Siemens RWD32 User manual

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 1
O3341A031En2
Version 2
Installation and Commissioning Guide
RWD82
RWD32
RWD82
RWD32

Page 2 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Application
The universal controllers are used for comfort control in HVAC systems.
Two digital outputs selectable between 2 stages of on/off control or as a single 3 point controller.
The main analogue input can be set as °C, °F, % or no specified unit.
The second analogue input can be used for the following applications:
•PI Limiter function ( absolute and relative limit)
•Remote setpoint function
•Setpoint compensation
•Winter / summer mode changeover ( analogue or digital input ) ( reversal of heating / cooling output)
•Cascade control function
•Maximum priority for cooling/dehumidifying
The separate digital input is provided for day/night mode changeover
The RWD32/RWD82 controllers are intended for either DIN rail mounting in a switchboard or screw mounting with protective
enclosure.
Desired output configuration and auxiliary function must be entered for initial setup. Refer to Service (PS) mode sequence.
Application No. Summary
(H = Heating, C = Cooling, R
= Reverse Acting, D = Direct
Acting)
(The 1st digit = Main Control
Loop, The 2nd digit =
Auxiliary Control Loop)
Main
Loop #1x
H+H or R+R
depend.
#2x
H+H or R+R
independ.
#3x
H or R 3-
position
#4x
H+C or R+D
#5x
C+C or D+D
depend.
#6x
C+C or D+D
independ.
#7x
C or D 3-
position
Auxiliary Loop
#x0 No auxiliary #10 #20 #30 #40 #50 #60 #70
#x1 Remote Setpt #11 #21 #31 #41 #51 #61 #71
#x2 Absolute limiter #12 #22 #32 #42 #52 #62 #72
#x3 Relative limiter #13 #23 #33 #43 #53 #63 #73
#x4 Compensation shift #14 #24 #34 #44 #54 #64 #74
#x5 Cascade - - #35 - - - #75
#x6 Win/Sum digital - #26 #36 #46 - - -
#x7 Win/Sum analog - #27 #37 #47 - - -
#x8Max.priority ------#78
#x9 Main loop (active input) #19 #29 #39 #49 #59 #69 #79
Note: Application sheets for the listed applications are available from your local supplier.
e.g. RWD32 application 30, quote RWD32/30

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 3
Display explanation
Name Description Display, Setting Range Name Description Display, Setting Range
General Screen
Adjustable setpoint page TOOL PC communication port being used
#10 Application No 10…79 (Not consecutive
numbers)
OUT
RANGE
The setting is out of range
!Day time operation Err Sensors error


Night time operation #10 ★★= Using not the defaulted sensor
X1 Universal (Main) Input X1 •Ni 1000Ω: -50…150°C
(unchangeable)
•Pt 1000Ω: -20…180°C
(unchangeable)
•0-10 Vdc: -100…8000
WIN/SUM Winter/Summer mode being chosen
or activated
X2 Universal (Auxiliary) Input X2 •Ni 1000Ω: -50…150°C
(unchangeable)
•Pt 1000Ω: -20…180°C
(unchangeable)
•0-10 Vdc: -100…8000
•Variable resistor: the
resistance range should
within 0…1000 Ω
LIM Limiter mode being chosen or
activated
KKelvin REM Remote setpoint mode being chosen
or activated
%Percentage scale (e.g. RH) COMP Setpoint compensation mode being
chosen or activated
---- No unit (e.g. pressure, air
quality and air volume flow)
CAS Cascade mode being chosen or
activated
Sec Second MaxPrior Maximum priority mode being
chosen or activated
Q1 Digital output 1 ■is on; is off SP-h Setpoint on the heating side for
temperature control
Q2 Digital output 2 ■is on; is off SP-c Setpoint on the cooling side for
temperature control
On On status SP-r Setpoint on the reverse acting side
for active input (0…10 Vdc)
Off Off status SP-d Setpoint on the direct acting side for
active input (0…10 Vdc)
°C Celsius scale XDZ •For R or D independent loops.
Day setpoint offset from the first
output to the second output when
in REM mode.
•For R+D application. Dead zone
between R and D day setpoints
when in REM mode.
•Ni: 0.5…180 K
•Pt: 0.5…180 K
•Active input:
0.05…7300
°F Fahrenheit scale
>
>>
>
I
II
I
K
KK
K

