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

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)

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 !

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

(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

BM BM

X1 X2MM

X2X1

G AC 24 V

Q12 Q14

(N)

RWD82

Q11

Q22 Q24 Q12 Q14Q22 Q24

Q11Q21 Q21

G0 1. 2.

Q1 Q2 Q1 Q2

TOOL

G G

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

BM BM

X1 X2MM

X2X1

Q12 Q14

L AC 230 V

RWD32

Q11

Q22 Q24 Q12 Q14 Q22 Q24

Q11Q21 Q21

N1. 2.

Q1 Q2 Q1 Q2

TOOL

PC G0

(N)

G AC 24 V

(L) AC 230 V

G AC 24 V

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

RWD32

Q21

D1 MX1 M X2 M

Q24 Q22

Q11 Q14 Q12

RWD82

Q21

D1 M X1 M X2 M

Q24 Q22

Q11 Q14 Q12

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

111

56.5

47.931

3341m01

RWD32

155

106

174

3341m02

56.5

47.931

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