Siemens OpenAir GDE Series Owner's manual

Technical Instructions

Document No. 155-187P25

EA GDE/GLB-1

November 30, 2005

OpenAir™ Electric Damper Actuators

GDE/GLB Series

Non-spring Return Rotary

24 Vac - Modulating Control 0 to 10 Vdc

Description

The OpenAir direct coupled 24 Vac non-spring return rotary electric actuators are designed

for modulating control of dampers.

Features •Compact, lightweight design

•Self-adapting capability for maximum flexibility in damper positioning

•Manual override

•Offset and slope adjustment models available

•Independently adjustable dual auxiliary switches available

•cUL and UL listed; certified

Application These actuators are used in constant or variable air volume installations for control of HVAC

dampers requiring up to 44 lb-in (5 Nm) or 88 lb-in (10 Nm) of torque.

Product Numbers

Table 1. 24 Vac Operating Voltage.

Torque Cabling Standard

Slope/Offset

Adjustable

Dual Auxiliary

Switches and

Slope/Offset

Adjustable

Dual Auxiliary

Switches

Only

GDE161.1PPlenum GDE161.1P/B

(24 pk) GDE163.1P GDE164.1P GDE166.1P

GDE161.1T — — —

44 lb-in (5 Nm)

Terminal Strip GDE161.1T/B

(24 pk) — — —

88 lb-in (10 Nm) Plenum GLB161.1P GLB163.1P GLB164.1P GLB166.1P

Siemens Building Technologies, Inc.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator

Document Number: 155-187P25 24 Vac – Modulating Control

November 30, 2005

Page 2 Siemens Building Technologies, Inc.

Specifications

Power Supply

Operating voltage (G–G0) 24 Vac +20%, -15%

Frequency 50/60 Hz

Power consumption 3.3 VA

Control signal Input signal (Y-G0)

Voltage-input 0 to 10 Vdc

Input resistance 100K ohms

Feedback signal Position output signal (U–G0)

Voltage-output 0 to 10 Vdc

Maximum output current DC 1 mA

Equipment rating Rating: Class 2 according to UL, CSA

Class III per EN60730

Auxiliary features

Control signal adjustment

Offset (start point) Between 0 to 5 Vdc

Slope (span) Between 2 and 30 Vdc

Dual auxiliary switch contact rating 4A resistive, 2A inductive

Voltage 24 Vac/24 Vdc

DC rating 12 to 30 Vdc

DC2A

Switch Range

Switch A 0 to 90° with 5° intervals

Recommended range usage 0 to 45 °

Factory setting 5°

Switch B 0 to 90° with 5° intervals

Recommended range usage 45° to 90°

Factory setting 85°

Switching hysteresis: 2°

Function Torque

GDE 44 lb-in (5 Nm)

GLB 88 lb-in (10 Nm)

Runtime for 90° opening or closing

GDE 90 sec. at 60 Hz (108 sec. at 50 Hz)

GLB 125 sec. at 60 Hz (150 sec. at 50 Hz)

Nominal angle of rotation 90°

Maximum angular rotation 95°

Mounting Shaft size: Minimum shaft length 3/4-inch (20 mm)

EA1010R1

9/16 inch

15 mm

3/8 to 5/8 inch

8 -16 mm

1/4 to 1/2 inch

6 - 12.7 mm

Figure 1. Acceptable Shaft Sizes.

