Siemens GEB 1 Series Installation guide

OpenAir
Actuators without spring return GEB…1
Technical basics
CM2Z4621en
2017-05-26
Building Technologies

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Building Technologies Table of contents 2017-05-26
Table of contents
1Introduction ................................................................................................... 5
1.1 Revision history............................................................................................. 5
1.2 About this document ..................................................................................... 5
1.3 Document contents....................................................................................... 5
2Non spring-return actuators .......................................................................... 6
2.1 Application .................................................................................................... 6
2.2 Type summary .............................................................................................. 7
2.3 Description of functions................................................................................. 8
2.3.1 Description of functions for GEB...1.............................................................. 8
2.3.2 Supplementary information on the description of functions for GEB16..1 .... 9
2.4 Controllers................................................................................................... 10
2.5 Structure and design................................................................................... 10
2.6 Setting and operator elements.................................................................... 11
3Technical design......................................................................................... 12
3.1 Motor technology ........................................................................................ 12
3.2 Rotary range and mechanical limitation...................................................... 12
3.3 Auxiliary switches and positioning signals .................................................. 13
3.4 Adjustable characteristic function ............................................................... 14
3.5 Neutral zone................................................................................................ 15
4Engineering notes....................................................................................... 16
4.1 Safety notes ................................................................................................ 16
4.2 Device-specific regulations ......................................................................... 17
4.3 Notes on EMC optimization ........................................................................ 18
4.4 Determining the actuator............................................................................. 18
5Mounting notes ........................................................................................... 20
6Wiring notes ................................................................................................ 21
6.1 Permissible line length and cross-sectional areas...................................... 21
6.2 Actuator wiring (three-position) ................................................................... 23
6.3 Actuator wiring (modulating) ....................................................................... 24
6.4 Actuator wiring (Modbus RTU).................................................................... 25
7Commissioning notes.................................................................................. 25
7.1 General checks ........................................................................................... 25
7.2 Electrical function check ............................................................................. 26
7.3 Modbus ....................................................................................................... 28

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7.3.1 HMI – Human-machine interface ................................................................28
7.3.2 Push button addressing ..............................................................................29
7.3.3 Commissioning............................................................................................30
7.3.4 Modbus registers.........................................................................................31
7.3.5 Parameter and function description ............................................................33
8Technical data .............................................................................................34
9Diagrams.....................................................................................................36
9.1 Internal diagrams ........................................................................................36
9.2 Cable labeling .............................................................................................37
9.3 Connection diagrams (three-position control) .............................................38
9.4 Connection diagrams (modulating) .............................................................39
9.4.1 Typical application.......................................................................................39
9.4.2 Special switchings for modulating control ...................................................39
9.5 Connection diagrams (networked) ..............................................................40
9.5.1 Typical application.......................................................................................40
10 Environmental compatibility and disposal ...................................................40
11 Appendix .....................................................................................................41
11.1 Dimensions .................................................................................................41
11.2 Referenced documents ...............................................................................43

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1 Introduction
1.1 Revision history
Changes Date Chapter Pages
Accessories (Ext. auxiliary switches ASC77..) 10.01.2005 2.2 6
Referenced documents (ASC77..) 11.2 33
Electrical parallel connection of actuators
07.02.2005
4.2 16
Determining the actuator type 4.4 18
Permissible line length and cross-sectional areas 6.1 20/21
Environmental compatibility and disposal 10 31
Referenced documents 11.2 32/33
EU and RCM Conformity 26.02.2016 827
European Directive 2012/19/EU 10 31
Added type GEB161.1E/MO 26.05.2017 whole document
1.2 About this document
This document targets engineering, product management, and commissioning staff in
the market areas.
This document provides basic knowledge. In addition to background information, it
contains general technical fundamentals on the GEB…1 actuator series.
It offers all information on engineering, correct mounting and wiring, commissioning,
and service.
Chapter 11.2 Referenced documents contains a list of documents on rotary and linear
actuators with accessories.
1.3 Document contents
This document contains basic technical information on type series GEB...1 for:
∂Three-position control
∂Modulating control, and
∂Modbus communication
The following topics are discussed:
∂Type overview and description of the available options
∂Applications and functions
∂Actuator design including setting and operator elements
∂Adjustable auxiliary switches and characteristic function
∂Notes on engineering and safety-specific guidelines and regulations
∂Notes on mounting, wiring, and commissioning
∂Technical data
∂Diagrams
∂Environmental compatibility and disposal
Main audience
Purpose
Referenced documents