Page 4 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Name Description Display, Setting Range Name Description Display, Setting Range
Programming Screen
PS 1 Parameter Setting Mode: Application
No. Setup
PS 4 Parameter Setting Mode: Main Control
Loop Setting
PS 2 Parameter Setting Mode: Defining
Unit, X1 and X2
PS Next To enter the next Parameter Setting
PS 3 Parameter Setting Mode: Auxiliary
Control
PS Exit To exit the whole Parameter Setting Mode
PS 4 - Main Control Loop Setup
T1 Minimum switch off time for Q1 0…255 sec TN3P I time for 3-point actuator 0…4096 sec
T2 Minimum switch off time for Q2 0…255 sec XP3P P band 3-point actuator 0.05…7300
(Depends on the X1
setting range)
TCYC Cycle time of the actuator 1…255 sec SD Switching Differential 0.05…7300
ON Dependent loop. On point of Q1 as
a % of total (Q1+Q2) SD
0…100 %
PS 3 - Auxiliary Control Loop Setup
XP-h Proportion band for heating •Ni: 0.5…180 K
•Pt: 0.5…180 K
•Active input: 0.05…7300
T Time elapsed to allow next winter/summer
changeover (Q1 only)
0…4096 sec
XP-c Proportion band for cooling •Ni: 0.5…180 K
•Pt: 0.5…180 K
•Active input: 0.05…7300
Compensation shift
(Start point, End point & Shift differential)
XP-r Proportion band for reverse acting Active input: 0.05…7300 MAX Maximum Limiter -80…8000
XP-d Proportion band for direct acting Active input: 0.05…7300 MIN Minimum Limiter -100…7980
TN-h Integral action time for heating 0…4096 sec WIN Winter changeover point -100…8000
TN-c Integral action time for cooling 0…4096 sec SUM Summer changeover point -100…8000
TN-r Integral action time for reverse
acting
0…4096 sec
TN-d Integral action time for direct acting 0…4096 sec
PS 2 - Unit, X1 & X2 sensor type and sensing range definition
UNT Unit define °C, °F, % or ----(no unit
display)
∆X1 Calibration offset for X1
(Ni & Pt sensor only)
-5…5 K or
-9°F…9°F
X1LS X1 is Landis & Staefa Ni 1000Ω
temperature sensor
Ni 1000Ω: -50…150°C
(unchangeable)
∆X2 Calibration offset for X2
(Ni & Pt sensor only)
-5…5 K or
-9°F…9°F
X2LS X2 is Landis & Staefa Ni 1000Ω
temperature sensor
Ni 1000Ω: -50…150°C
(unchangeable)
X1 L Start point of the X1
(for 0-10 Vdc only)
-100…8000
X1Pt X1 is Platinum Pt 1000Ω
temperature sensor
Pt 1000Ω: -20…180°C
(unchangeable)
X2 L Start point of the X2
(for 0-10 Vdc only)
-100…8000
X2Pt X2 is Platinum Pt 1000Ω
temperature sensor
Pt 1000Ω: -20…180°C
(unchangeable)
X1 H Stop point of the X1
(for 0-10 Vdc only)
-100…8000
X1 0-10 X1 is 0-10 Vdc input sensor 0-10 Vdc: -100…8000 X2 H Stop point of the X2
(for 0-10 Vdc only)
-100…8000
X2 0-10 X2 is 0-10 Vdc input sensor 0-10 Vdc: -100…8000 X2VR Variable Resistor 0…1000 Ω
PS 1 - Application No. Selection:
LIM
ABS
Absolute Limiter LIM
rEL
Relative Limiter
WIN/SUM
diG
Winter/Summer changeover by
digital input
WIN/SUM
AnLG
Winter/Summer changeover by analogue
input
Act Active sensor input

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 5
PS 3 Auxiliary function parameter
Auxiliary number:
Parameter Description #x1
REM #x2 LIM #x3 LIM #x4 COMP #x5 CAS #x6 WIN/SUM #x7 WIN/SUM
XDZ Dead zone or offset (refer to the above explanation) x
MAX the value to start Limiter cooling/direct acting x x
MIN the value to start Limiter heating/reverse acting x x
XP-h / -r the P-band in Limiter heating/reverse acting x x
XP-c / -d the P-band in Limiter cooling/direct acting x x
TN-h / -r integrating time heating/reverse acting x x x
TN-c / -d integrating time cooling/direct acting x x x
COMP start point heating/reverse acting x
COMP end point heating/reverse acting x
adjustment in heating/reverse acting x
COMP start point cooling/direct acting x
COMP end point cooling/direct acting x
adjustment in cooling/direct acting x
MAX maximum of virtual setpoint x
MIN minimum of virtual setpoint x
XPh1 / r1 1st heating/reverse acting P-band in Cascade x
XPc1 / d1 1st cooling/direct acting P-band in Cascade x
WIN As X2 < WIN, Q1 is reverse acting x
SUM As X2 > SUM, Q1 is direct acting x
TTime elapsed to allow next winter/summer changeover (Q1
only) xx
There are no PS3 auxiliary function parameters for applications #8 and #9.
Operating Modes
The controller has three operating buttons for the following functions:
SELECT ●
●●
●The SELECT ●
●●
●button is used to enter or save the value adjustment.
The operating buttons are used for viewing and adjusting parameters.
Time-out
For setpoint adjustment in Normal mode, the controller will exit the setting after 20 seconds automatically. However, for setpoint
adjustment in Service (PS) mode, there is no time limit. The controller remains on the PS mode until the user completes the
whole process.
Note
Only those parameters that apply to a particular program appear on the display or in the sequence in programming.
For example, if the second analogue input is not used, X2 values and selections will not appear.
A software tool (S3341A031EN0) for controller application selection and parameter adjustment is available. It is a user-friendly Windows®
95 (or above) based software tool which provides you a printout of the controller settings.
Parameters can be hidden from display if desired by using the software tool.
▲
▼
▲
▼
▼▼
▼