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions

24 Vac – Modulating Control Document Number: 155-187P25

November 30, 2005

Siemens Building Technologies, Inc. Page 3

Specifications, continued

Housing

Enclosure: NEMA Type 2

IP54 according to EN60529

Material: Durable plastic

Gear lubrication: Silicone-free

Ambient conditions Ambient temperature

Operation: -25°F to 130°F (-32°C to 55°C)

Storage and transport: -40°F to 158°F (-40°C to 70°C)

Ambient humidity (non-condensing): 95% rh

Agency certification UL listed to UL873

cUL certified to Canadian

Standard C22.2 No. 24-93

conformity In accordance with the directive set forth by the European Union for

Electromagnetic Compatibility (EMC): 89/336/EEC

Emissions standards: EN 50081-1

Immunity standards: EN 50082-2

Miscellaneous Pre-cabled connection: 18 AWG

Cable length: 3 feet (0.9m)

Life cycle: Designed for over 60,000 full

strokes and a minimum of 1.5

million repositions at rated torque

and temperature

Dimensions: See

Figure 22

Weight: 1.06 lb (0.48 kg)

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator

Document Number: 155-187P25 24 Vac – Modulating Control

November 30, 2005

Page 4 Siemens Building Technologies, Inc.

Accessories NOTE: The auxiliary switches cannot be added in the field. Order the product number that

includes this option. See Table 1.

EA0647R1

Figure 2. Conduit adapter.

ASK76.1U Provides connection

between the actuator and conduit.

EA0695R1

Figure 3. Rotary to linear.

ASK71.5 Allows a direct-coupled

actuator to provide an auxiliary linear

drive.

Ea0696R1

Figure 4. Rotary to linear with bracket.

ASK71.6 Allows economical mounting

of an OpenAir actuator to a variety of

surfaces.

Should be used in applications where

the actuator can be rigid-surface

mounted and a linear stroke output is

needed.

EA0496R1

Figure 5. Tandem Mount Bracket.

ASK73.1 Bracket provides extended

anti-rotation pin allowing two OpenAir

actuators to directly drive a single

damper shaft. For use with two- and

three-position actuators.

EA0807R1

Figure 6. Shaft insert.

ASK78.3U Shaft insert for use with 3/8-

inch (8 to 10 mm) diameter shafts.

(10/pk). Included in box with GDE/GLB

series.

NOTE: Factory-installed 1/2-inch

guide must be removed prior

to installation.

EA1060R1

Figure 7. 1/2-inch Shaft Guide.

985-101P25:

Shaft guide, 1/2-inch (25/pk). Factory

installed with GDE/GLB Series.

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions

24 Vac – Modulating Control Document Number: 155-187P25

November 30, 2005

Siemens Building Technologies, Inc. Page 5

Actuator

Components

5678

80 70 60

2010

Aux Switch

Adjustment

A B

self adapt

EA0641R3

12,13

Figure 8. Parts of the Actuator.

Legend

1. Base plate

2. Positioning scale for angle of

rotation

3. Slope adjustment

4. Offset (start point) adjustment

5. DIP switches

6. Cover for DIP switches

7. Connection cables

8. Connection cables

9. Manual override

10. Coupling bushing

11. Factory installed 1/2-inch guide

12. Auxiliary switch A

13. Auxiliary switch B

14. Position indicator

15. Adjustment lever with locking screw

(4 mm hex)

16. Set screw for mechanical range

stop (4 mm hex)

17. Mounting bracket

GDE161.1T

EA1093R1

Supply 24 Vac

0 to 10 Vdc Input

COM

Figure 9. Special Features of Terminal Strip Model.

GDE161.1T

This model uses a terminal strip for

connection purposes rather than cable

connections (7,8).

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator

Document Number: 155-187P25 24 Vac – Modulating Control

November 30, 2005

Page 6 Siemens Building Technologies, Inc.

Operation A continuous 0 to 10 Vdc signal from a controller to wire 8 (Y) operates the damper

actuator. The angle of rotation is proportional to the control signal. A 0 to 10 Vdc

position feedback output signal is available between wire 9 (U) and wire 2 (G0) to

monitor the position of the damper motor.

In the event of a power failure, the actuator holds its position. In the event that only

the control signal is lost, the actuator returns to the "0" position.

Life expectancy An improperly tuned loop will cause excessive repositioning that will shorten the life

of the actuator.

Control signal

adjustment GDE/GLB163.1P and GDE/GLB164.1P: For sequencing and the electronic

limitation of the angle of rotation.