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2 Non spring-return actuators
This chapter provides information on application, functions, and device combinations.
Furthermore, it contains a type overview and explains the actuator design including
setting and operator elements for this family of actuators.
2.1 Application
The actuators are used in ventilating and air conditioning plants to operate air dampers
and air throttles:
∂For damper areas up to 3 m2, friction-dependent.
∂Suitable for modulating controllers (DC 0...10 V) or three-position controllers
(e.g. for outside air dampers).
∂For dampers having two actuators on the same damper shaft (tandem-mounted
actuators or Powerpack).
Introduction

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2.2 Type summary
The following table shows the options for the actuator types.
GEB.... 131.1E 132.1E 136.1E 331.1E 332.1E 336.1E 161.1E 163.1E 164.1E 166.1E 161.1E/MO
Three-position control Modulating control Modbus RTU
Operating voltage
AC 24 V X X X X X X X X
Operating voltage
AC 230 V X X X
Positioning signal input Y
DC 0...10 V X X X X
DC 2...10 V X X
DC 0...35 V
with characteristic
function
X X
Modbus RTU X
Position indicator
U = DC 0...10 V X X X X
Modbus RTU X
Feedback potentiometer
1kςX X
Self-adaptation of rotary
angle range X X X X X
Auxiliary switches (two) X X X X
Rotary direction switch X X X X
Powerpack (two actuators,
tandem-mounted) X X X X X X
For functional enhancements of the actuators, the following accessories are available:
External auxiliary switches (1 switch) ASC77.1
External auxiliary switches (2 switches) ASC77.2
Universal lever ASK71.9
Rotary/linear set for duct and wall mounting ASK71.11
Rotary/linear set with lever ASK71.13
Rotary/linear set with lever and mounting plate ASK71.14
Weather protection cover ASK75.3
Mounting bracket for tandem-mounted actuators or Powerpack ASK73.3
Data sheet for accessories and spare parts N4697
Accessories, spare parts
Accessories

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2.3 Description of functions
2.3.1 Description of functions for GEB...1
The functions are listed in a table and are assigned to the respective control types.
Type GEB13..1 / GEB33..1 GEB16..1 GEB161.1E/MO
Control type Three-position control Modulating control. Modbus RTU
Positioning signal with adjustable
characteristic function -
Y = DC 0...35 V with
offset Uo = 0...5 V and
span ΧU = 2...30 V
-
Rotary movement,
rotary direction
Clockwise or counter-clockwise direction depends:
On the type of control.
With no power applied, the actuator
remains in the respective position.
∂On the direction of the DIL
rotary direction switch.
∂On the positioning signal.
The actuator stays in the
position reached:
∂If the positioning signal is
maintained at a constant
value.
∂If the operating voltage is
interrupted.
On the setting of the
respective parameter
Position indication:
Mechanical Rotary angle position indication by using a position indicator.
Position indication:
Electrical
Connecting the feedback
potentiometer to an external voltage
source results in voltage supply
proportional to the rotary angle.
∂Position indicator: Output
voltage U = DC 0...10 V is
generated proportional to
the rotary angle.
∂Only for GEB16..1:
The direction of action
(inverted or not inverted)
of output voltage U
depends on the rotary
direction of the DIL switch.
By Modbus register value
Self-adaptation of rotary angle
range -
∂The actuator automatically
determines the
mechanical end of range
for the rotational angle.
∂The characteristic function
(Uo, ΧU) is mapped to the
determined rotary angle
range.
When self-adaption is active,
the actuator automatically
detects mechanical end of the
rotary angle range.
Auxiliary switch The switching points for auxiliary switches A and B can be set independent of each other in
increments of 5° within 5° to 90°.
Response on damper blocking .- The actuator is equipped with an automatic switch-off
mechanism.
Powerpack (two actuators,
tandem-mounted)
Mounting two actuators of the same
type on the same damper shaft
doubles the torque.
Not permitted.
Manual adjustment The actuator can be manually adjusted by pushing the gear train disengagement button.
Rotary angle limitation The rotary angle for the shaft adapter can be limited mechanically
by inserting the shaft adapter in 5° increments.