Page 6 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Main Display
The main display shows ,
(a) Whether Q1 or Q2 is On or Off ( = off, ■= on )
(b) Whether day or night set point is selected. (!= day, = night)
(c) X1 value in °C, °F, % or no unit.
Other displays are available by pressing the “+” button, and the various displays are listed below in sequence from the main
display.
On entering any of the four set point displays, the setpoint on display can be adjusted by pushing the ●enter/save button, increase
value by pressing the ▲“+”button or decrease the value by pressing the ▼“–” button, and when the required value is reached,
press the ●enter/save button to save the new value.
The alternative displays return to the main display after 20 seconds duration.
Press
buttons Action Typical Display Selected display comments
--- - - - Q1 X1 !
Q2
Default page includes:
X1 reading,
Q output status
Day/night setpoint selection status
▲Push “+” button to enter next page Q1 SP – h !19.0 °CSetpoint page, setting value displayed and is adjustable :
First stage heating or cooling , direct or reverse day acting setpoint,
depending on application.
▲Push “+” button to enter next page Q2 SP – c !21.0 °CSetpoint page, setting value displayed and is adjustable :
Second stage heating or cooling , direct or reverse day acting
setpoint, depending on application.
▲Push “+” button to enter next page Q1 SP – h (15.0 °CSetpoint page, setting value displayed and is adjustable :
First stage heating or cooling , direct or reverse night acting setpoint,
depending on application
▲Push “+” button to enter next page Q2 SP – c 25.0 °CSetpoint page, setting value displayed and is adjustable :
Second stage heating or cooling , direct or reverse night acting
setpoint, depending on application
▲Push “+” button to enter next page X1 20.0 °CX1 – main sensor reading
▲Push “+” button to enter next page X2 20.0 °CX2 – auxiliary sensor reading
▲Push “+” button to enter next page Q1 on Output page: output status displayed
First stage Q1 digital status - on or off.
▲Push “+” button to enter next page Q2 oFF Output page: output status displayed
Second stage Q2 digital status - on or off.
▲Push “+” button to enter next page #43 Application number and control sequence diagram.
After 20 seconds any page will
return to the main default page if
left unattended.
Q1 X1 !
Q2 Back to main default page

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 7
- Max/Min limiter
- Proportion band
- Integral time
- Compensation shifts start/end point
- Winter/Summer changeover temp.
and time delay
Auxiliary loop
- Day/night setpoint
- Winter/summer setpoint
- Define the unit as oC, oF, %
or no unit
- Sensor type
- Sensing range
- Calibration offset
Define unit, X1 & X2
- Application no. selection
Application no.
- Switching differential
- Switching delay time
- Dependent loop Q1 on point
- P band for 3-point control
- I action time for 3-point control
- 3-point actuator cycle time
- Day/night setpoint
- Winter/summer setpoint
Main loop
C
Q1
Q2
X1
(wait 2 second)
New controller application
and setpoint sequence
* New controller
Normal programming
Service (PS) Mode screen sequence
Press both buttons and hold them for 5 sec to enter the Service Mode.
Press ▲for viewing the next page and parameter OR to increase value.
Press ▼for viewing the previous page and parameter OR to decrease value.
Press ●to enter the PS page OR edit and save the value when the page appears with the logo
On entering service (PS) mode, PS4 appears first.
For initial setup, proceed directly to PS1 and enter your desired application number first.
PS1 will already be opened if power has never been connected to new controller.(Refer below *)
PS2 to PS4 parameters may need to be adjusted for service/commissioning purposes.
▲
▼