Use the Uo potentiometer to set the offset (start point) between 0 to 5 Vdc.

Use the ΔU potentiometer to set the slope (span) between 2 to 30 Vdc.

NOTE: The Y input is limited to a maximum of 10 Vdc. If the sum of the offset and

slope setting is greater than 10V, the angle of rotation is reduced providing

the feature of electronic limitation of the angle of rotation.

100

Ys [%]

EA0632R1

2 5 10 35

U (max. 30 V)

Y [V]

Figure 10.

Ys Actuator position (100% = angle of rotation

90°*)

Y Control input signal

Uo Offset (start point)

ΔU Slope

ΔUw Active voltage range (Ys changes)

* When the mechanical limitation of the angle of

rotation and self-adapt function are ON, 100% does

not equal 90°.

EA0633R2

USLOPE,

OFFSET,

Setting for

10V slope

0 Vdc offset

Figure 11.

Table 2.

Examples in Figure 3 Uo

Offset

Vdc

ΔU

Slope

Vdc

Active Voltage

Range

Vdc

Actuator

Position

1. Minimum slope 0 2 0 to 2 0 to 100%

2. Limitation of rotation 5 30 5 to 10 0 to 16.7%

3. Limitation of rotation 0 30 0 to 10 0 to 33.3%

4. Setting shown in Figure 4 0 10 0 to 10 0 to 100%

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions

24 Vac – Modulating Control Document Number: 155-187P25

November 30, 2005

Siemens Building Technologies, Inc. Page 7

Operation,

continued

Control signal

adjustment example:

Determine the setting needed to electronically limit the angle of rotation between 0 to 50%

(0 to 45°) using a 2 to 10 Vdc input.

Calculating the value of ΔU:

VdcVdcVdcVdcUoVdc

[%]

U16)210(

%50 %100

])[][10(

[%]Ysrotationof

angleworking

100 =−×=−×=Δ

Settings: Uo = 2 Vdc;

ΔU = 16 Vdc

Electronic limitation

angle of rotation Ys= 50% (45°)

Slope ΔU = 16V

Active voltage range ΔUw = 2 to 10 Vdc

100

Y [V]

[%]

EA0634R1

21810

Uw (8 V)

U (16 V)

Figure 12. Example.

Auxiliary switches GDE/GLB164.1P and GDE/GLB166.1P

Figure 13 shows the adjustable switching values for the auxiliary switches A and B.

Actuator Scale:

clockwise

Adjustment range for

Switches A and B

Setting interval: 5°

Switching hysteresis: 2°

Actuator Scale:

counterclockwise

-2,5 0 10 20 30 70 80 90 92,5

0 10 20 30 70 80

EA0640R1

92,5 90 80 70 60 20 10 -2,5

Figure 13. Adjustable Switching Values for

the Dual Auxiliary Switches.

80 70 60

2010

AUX SWITCH

ADJUSTMENT

EA0636R2

NOTE: The auxiliary switch setting shafts rotate with the actuator. The scale is valid only

when the actuator is in the “0” position on clockwise motion.

Use the long arm of the X to point to the position of switch A. Use the narrower tab on the

red ring to point to the position of switch B.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator

Document Number: 155-187P25 24 Vac – Modulating Control

November 30, 2005

Page 8 Siemens Building Technologies, Inc.

Dual in-line package

(DIP) switches Raise the protective cover from left to right to locate the DIP switches. See Figure 2 for

the location of the cover.

The factory setting is 0 (OFF).

When mechanical angle of rotation is limited, the self-adapt switch

may be turned ON so that the limited range will become the

new 0 to 100% for the actuator logic. In this case, 0 to 100% is not

equal to 90°

CAUTION:

When turning the self-adaptive feature on or after a

software reset with the feature on, the actuator will

enter a five-minute calibration cycle as the actuator

adjusts to the rotation limits of the system. A software

reset happens after power on or may be caused by

electrostatic discharge (ESD) at levels of 2kV and

above.

self adapt

EA0637R1

Figure 14.