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2.3.2 Supplementary information on the description of
functions for GEB16..1
The following information applies to modulating actuators.
Offset Uo and span ΧU can be adjusted using two potentiometers (see 3.4 "Adjustable
characteristic function"). The maximum permissible input voltage (Uo + ΧU) is DC 35 V.
Actuators featuring this function can be used for the following applications:
∂Dampers with a rotary angle limitation, for instance in the 0°...45° range, can be
controlled using the full positioning signal range DC 0...10 V.
∂As a sequencing actuator in control loops that can only apply a DC 0...10 V
positioning signal to control more than one sequence.
∂In control systems with a positioning signal deviating from DC 0...10 V such as
DC 2...10 V or DC 0…35 V.
The actuator automatically determines the mechanical end of range for the rotary angle
on:
∂Activated self-adaptation and switching-on of operating voltage.
∂Switch-on and switch-off for self-adaptation when operating voltage is supplied.
The table shows the different effects of the characteristic function's mapping to the
rotary angle range for "inactive self-adaptation" and "active self-adaptation" (see also
chapter 3.4 "Adjustable characteristic function").
Inactive self-adaptation Active self-adaptation
∂The actuator maps the
characteristic function (Uo, ΧU) to
the positioning range Ys = 100 %
for rotary
angle 90°.
∂The actuator calibrates the position
indication with U = DC 0...10 V for
rotary angle 90°.
∂The actuator maps the characteristic
function (Uo, ΧU) to the positioning range
Ys = 100 % for the determined rotary
angle range.
∂The actuator calibrates the position
indication with U = DC 0...10 V for the
determined rotary angle range.
All process values (setpoints and actual values) and all parameters are implemented as
Modbus RTU registers.
The actuator automatically determines the effective rotary angle range when the
respective parameter is set to “on”. In that case the actuator performs a calibration run
at first startup to determine its actual opening range and adjusts the 0..100% feedback
signal to this opening range.
The table shows the different effects of the characteristic function’s mapping to the
rotary angle range for “inactive self-adaptation” and “active self-adaption”:
Inactive self-adaption Active self-adaption
∂The actuator calibrates the position
indication with Actual Position =
0..100% for rotary angle = 90°
∂The actuator calibrates the position
indication with Actual Position = 0..100%
for rotary angle < 90°
Supplement
Characteristic function
(GEB163.1, GEB164.1)
Application
Self-adaptation of the
rotary angle range
(GEB16..1)
Process values and
parameters
GEB161.1E/MO
Self-adaption of the
rotary angle range
GEB161.1E/MO

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2.4 Controllers
The actuators can be connected to all controllers having the following outputs.
All safety-related requirements must be met (see chapter 4 "Engineering notes").
Actuator type Control type Controller output
GEB13..1 Three-position AC 24 V
GEB33..1 Three-position AC 230 V
GEB16..1 Modulating DC 0...10 V / DC 2...10 V /
DC 0...35 V
GEB161.1E/MO Modbus RTU Modbus RTU
2.5 Structure and design
The electronic motor-driven GEB..1 electronic actuators are available for three-position,
modulating and networked control. The maximum torque is 15 Nm. The actuator's
connection cables are prewired.
Robust, light-weight full metal housing from aluminum diecast. The housing guarantees
a long actuator life even under harsh environmental conditions.
Maintenance-free and noise-free gear train with stall and overload protection for the life
of the actuator.
This mounting type allows for fastening the actuator to shafts with various diameters
and in various shapes (square, round) using just one screw.
Insert the shaft adapter from either side into the opening for the shaft adapter.
For short shafts, the shaft adapter is on the duct side.
The shaft adapter coupling and the adapter holding are coupled by means of double-
sided gearing.
When no voltage is supplied, you can manually adjust the actuator or the air damper by
pressing the gear train disengagement button.
A bolted metal strip is used to attach the actuator.
All actuators have pre-wired 0.9 m long connection cables.
The actuators can be delivered as a type-specific variant having the following elements:
For supplementary functions, you can adjust auxiliary switches A and B on the actuator
front.
Both potentiometers for the characteristic functions Uo and ΧU are accessible on the
front.
The DIL switches exist only in modulating actuators and are accessible from the front
(see chapter 2.6 "Setting and operator elements“).
The potentiometer is integrated and can be connected by means of a cable.
Description
Housing
Gear train
Self-centering shaft
adapter
Manual adjustment
Mounting bracket
Electrical connection
Type-specific elements
Auxiliary switch
Potentiometer for offset
and span
DIL switch
(only for GEB16..1)
Feed
back potentiometer to
position indication

