Siemens RWD62U Bedienungsanleitung

RWD62U Controller

Installation and

Commissioning Guide

Document No. 129-410

October 1, 2004

Item Number 129-410, Rev. 010

Function The RWD62U is a three-input, two-output device used to control temperature, humidity,

air pressure, fluid pressure, air/fluid velocity, and air quality in commercial and industrial

facilities.

Application The RWD62U is used for comfort control in HVAC systems. Two analog outputs with

0 to 10 Vdc voltage are provided for either two-stage heating or cooling, or heating and

cooling. The main analog input (X1) can be set as °F, °C, % or none specified (-----).

The default is °F.

The second analog input (X2) can be used for the following applications:

•PI Limiter function (absolute and relative limit)

•Remote setpoint function

•Setpoint compensation

•Winter/summer mode changeover (analog or digital input) (reversal of

heating/cooling output)

•Cascade control function

•Maximum priority for cooling/dehumidifying

A separate digital input is provided for day/night mode changeover.

The RWD62U controller is intended for either DIN rail mounting in a switchboard or

screw mounting with a protective enclosure.

Desired output configuration and auxiliary function must be entered for initial set-up.

See Service (PS) Mode Screen Sequence.

Document Number 129-410 RWD62U Controller Installation and Commissioning Guide

October 1, 2004

Page 2 of 10 Siemens Building Technologies, Inc

Table 1. Application Numbers.

Main Loop

H = Heating

C = Cooling

(First digit =

Main control loop

Second digit = Auxiliary

control loop) SP SP SP SP

SP SP

Auxiliary Loop #1 ×

H Sequence #2 ×

H + H

Sequences

# 3 ×

H + C Sequences #4 ×

C Sequence #5 ×

C + C

Sequences

#x0 (No auxiliary) #10 #20 #30 #40 #50

#x1 (Remote setpoint) #11 #21 #31 #41 #51

#x2 (Absolute limiter) #12 #22 #32 #42 #52

#x3 (Relative limiter) #13 #23 #33 #43 #53

#x4 (Comp. shift) #14 #24 #34 #44 #54

#x5 (Cascade) #15 #25 #35 #45 #55

#x6 (Win/Sum Digital) #16 #26 #36 – –

#x7 (Win/Sum Analog) #17 #27 #37 – –

#x8 (Maximum priority) – – #38 #48 #58

#x9 Main loop (Active input) #19 #29 #39 #49 #59

NOTES:

1. Application sheets for the listed applications are available online.

2. The heating sequence output is set to Direct Acting (default). This is typically used for normally open

valves. Output can be set to reverse acting by changing the MIN and MAX value. See PS4.

3. The cooling sequence output is set to Direct Acting (default). This is typically used for normally closed

valves. Output can be set to reverse acting by changing the MIN and MAX value. See PS4.

RWD62U Controller Installation and Commissioning Guide Document Number 129-410

October 1, 2004

Siemens Building Technologies, Inc. Page 3 of 10

Display Explanation

Symbol Description Setting Range Symbol Description Setting Range

Main Screen

Adjustable setting screen TOOL PC communication port

being used

#10 Application Numbers 10 through 59 (Not

consecutive numbers) OUT RANGE The setting is out of range

 Daytime operation Err Sensor error

eNight time operation #10* * = Using, not the defaulted

sensor

X1 Universal (Main) Input X1 Siemens Ni 1000 Ω: -58°F

to 302°F (-50°C to 150°C)

(unchangeable)

Pt 1000 Ω: -4° to 356°F-

(20°C to 180°C)

(unchangeable)

0 to 10Vdc: -100 to 8,000

WIN/SUM Winter/Summer mode being

chosen or activated

X2 Universal (Auxiliary) Input

X2 Siemens Ni 1000 Ω: -58°F

to 302°F (50°C to 150°C)

(unchangeable)

Pt 1000 Ω: -4° to 356°F-

(-20°C to 180°C)

(unchangeable)

0 to 10Vdc: -100 to 8,000

Variable resistor:the

resistance range should be

within 0 to 1000 ohm

LIM Limiter mode being chosen or

activated

---- No unit (e.g. pressure, air

quality and air volume flow) REM Remote setpoint mode being

chosen or activated

Sec Second CAS Cascade mode being chosen

or activated

Y1 Analog output 1 0 to 10 Vdc MaxPrior Maximum priority mode being

chosen or activated

Y2 Analog output 2 0 to 10 Vdc SP-1 Setpoint 1

°C Celsius scale SP-2 Setpoint 2

°F Fahrenheit scale SP-h Setpoint on the heating side

for temperature control

K Kelvin SP-c Setpoint on the cooling side

for temperature control

% Percentage scale XDZ For H + C application. Dead

zone between H and C day

setpoints when in REM

mode.

