fuses, switches, wiring and earthing must comply with local safety regulations for
electrical installations.
Electrical installation
Only qualified staff trained by Siemens Switzerland Ltd may prepare for use and
commission Synco™ 700 products.
Commissioning
Synco™ 700 products may only be operated by staff instructed by Siemens
Switzerland Ltd or its delegates and who understand the potential risks.
Operation
When wiring the system, strictly segregate the AC 230 V section from theAC 24 V
safety extra-low voltage (SELV) section to ensure protection against electric shock
hazard!
Wiring
Refer to the environmental conditions specified in the respective data sheets for
storage and transport.
Storage and transport
If in doubt, contact your supplier or Siemens Switzerland Ltd.
Synco™ 700 products are maintenance-free and only require regular cleaning.
Keep free of dust and dirt any system sections in the control panel whenever
normal service visits are due.
Maintenance
Call service staff responsible for your plant in case of system faults; do not
diagnose and correct faults.
Faults
Only authorized staff are permitted to diagnostics, correct faults and restart the
plant. This applies as well to work carried out within the panel (e.g. safety checks
or replacement of fuses).
Do not dispose of the products as domestic waste as they contain electrical and
electronic components.
Disposal
Observe all local, applicable laws.
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2 Operation
Synco™ 700 units may only be operated by staff instructed by Siemens
Switzerland Ltd or its delegates and who understand the potential risks.
2.1 Operation without operator unit
The following operating elements on the RMS705B and extension module can be
used with the operator unit:
Switching and monitoring unit Extension module
1 LED "RUN" device operating status display; with the following meanings:
LED lit: Power on, no fault and periphery.
LED off: No power or fault in the application / or periphery.
Key
2 Button " " with LED (red) to display fault status message and its
acknowledgement:
LED flashes: Fault status message ready to be acknowledged.
LED lit: Fault status message pending, but not yet reset.
LED off: No fault status message.
Press button: Acknowledge fault or reset.
3 Programming button (Prog) to assign the device address in KNX system mode
(tool required).
4 Programming LED (Prog) to display programming process, with
meaning: LED remains lit until addressing is completed.
5 LED (Run) to monitor power supply and addressing; with the following
meaning:
LED lit: Power on, addressing successful.
LED flashes: Supply voltage available, but RMS705B has no valid
KNX address.
LED off: No power.
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2.2 Operation with operator unit
2.2.1 Operator unit functions
Use a plug-in or detached operator unit to operate the RMS705B (set and read).
The operator unit does not save data: Entries are transferred from the operator unit
to the RMS705B on site and processed accordingly. User information is displayed
on the operator unit.
2.2.2 Operating concept
All setting and readout values are presented as operating lines on the menu. Using
the operating elements, every operating line can be selected, displayed or set.All
menus appear on the LCD as plain text.
Fundamentals
RMS705B contains several programmed languages. Select the desired language
during commissioning.
3111Z07
2
1
5
3
4
Plug-in type operator unit
RMZ790
3
4
2
5
1
3112Z08
Detached operator unit
RMZ791
or
bus operator unit
RMZ792
Operator elements
1 Display
2 INFO button
Function 1: Display of important plant data.
Function 2: Query explanations on individual operating lines in the
current menu.
3 OK press-and-turn knob
Turn: Select operating line or readjust value.
ress: Confirm operating line or setting.P
4 ESC button
Return to previous menu.
5 Fault button " " with LED
LED: Fault display.
ress: Acknowledge fault or reset.P
Key
The backlit display automatically switches on when using one of the operating
elements. It switches off and the start page appears when inactive for 30 minutes.
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Below are a few typical displays and their explanation:
Display examples
Display Explanation
Wednesday 06.01.2010 14:52
Welcome
« Information
Main menu
Start page
Main menu
Time switch 1...
Inputs...
Data acquisition...
Aggregates...
Setting level
Select setting parameters,
e.g. on the main menu of the user level.
Entry 1
Start: ––.––.–– ––.––
End: ––.––.–– ––.––
Reason: Holidays
Delete entry...
Setting level
Popup, set a numerical value.
Main menu> Controller 1
Current setpoint:
568
Setting level, press INFO button:
Help display offering explanations on the selected
setting parameter (for as long as INFO is pressed).
Note: The text ID for either menu or setting
parameter is displayed in the lower right corner.
Time switch 1
Saturday
Info level
Query important plant data
(here: Time switch settings).
Note: Turn the knob to display other information
pages.
25.02
2.2.3 Operating levels
There are two operating levels:
Info level
Setting level
Both levels are accessible from any access level.
The Info level provides important plant data information.Info level
Setting level The setting level is set up as a menu. You can navigate to operating lines and
change their values. The INFO button queries menu explanations on the individual
operating lines. The information is displayed as long as you pres the button.
Switching from the info level to the setting level:
Switch between the
operating levels 1. Press the ESC button to select the start page.
2. Press the OK knob to go to the setting level.
Switch from the setting level to the info level:
1. Press the ESC button to select the start page. Press the button repeatedly until
the start page reappears.
2. Press the INFO button to go to the Info level.
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2.2.4 Access level
An access right is defined for each parameter (operating line). There are 3 access
levels:
Access level Access Symbol
User level
(for plant
operators)
The user level is always accessible.
Users can adjust visible, editable operating lines.
Service level
(for maintenance
tasks)
Press the OK knob and the ESC button at the
same time, then select operating line "Service
level" and confirm by pressing the OK knob.
Password level
(for
commissioning)
Press the OK knob and the ESC button at the
same time, select operating line "Password level"
and confirm by pressing the OK knob. Enter "7"
as password and confirm by pressing the OK
knob.