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This cover protects the DIL switch against dust and water spray.
The HMI of networked types consists of a push button and an LED to allow certain
interactions with the actuator or to provide visible feedback from the actuator.
2.6 Setting and operator elements
7
6
5
4
3
2
112
11
10
9
8
15
4621Z13
90°
45°
Legend
1 Housing
2 Rotary angle scale
3 DIL switch and cover
4 Potentiometer to adjust the span ΧU
5 Potentiometer to set the offset Uo
6 Mounting bracket
7 Connecting cable for power and
positioning signal
8 Connecting cable for auxiliary switches or
feedback potentiometer
9 Disengagement button for gear train
10 Setting shafts for auxiliary switches A
and B
11 Position indicator
12 Self-centering shaft adapter
13 Locking ring for shaft adapter
14 Adapter for position indicator
15 Adjustment tool for auxiliary switches
(10), potentiometer (4, 5)
For long damper shafts For short damper shafts
4621Z30
90°
45°
13 12
90°
45°
4621Z33
11
90°
45°
4621Z32
13
12
14
90°
45°
4621Z33
11
Meaning DIL switch label Meaning Function
Counter-clockwise
arrow Clockwise arrow Rotary angle direction
Active 0 Off Self-adaptation
DC 2...10 V 2... 0... DC 0...10 V Positioning signal
GEB161.1, GEB166.1
DC 0...35 V (Comfort) C 0 DC 0...10 V Positioning signal
GEB163.1, GEB164.1
Factory setting for DIL switch.
Cover for DIL switch
(only for GEB16..1)
Push button and LED
at external Interface
Actuator
Arrangement of shaft
adapter
DIL switch
(Legend pos. 3)
GEB16..1
Note

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3 Technical design
This chapter discusses the following topics:
∂Motor technology.
∂Adjustable auxiliary switches.
∂Adjustable characteristic function (positioning signal, DC 0...35 V).
∂Control characteristics by including the neutral zone
3.1 Motor technology
A synchronous motor enables accurate speed control. The magnetic coupling serves
as a torque supervision to protect both actuator and dampers.
3.2 Rotary range and mechanical limitation
The illustration below shows the relationship between the inner and outer mechanical
limitation of the rotary range.
Gear train rotary range
Inner mechanical limits
5°0° 20° 40° 60° 80°
5°
95°
90°2,5°0°
0° 95°
97.5°
-2,5°
40° 95°
Χ =62.5°
x 5°= 7 5°· ·
x >1
x = 0
Χ= 95°-x 5° +2.5°
Χ= 95°
·
0°
4621D03
1
2
Outer mechanical limits
Adapter setting range
Actuator rotary range
(without rotary angle limitation)
•Gear train presetting
(factory setting)
Pointer
Rotary angle scale
Rotary angle limitation
Adapter setting
Example: x = 7
x = number of steps (5°)
‚incl. gear train presetting
Introduction
Motor technology
Mechanical functions

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3.3 Auxiliary switches and positioning signals
The illustration below shows the relationship between the rotary angle, the adjustable
switching points for auxiliary switches A and B, and the positioning signal.
Gear train rotary range
Inner mechanical limits
A B
85°
0°
0°
95°
10V
95°
5°
0° 95°
⇑ 1 x click
S1 S1 S4 S4
S2 S3 S2 S3 S5 S6 S5 S6
(Q12) (Q14) (Q14) (Q12) (Q22) (Q24) (Q22) (Q24)
(Q11) (Q11) (Q21) (Q21)
5°
4621D04
1
2
3
4
5
6
50
40
30
20
10
50
60
70
80
90
A
B
4614Z03en
Aux Switch
Adjustment
[ ° ]
Auxiliary switches
Factory setting:
A = 5°; B = 85°
Setting range 5°…90°
Switching states
Rotary movement as a function
of the positioning signal
Modulating signal, DC 0…10 V
AC 24 V
•no movement (G,G0,Y=U)
‚opening (G,G0,Y>U)
ƒclosing (G,G0,Y<U or G,G0)
Three-position signal,
AC 24 V; AC 230 V
„no movement (no voltage)
…opening (G,Y1 or N,Y1)
†closing (G,Y2 or N,Y2)
The setting shafts for the auxiliary switches turn together with the adapter. The scales
thus only refer to the inner mechnical 0° limit.
The adjustment tool is used to set the auxiliary switches; it is part of the delivery (type-
specific).
Electrical functions
Note
Adjustment tool