Ni: 0.5 to 180 K

Pt: 0.5 to 180 K

Active input: 0.05 to 7,300

Commissioning Screen

PS1 Parameter setting

mode: Application No.

set-up

PS4 Parameter setting mode:

Main control loop setting

PS2 Parameter setting

mode: Defining Unit X1

and X2

PS Next To enter the next

parameter setting

PS3 Parameter setting

mode: Auxiliary control PS Exit To exit the whole

parameter setting mode

Document Number 129-410 RWD62U Controller Installation and Commissioning Guide

October 1, 2004

Page 4 of 10 Siemens Building Technologies, Inc

Display Explanation, Continued

Symbol Description Setting Range

PS4 – Main Control Loop Set-up

TN Integral action time for

Y1, Y2 0 to 4,096 seconds

MIN Output end point for

Y1 or Y2 0 to 100%

XP Proportional band for

Y1, Y2 0.05 to 7,300 (depends

on the X1 setting

range)

MAX Output end point for

Y1 or Y2 MIN to 100% or 0% to MIN

PS3 – Auxiliary Control Loop Set-up

XP-h Proportion band for heating Ni:1°F to 360°F

(0.5 K to 180 K)

Pt: 1°F to 360°F

(0.5 K to 180 K)

Active input: 0.05 to 7,300

T Time elapsed to allow next

winter/summer changeover

(Y1 only)

0 to 4,096 sec

XP-c Proportion band for cooling Ni:1°F to 360°F

(0.5 K to 180 K)

Pt: 1°F to 360°F

(0.5 K to 180 K)

Active input: 0.05 to 7,300

Compensation shift

(Start point, End point and

Shift differential)

XP-1 Proportion band for Y1

output Active input: 0.05 to 7,300 MAX Maximum Limiter -80 to 8,000

XP-2 Proportion band for Y2

output Active input: 0.05 to 7,300 MIN Minimum Limiter -100 to 7,980

TN-h Integral action time for

heating 0 to 4,096 sec WIN Winter changeover point -100 to 8,000

TN-c Integral action time for

cooling 0 to 4,096 sec SUM Summer changeover point -100 to 8,000

TN-1 Integral action time for Y1

output 0 to 4,096 sec

TN-2 Integral action time for Y2

output 0 to 4,096 sec

PS 2 – Unit X1 and X2 Sensor Type and Sensing Range Definition

Unit Define unit °F, °C, %, or --- (no unit

display)

∆X1 Calibration offset for X1

(Ni and Pt sensor only) -9°F to 9°F

-5 to 5 K

X1LS X1 is Siemens Ni 1000 Ω

temperature sensor Ni 1000 Ω: -58°F to

302°F

(-50°C to 150°C)

(unchangeable)

∆X2 Calibration offset for X2

(Ni and Pt sensor only) -9°F to 9°F

-5 to 5 K

X2LS X2 is Siemens Ni 1000 Ω

temperature sensor Ni 1000 Ω: -58°F to 302°

(-50°C to 150°C)

(unchangeable)

X1 L Start point of the X1

(for 0 to 10 Vdc only) -100 to 8,000

X1Pt X1 is Platinum Pt 1000 Ω

temperature sensor Pt 1000 Ω: -4°F to 356°F

(-20°C to 180°C)

(unchangeable)

X2 L Start point of the X2

(for 0 to 10 Vdc only) -100 to 8,000

X2Pt X2 is Platinum Pt 1000 Ω

temperature sensor Pt 1000 Ω: -4°F to 356°F

(-20°C to 180°C)

(unchangeable)

X1 H Stop point of the X1

(for 0 to 10 Vdc only) -100 to 8,000

X1 0 to 10 X1 is 0 to 10 Vdc input

sensor 0 to 10 Vdc: -100 to 8,000 X2 H Stop point of the X2

(for 0 to 10 Vdc only) -100 to 8,000

X2 0 to 10 X2 is 0 to10 Vdc input sensor 0 to 10 Vdc: -100 to 8,000 X2VR Variable Resistor 0 Ωto 1000 Ω

PS 1 – Application Number 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 analog input

Act Active sensor input

RWD62U Controller Installation and Commissioning Guide Document Number 129-410

October 1, 2004

Siemens Building Technologies, Inc. Page 5 of 10

Table 2. PS 3 Auxiliary Function Parameter Set-up.