Self-adapt

Switch.

The position output signal U is not influenced by the self-adapt

function. The 0 to 10V feedback signal U is always proportional to 0

to 90° (or 90 to 0°)

self adapt

EA0638R1

Figure 15.

Direction of

Rotation Switch.

The factory setting is clockwise.

The direction of rotation switch should match the damper rotation

movement.

self adapt

EA0639R1

Figure 16.

Output Signal

Switch.

The factory setting is direct acting.

As the clockwise angle of rotation increases, the output voltage

increases.

If the direction of rotation is counterclockwise, the output signal

switch should be set at reverse acting to match the direction of the

rotation switch.

NOTE:Feedback not available on terminal strip models.

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions

24 Vac – Modulating Control Document Number: 155-187P25

November 30, 2005

Siemens Building Technologies, Inc. Page 9

Sizing The type of actuator required depends on several factors.

1. Obtain damper torque ratings (ft-lb/ft2or Nm/m2) from the damper

manufacturer.

2. Determine the area of the damper.

3. Calculate the total torque required to move the damper:

Total Torque = SF eaDamper AringTorque Rat 1

1Safety Factor: When determining the torque of an actuator required, a

safety factor should be included for unaccountable variables such as slight

misalignments, aging of the damper, etc. A suggested safety factor is 0.80

(or 80% of the rated torque).

4. Select the actuator type from Table 3.

Table 3.

Total Torque Actuator

<44 lb-in (5 Nm) GDE16x

<88 lb-in (10 Nm) GLB16x

<132 lb-in (15 Nm) GEB16x

<177 lb-in (20 Nm) GBB16x

<310 lb-in (35 Nm) GIB16x

>310 lb-in >620 lb-in

(35 Nm – 70 Nm) Master/Slave actuators

(See Technical Instructions 155-542P2)

Use tandem mounting bracket ASK73.2U

with any combination of GIB16x actuators.

Mounting and

Installation

•Place the actuator on the damper shaft so that the front of the actuator is

accessible. The label is on the front side. A mounting bracket is included with the

actuator.

•The minimum damper drive shaft length is 3/4-inch (20 mm).

•Observe the service envelope around the actuator as shown in Figure 22.

•Detailed mounting instructions are included with each actuator.

EA1002R1

1/2 Ø inch

Factory-Installed

Guide

3/8 Ø inch

Use the shaft insert supplied for any

3/8-inch (8 to 10mm) diameter shaft

5/8 Ø inch

Figure 17. Damper Shaft Sizes.

NOTE: For all damper shafts with the exception of the 1/2-inch round shaft: Remove 1/2 Ø inch guide

before installation.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator

Document Number: 155-187P25 24 Vac – Modulating Control

November 30, 2005

Page 10 Siemens Building Technologies, Inc.

Manual override To move the damper blades and lock the position with no

power present:

1. Slide the red manual override knob toward the back of

the actuator.

2. Make adjustments to the damper position.

3. Slide the red manual override knob toward the front of

the actuator.

Once power is restored, the actuator returns to automated

control.

PL0013R2

MANUAL

ADJUSTMENT

LEVER

AUTO

Figure 18.

Manual Override.

Mechanical range

adjustment To mechanically limit the range of the damper blade.

1. Loosen the stop set screw.

2. Move the screw along the track to

the desired position, and fasten it

in place.

EA0535R2

4 mm

45¡

90¡

<90¡

EA0536R2

Figure 19. Moving the Mechanical Range Stop.

To use the entire 0 to 10V input signal to control the mechanically limited range, see

Figure 7 for setting self-adaptive features.

Example: Stop set screw at 70°

Self-adapt switch ON

Input signal Y = 5 Vdc

The damper will be at 35° (50% of the adjusted range.)

NOTE: On versions with the slope and offset features, this example assumes

Offset Uo = 0 Vdc

Slope ΔU= 10 Vdc

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