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3.4 Adjustable characteristic function
A modulating positioning signal DC 0..35 V from a controller controls the actuator. The
rotary angle is proportional to the positioning signal. Using potentiometer "Uo", you can
set the offset for DC 0...5 V, and with potentiometer "ΧU", you can set the span for
DC 2...30 V.
100
0
UO
Ys [%]
4637D04
2 5 10 35
2)
1)
ΧU (max. 30 V)
4)
30 Y [V]
3)
Ys Positioning range
For inactive self-adaptation: 100 % = Rotary angle 95°
For active self-adaptation: 100 % = Determined rotary angle
YPositioning signal
Uo Offset
ΧU Span (for Ys = 100 %)
2
4
01
3
5Uo
30
2
16
10
24
U
UoU
Ys
U
4614Z02
Example Positioning
signal Y
Positioning
range Ys
Settings
Uo ΧU
1) DC 0...2 V 0...100 % DC 0 V DC 2 V
2) DC 5...10 V
DC 5...35 V
0...17 %
0...100 % DC 5 V DC 30 V
3) DC 0...10 V
DC 0...30 V
0...33 %
0...100 % DC 0 V DC 30 V
4)* DC 0...10 V 0...100 % DC 0 V DC 10 V
4)* Characteristic curve for factory setting
∂The Y input is limited to max. DC 35 V.
∂The adjustable span ΧU is max. 30 V.
Define the adjustable span ΧU if the actuator is to open from 0...50 % at a positioning
signal of Y = DC 2…10 V. The offset Uo thus amounts to 2 V. The rotary angle is 90°.
Self-adaptation is inactive.
Calculating the setting value for ΧU:
Ζ
∴
Ζ∴ Ζ∴ Ζ∴
∋ ( ∋ ( V16V2V10
%50
%100
VUoV10
%Ysrangegpositioninspan
%maxYsrangegpositioninmax.
U<,√<,√<Χ
Uo = 2 V, ΧU = 16 V
Actuators
GEB163.1, GEB164.1
Examples as per the
diagram
Note
Example
Formula
Potentiometer settings

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100
0
ΧU (16 V)
Y [V]
YS[%]
4637D02
21810
Umin Umax
50
Uo
Max. positioning range Ysmax = 100 % (95°)
Span Ys = 50 % (47.5°)
Offset Uo = 2 V
Span ΧU = 16 V
Effective span
ΧUw = Umax – Umin
= 10 V - 2 V = 8 V
3.5 Neutral zone
For modulating control actuators, note the control characteristic for the selected switch-
on point of the setpoint. The diagram shows the setting characteristics by including the
neutral zone for range DC 0...10 V.
The diagram shows the setting characteristics by including the neutral zone. The values
for the neutral zone listed in the diagram apply to DC 0...10 V (without characteristic
function).
-E
E
+E
Rotary direction
Hysteresis
H = 70 mV
Neutral zone NZ = 200 mV
Hysteresis
H = 70 mV
Counter- clockwise
Clockwise
90° ⇓0°
0° ⇓90°
4614D03en
The diagram shows the relationship between the differential voltage E = Y – U
(difference between setpoint Y and actual value U) and the rotary direction, including
hysteresis and neutral zone.
For DC 0...35 V (with characteristic function) the following values apply:
Neutral zone NZ = 2 % of span ΧU.
Hysteresis H = 0.7 % of span ΧU.
Characteristic function for
the example
Actuators
GEB16...1 (DC 0...10 V)
Note
Actuators
GEB163.1, 164.1
(DC 0...35 V)