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 Value to start Limiter cooling x x

MIN Value to start Limiter heating x x

XP-h P-band in Limiter heating x x

XP-c P-band in Limiter cooling x x

TN-h Integrating time heating x x x

TN-c Integrating time cooling 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 First heating/reverse acting P-band in Cascade x

XPc1 First cooling/direct acting P-band in Cascade x

WIN As X2 < WIN, Y1 is reverse acting x

SUM As X2 > SUM, Y1 is direct acting x

T Time elapsed to allow next winter/summer

changeover (Y1 only)

x x

There are no PS3 auxiliary function parameters for applications #x8 and #x9.

Operating Modes The controller has three operating buttons for the following functions:

SEL ●This button is used to enter or save the value adjustment.

▲These operating buttons are used for viewing and adjusting

▼parameters

Time-out For setpoint adjustment in Normal mode, the controller will automatically exit the setting

after 20 seconds. However, there is no time limit for setpoint adjustment in Service (PS)

mode. The controller remains on the PS mode until the user completes the entire

process.

NOTES: Only those parameters that apply to a particular program appear on the

display or in the sequence in commissioning. For example, if the second

analog input is not used, X2 values and selections will not appear.

A software tool for controller application selection and parameter adjustment

is available (Tool Kit CD, P/N 125-3481). It is a user-friendly Windows®95 (or

later)-based software tool which provides you with a printout of the controller

settings. Parameters can be hidden from display by using the software tool.

Document Number 129-410 RWD62U Controller Installation and Commissioning Guide

October 1, 2004

Page 6 of 10 Siemens Building Technologies, Inc

Main Display

5.0 72°F

The main display shows:

•Y1 and Y2 outputs in Volts dc. (0 to 10V will be display as 0, 1, 2 through 10)

•Whether day or night setpoint is selected (= day, e= night).

•X1 value in °C, °F, % or no unit.

Other displays are available by pressing the +▲button. The various displays are listed

below in sequence from the main display.

On entering any of the setpoint displays, the setpoint on display can be adjusted by

pushing the SEL ●button. Increase value by pressing the + ▲button, or decrease the

value by pressing the −▼button. When the required value is reached, press the SEL

●button to save the new value.

Alternative displays return to the main display after 20 seconds.

Table 3. Main Display.

Action Typical Display Selected Display Comments

Push --- Y1 Y2 X1 

Default page includes:

X1 reading,

Y output status

Day/night setpoint selection status

Push +▲button Y1 SP – h 

66.0°F (19.0°C)

Setpoint page, setting value displayed and is

adjustable:

First stage heating or cooling, direct or reverse day

acting setpoint, depending on application.

Push +▲button Y2 SP – c 

70.0°F (21.0°C)

Setpoint page, setting value displayed and is

adjustable:

Second stage heating or cooling, direct or reverse day

acting setpoint, depending on application.

Push +▲button Y1 SP – h e

59.0°F (15.0°C)

Setpoint page, setting value displayed and is

adjustable:

First stage heating or cooling, direct or reverse night

acting setpoint, depending on application

Push +▲button Y2 SP – c e

77.0°F (25.0°C)

Setpoint page, setting value displayed and is

adjustable:

Second stage heating or cooling, direct or reverse night

acting setpoint, depending on application

Push +▲button X1

68.0°F (20.0°C) X1 – Main sensor reading

Push +▲button X2

50.0°F (10.0°C) X2 – Auxiliary sensor reading.

Push +▲button Y1 5.0 Output page: output value displayed

First stage Y1 value in Vdc

Push +▲button Y2 0.0 Output page: output value displayed

Second stage Y2 value in Vdc

Push +▲button

#33

Application number and control sequence diagram

After 20 seconds any

page will return to the

main default page if

left unattended.

Y1 Y2 X1 Back to main default page

RWD62U Controller Installation and Commissioning Guide Document Number 129-410

October 1, 2004

Siemens Building Technologies, Inc. Page 7 of 10

Service (PS) Mode

Screen Sequence •Press both buttons +▲and −▼and hold for five seconds to enter the Service

Mode.

•Press +▲for viewing the next page or to increase value.

•Press −▼for viewing the previous page 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 the new

controller. See Figure 1.

•PS2 to PS4 parameters may need to be adjusted for service/commissioning

purposes.