The access level determines which individual menus and operating lines are
activated. At a higher access level, all menus and operating lines of the lower
access levels are visible.
The levels use a common menu tree as a base (the password level shows the
entire menu tree).
Switch from the current access level to another access level:
Switch to another access
level 1. Press both OK knob and ESC button simultaneously.
The "Access levels" menu is displayed.
2. Select the required access level by turning the OK knob and press to confirm.
3. Enter "7" to access the "Password level".
RMS705B times out after 30 minutes without user interaction and enters "User
level".
Note
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3 Commissioning
Only qualified staff trained by Siemens Switzerland Ltd may prepare and
commission Synco™ 700 products.
3.1 Start commissioning
During commissioning, both control and plant safety functions remain deactivated!
3.1.1 Start at initial power-up
RMS705B starts with menu "Language" (to commission or operate the plant) when
the unit is first powered.
– Select the language by turning the OK knob and confirm your selection.
– Set and confirm time, date, and year using the OK knob.
The "Commissioning" menu is displayed. The access level is set to "Password
level".
Follow the installation instructions G3151, 74 319 0731 0 (added to device
package) to initially commission the RMS705B.
Note
3.1.2 Start from the main menu
After selecting menu "Commissioning" (only visible on the "Password level") and
confirming by pressing the OK knob, a reference to plant stop is displayed.
Caution!
Plant stops
ESC OK
Press OK again to stop the plant (application).All outputs are set to a defined OFF
state and the display shows the "Commissioning" menu.
Commissioning
Basic configuration...
Extra configuration...
Settings...
Communication...
Setting level:
Commissioning menu.
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3.2 Basic configuration
Use the "Basic configuration" menu for the following settings:
Select basic type (only basic type S is available).
Assign extension modules to the controller position.
Internal configurations are deleted if you decide to later reset RMS705B to basic
type S.
Note
Main menu > Commissioning > Basic configuration >
Configuration Operating line Adjustable values / remarks
Basic type S
Position 1 ---, RMZ785, RMZ787(1), RMZ788(1)
Position 2 ---, RMZ785, RMZ787(1), RMZ787(2), RMZ788(1), RMZ788(2)
Position 3 ---, RMZ785, RMZ787(1), RMZ787(2), RMZ788(1), RMZ788(2)
Position 4 ---, RMZ785, RMZ787(1), RMZ787(2), RMZ788(1), RMZ788(2)
3.2.1 Assign extension modules
You can extend RMS705B by appending extension modules.
Max. 4 extension modules can be connected to each RMS705B. Select from:
1x RMZ785: Universal module with 8 universal inputs.
2x RMZ787: Universal module with 4 universal inputs, 4 relay outputs.
2x RMZ788: Universal module with 4 universal inputs, 2 modulating
outputs, 2 relay outputs
The extension modules are activated when physically plugged in and configured in
terms of software (type, position).
Position 1 Position 2 Position 3 Position 4
Example
RMS705B RMZ785 RMZ787 (1) RMZ787 (2) RMZ788 (1)
Disconnect the system from power prior to attaching an extension module.
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3.2.2 Troubleshooting
If the extension modules and their positions do not match the values entered in the
basic configuration, or if an extension modules fails during operation, a fault is
generated and handling is stopped. The outputs maintain the state prior to the fault.
No. Name Effect
7101
7102
7103
7104
Fault extension
module Urgent message; must be acknowledged.
Fault messages
3.3 Free configuration
You can freely configure RMS705B within the possibilities of the available function
blocks.
Use the configuration diagram to adjust RMS705B to the plant (see Section 16.2
Configuration diagram").
3.4 Wiring test
Test the wiring after all peripheral devices are connected. We recommend to run
this test after completing the configuration and settings.
Reading values are displayed for the inputs; aggregates (fans, pumps, etc.)
onnected to the outputs can be switched on and off.c
During the wiring test, the application is inactive, and the outputs are in a defined
OFF state; safety-related functions are deactivated!
The wiring test checks the inputs and outputs for the following types of errors:
Connection errors, i.e. exchanged lines.
Position errors, i.e. mixed up sensor or actuator connections.
Discrepancy between actual type of connection and controller configuration (e.g.
LG-Ni 1000 in place of active DC 0...10 V).
Main menu > Commissioning > Wiring test > Inputs >
Wiring test Operating line, e.g. Comment
N.X1 Display of the current measured value
Main menu > Commissioning > Wiring test > Outputs >
Operating line, e.g. Positions
Fault relay 1 Off, On
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3.5 Exit commissioning
If the application is valid, quit the Commissioning menu as follows:
– Press the ESC button.
The display shows a dialog box with the following information:
Caution!
Plant starts
ESC OK
– Press the OK knob to confirm.
RMS705B boots using the settings, the plant is started, and the main menu is
displayed.
Main menu
Commissioning...
[Time swi 1] op sel...
Time switch 1...
Op selector 2...
3.6 Data backup
The entire commissioning data set (configuration and all settings) can be saved in
RMS705B after commissioning. Use this function to restore the proper controlled
state of the RMS705B after commissioning if important values are changed later
on.
The following values are not saved or restored during backup:
All user-defined texts and business cards.
Calendar and time switch settings.
Basic settings in the "Communication" menu.
Current time.
Trend settings.
Values in the "Settings > Device" menu.
Main menu > Data backup >
Setting values Operating line Range Factory setting
Restore
Save
Main menu > Data backup >
Display values Operating line Comment
Storage date Displayed date when the commissioning data set was
written in the device’s memory.
Storage year Displayed year when the commissioning data set was
written to the device's memory.
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