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4 Engineering notes
Carefully study the basics of the control systems used before proceeding to the
sections below, and pay special attention to all safety-related information.
Use these actuators in a system only for applications as described in the basic system
documentation of the control systems used. Additionally, note the actuator-specific
properties and conditions as described in this chapter and in chapter 8 "Technical data"
in this document.
4.1 Safety notes
This chapter explains general and system-specific regulations for mains and operating
voltages. It also contains important information regarding your own safety and that of
your plant.
The warning triangle to the left means that you must observe all respectively listed
regulations and notes.
If ignored, injuries and equipment damages may result.
Observe the following general regulations during engineering and project execution:
∂Electric and high-power regulations of the respective country.
∂Other mandatory country regulations.
∂House installation regulations of the respective country.
∂Regulations by the energy supplier.
∂Diagrams, cable lists, dispositions, specifications, and instructions as per the
customer or the engineering company.
∂Third-party regulations from, e.g., the general contractors or building contractors.
Electrical safety in Landis & Staefa building automation and control systems primarily
depends on extra-low voltage with safe isolation from mains voltage.
Depending on the earthing of extra-low voltage, SELV or PELV applications as per
HD384 "Electrical plants in buildings" result:
Unearthed = Safety Extra-Low Voltage SELV
Grounded = Protection by Extra-Low Voltage PELV
Observe the following for grounding G0:
∂As a rule, earthing as well as non-earthing of G0 is permissible for AC 24 V
operating voltage. However, observe all local regulations and customary
procedures.
∂For functional reasons, earthing may be required or not permissible.
∂As a rule, ground AC 24 V systems if not otherwise indicated by the
manufacturer.
∂To avoid earth loops, connect systems with PELV to the earth at only one end in
the system, normally at the transformer, unless otherwise specified.
Introduction
Intended use
Please observe the
following notes
Safety note
General regulations
Safety
SELV, PELV
Earthing of
G0 (system neutral)
Recommendation on
earthing G0

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The following regulations apply to these operating voltages:
Regulation
Operating voltage
AC 24 V
The operating voltage must comply with the requirements for
SELV or PELV:
∂Permissible deviation of AC 24 V nominal voltage at the
actuators: +/-20 %.
Operating voltage
AC 230 V
Permissible deviation of AC 230 V nominal voltage at the
actuators: +/-10 %.
Specification on
AC 24 V
transformers
∂Safety transformers as per EN 61558, with double isolation,
designed for 100 % runtime to supply SELV or PELV
circuits.
∂Determine the transformer’s power consumption by adding
up the power consumption in VA for all actuators used.
∂The capacity used from the transformer should amount to
at least 50 % of the nominal load for efficiency reasons
(power efficiency).
∂The nominal capacity of the transformer must be at least
25 VA. For smaller transformers, the ratio between voltage
at idle time to voltage at full load is unsatisfactory
(> + 20 %).
Fuse of AC 24 V
operating voltage
Transformers, secondary side:
∂According to the effective load of all connected devices.
∂Line G (system potential) must always be fused.
∂Where required, additional line G0 (system neutral).
Fuse of AC 230 V
mains voltage
Transformers, primary side, as per the applicable installation
regulations of the respective country.
4.2 Device-specific regulations
Safety for the devices is ensured by (among other aspects):
∂Supply of AC 24 V extra-low voltage as per SELV or PELV.
∂Double isolation between AC 230 V mains voltage and SELV/PELV circuits.
∂Three-position actuators GEB13..1 and GEB33..1:
Mount max. two actuators on the same damper shaft. Use the mounting bracket to
also secure the second actuator (see accessories in chapter 2.2).
∂Do not mechanically connect modulating GEB16..1 actuators.
Apply only mains voltage or only safety extra-low voltage to the switching outputs of
auxiliary switches A and B. Mixed operation is not permissible. However, operation
using various phases is permissible.
Include the potentiometer's electric data to indicate the damper position via external
switching.
Up to 10 actuators of the same device type can be electrical parallel wired. Cable
length and cable cross section have to be respected.
See chapter 6 “wiring notes” for more information.
Do not open the actuator.
The device is maintenance-free. Only the manufacturer may conduct any repair work.
Operating voltage
AC 24 V, AC 230 V
Device safety
Mechanical parallel
connection of actuators
Auxiliary switches A, B
Feedback
potentiometer for
position indication
Electrical parallel
connection of actuators
Caution,
maintenance