Commissioning

Flowchart

RWD0428R1

- 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

C, %

or no unit

- Sensor type

- Sensing range

- Calibration offset

Define unit, X1 & X2

- Application no. selection

Application no.

- Proportion band

- Integral time

- Output for minimum end

- Output for maximum end

- Day/night setpoint

- Winter/summer setpoint

Main loop

X1Y1 Y2

(wait 2 seconds)

New controller application

and setpoint sequence

* New controller

Normal programming

74°F00

Figure 1. Commissioning Flowchart.

Document Number 129-410 RWD62U Controller Installation and Commissioning Guide

October 1, 2004

Page 8 of 10 Siemens Building Technologies, Inc

Wiring Terminals

G0 Y2

D1 M X1 M X2 M

Y1 M

Tool

TH0800R1

NOTE: Screwed terminals for cables with min

2 × 16 or 1 × 14 AWG.

Figure 2. Wiring Terminals.

G, G0 24 Vac supply

(SELV 24 Vac power supply)

M Ground (G0) for signal inputs

and universal inputs

X1 Signal input (main input:

Siemens Ni 1000, Pt 1,000

and 0 to 10 Vdc)

X2 Signal input (Aux. Input:

Siemens Ni 1000, Pt 1000, 0

to 10 Vdc and remote setting

unit)

Y1, Y2 Analog outputs (0 to 10 Vdc)

D1 Digital input

Tool Communication port with PC

(9-pin plug)

Wiring Diagram

Y..

X1 X2MM

RWD0061R1

24 Vac

TOOL

PC Y2

M Y2

Figure 3. Wiring Diagram.

G, G0 Power

N1 RWD62U controller

X1 Room temperature

sensor

(Termination G appears when

X2 is

an active sensor)

X2 Auxiliary sensor or digital input

S1 Time clock or switch

Y1 Heating control valve with

0 to 10 Vdc input

Y2 Cooling control valve with

0 to 10 Vdc input

PC Personal computer

(optional set-up only)

CAUTION:

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 grounded as well. This will

change the SELV to a PELV.

RWD62U Controller Installation and Commissioning Guide Document Number 129-410

October 1, 2004

Siemens Building Technologies, Inc. Page 9 of 10

Installation

Mounting Notes

TH0741R1

AB C D

Figure 4. Mounting Options.

The RWD62U can be mounted as follows:

Observe all local installation and mounting regulations.

A On a DIN rail (EN 50 022-35 x 7.5) at least 4.75 inches (120 mm) long for

RWD62U.

B Wall-mounted with two screws. (Minimum length of the screws should be

2.75 inches (70 mm) (φ3.2 mm).

C Front-mounted using standard elements:

•One DIN rail 5.90 inches (150 mm) long for RWD62U

•Two hexagonal placeholders 1.96 inches (50 mm)

•Washers

•Screws

NOTE: (Ensure all terminations are tightened before final mounting to front

panel.)

D Inside the ARG62.21.

WARNING:

There must be a minimum of 0.31 inches (8 mm) distance from

terminations to panel/enclosures to avoid electric shock.

Electrical Installation

Notes •Standard cables can be used for the controller. However, when mounting in an

environment greatly exposed to EMI, use only shielded cables.

•The RWD62U is designed for 24 Vac operating voltage.

•Use safety insulating transformers with double insulation as per EN 60742; they

must be designed for 100% Duty.

•When using several transformers in one system, the connection terminals G0

must be galvanically connected.

•Supplying voltages above 24 Vac to low voltage connections may damage or

destroy the controller or any other connected devices. Additionally, connections

to voltages exceeding 24 Vac endanger personal safety.

Document Number 129-410 RWD62U Controller Installation and Commissioning Guide

October 1, 2004

Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and

models as design improvements are introduced. . Windows is a registered trademark of Microsoft Corporation. Other product or company

Siemens Building Technologies, Inc.

1000 Deerfield Parkway

Buffalo Grove, IL 60089-4513

U.S.A.

Your feedback is important to us. If you have

comments about this document, please send

them to technical.editor@siemens.com

Document No. 129-410

Country of Origin: US

Page 10 of 10

Dimensions

TH0802R1

5.12

(130)

3.50

(89)

4.37

(111)

2.22

(56.5)1.89

(47.9)1.22

(31)

0.16

(4)

0.16 (4)

4.17

(106) 1.80

(45.7)

Figure 5. RWD62U Dimensions in Inches (Millimeters).

TH0745R1

5.91 (150)

7.87 (200)

2.41 (61.2)

Figure 6. ARG62.21 Enclosure Dimensions.

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