Page 8 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Connection Diagram
RWD82 Connection Diagram
G
S1
D1
G0
BM BM
X1 X2MM
X2X1
M
G0
G AC 24 V
Q12 Q14
(N)
RWD82
Q11
Y1
Y1
Q22 Q24 Q12 Q14Q22 Q24
Q11Q21 Q21
Y2
G0 1. 2.
Q1 Q2 Q1 Q2
E1
N1
TOOL
PC
G G
G0
G AC 24 V
(L) AC 230 V
RWD82 – AC 24 V supply
RWD32 – AC 230 V supply
N1 RWD82/32 controllers
X1 Main temperature sensor
(Termination G appears when X1
is an active sensor)
X2 Auxiliary temperature sensor or
remote setpoint (Termination G
appears when X2 is an active
sensor)
S1 Time clock or switch
Q1/Q2 Potential-free relay contacts for 3-
position or
2-position control in 2 steps
Y1 Actuator with 3-position control
(AC 24...230 V)
E1 Electrical load 2-position control
PC Desktop or notebook computer
Note: Output relay contacts (potential free)
can be supplied with AC 24 to 230 volts.
RWD32 Connection Diagram
L
S1
D1
N
BM BM
X1 X2MM
X2X1
M
Q12 Q14
L AC 230 V
N
RWD32
Q11
Y1
Y1
Q22 Q24 Q12 Q14 Q22 Q24
Q11Q21 Q21
Y2
N1. 2.
Q1 Q2 Q1 Q2
E1
N1
TOOL
PC G0
(N)
G AC 24 V
(L) AC 230 V
G AC 24 V
G0
GG
Please note that the TOOL signal
ground is galvanically connected to G0
inside the controller. If the signal line of
the computer is grounded to Earth, the G0
line after TOOL connection will be Earthed
as well.
This will change the SELV to a PELV.

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 9
Internal Diagram / Terminals
RWD82 – AC 24 V supply RWD32 – AC 230 V supply
N
RWD32
Q21
D1 MX1 M X2 M
L
Q24 Q22
Q11 Q14 Q12
G0
RWD82
Q21
D1 M X1 M X2 M
G
Q24 Q22
Q11 Q14 Q12
Tool
Tool
G-G0 AC 24 V supply
(SELV AC 24 V Power supply)
L-N AC 230 V supply
M Ground (G0) for signal inputs and universal inputs
X1 Signal input (main input: LS Ni 1000, Pt 1000 and 0 …10 Vdc)
X2 Signal input (aux. Input: LS Ni 1000, Pt 1000, 0 …10 Vdc and remote setting unit)
Q... Digital output, various voltages permissible
D1 Digital input
Tool communication port with PC (9-pin plug)

Page 10 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Controller Dimension
RWD82
130
106
89
111
56.5
47.931
3341m01
44
RWD32
155
106
89
174
3341m02
56.5
47.931
44

Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 11
Mounting Possibilities
AB C D
3341z02
There are four possibilities for mounting the RWD82/RWD32 controller
Mounting Installation
The RWD32/82 controllers can be mounted as follows:
Observe all local installation and mounting regulations.
A On DIN rail (EN 50 022-35 x 7.5) at least 120 mm long for RWD82 and 170 mm long for RWD32
B For wall mounting with 2 screws
(Minimum length of the screw should be 40mm long(φ3.2mm.)
C Front mounted using standard elements
e.g. 1x DIN rail 150 mm long for RWD82 and 195 mm long for RWD32,
2 x hexagonal placeholders 50 mm, washers and screws
(Ensure all terminations are tightened before final mounting to front panel)
D Inside the ARG62.21(RWD82 only) / ARG62.22
Note: There must be a minimum of 8mm distance from terminations to panel/enclosures in order to avoid electric shock.
Electrical installation
Standard cables can be used for the controller. However, when mounting in an environment greatly exposed to EMI, use only shielded
cables.
•The RWD32 is designed for AC 230 V operating voltage.
•The RWD82 is designed for AC 24 V operating voltage.
The low voltage must comply with the requirements for safety extra-low voltage (SELV) as per EN 60730.
Use safety insulating transformers with double insulation as per EN 60742; they must be designed for 100 % on-time.
When using several transformers in one system, the connection terminals G0 must be galvanically connected.
Supplying voltages above AC 24 V to low voltage connections may damage or destroy the controller or any other connected devices.
Additionally, connections to voltages exceeding AC 42 V endanger personal safety.

Page 12 8-Jun-01 O3341(RWD32) V14.doc O3341A031En2 Siemens Building Technologies
Mounting Enclosure Dimensions
150
200
ARG62.21
59.7