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4.3 Notes on EMC optimization
Make sure to separate high-interference cables from equipment susceptible to
interference.
∂Cables emitting interference: Motor cables, particularly motors supplied
by variable speed drives, energy cable.
∂Cables susceptible to interference: Control cables, extra-low voltage cables,
interface cables, LAN cables, digital and
analog signal cables.
∂You can run both cable types in the same cable ducting, but in different
compartments.
∂If ducting with three closed sides and a partition is not available, separate the
interference-emitting cables from other cables by a minimum of 150 mm or route in
separate ducting.
∂Cross high-interference cables with equipment susceptible to interference only at
right angles.
∂When, as an exception, signal and interference-emitting supply cables are run in
parallel, the risk of interference is very high. In this case, limit the cable length of
the positioning signal line DC 0...10 V for modulating actuators.
We recommend to use unshielded cables. When selecting unshielded cables, follow
the manufacturer's installation recommendations. In general, unshielded twisted-pair
cables have sufficient EMC characteristics for building services (incl. data applications)
as well as the advantage that no provision is required for coupling to the surrounding
earth.
4.4 Determining the actuator
Selection of the actuator depends on several torque factors. After obtaining the damper
torque rating [Nm/m2] from the manufacturer and determining the damper area,
calculate the total torque required to move the damper as follows:
Total torque [Nm]= Torque rating [Nm/m2]× damper area [m2].
Instead of the torque rating, the total torque can also be determined from the
manufacturer's sizing diagrams.
Running cables in a duct
Cable types
Cable segregation
Unshielded cables
Required actuator
torque

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The following diagram (example EMCO) allows for determining the total torque for this
air damper type.
10
9
8
7
6
5
4
3
2
1
0
200 400 600 800 1000 1200 1400 1600 1800 2000
20 1600
1200
800
15
400
15105
105
2010
10
1335
1665
1995
1005
675
375
2000
1000
0
Friction torque (excl. air influence) [Nm]
Damper width B [mm]
Total torque [Nm]
Damper width B [mm]
4621D01en
Totalpressure[P]
DamperheightH[mm]
Damper for blinds:
Width = 1200 mm
Height = 1005 mm
Total pressure = 2000 Pa
The total torque of about 10 Nm results from the diagram.
Determine your type of actuator from the table below:
If
Ζ
∴
1
SF
Nmtorquetotal then use type
′15 Nm GEB...1 (15 Nm)
′25 Nm GBB...1 (25 Nm) 2
′30 Nm 2 x GEB...1 (2 x 15 Nm) 3
′35 Nm GIB...1 (35 Nm) 4
′70 Nm 2 x GIB...1 (2 x 35 Nm) 5
1Safety Factor SF:
When calculating the number of actuators, remember to include non-definable
variables such as slight misalignment, damper age, etc. as a safety factor. We
recommend a total safety factor of 0.8.
Apply the same factor when calculating the actuator torque by the torque rating.
If the required actuator torque is greater than 15 Nm, you can use the following:
2One actuator of type series GBB...1 or
3Two actuators (tandem-mounted "Powerpack") of type series GEB13..1, Geb33..1, or
4One actuator of type series GIB...1 .
5If the actuator torque is greater than 30 Nm, two actuators of type series GIB...1 can
mechanically be connected and mounted on the damper shaft.
(See data sheets N4625, N4635, and N4699).
Sizing diagram
Example
Determining the ac
tuator
type
Notes

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5 Mounting notes
All information and steps to properly prepare and mount the actuator are available in
the mounting instructions 4 319 0109 0 (M4621) delivered with the actuator. The shaft
adapter as well as all other individual parts are not pre-mounted, as the actuator
components are put together differently depending on damper shaft length. Refer to
"2.5 "Structure and design" in this chapter.
Choose the actuator's mounting position so that you can easily access the cables as
well as the setting dials on the front of the actuator. Refer to 11.1 "Dimensions".
To satisfy the IP54 protection class requirements, the following conditions must be
fulfilled:
∂The actuators are equipped only for vertical mounting (cable entries at bottom) with
air dampers having a horizontal shaft.
∂The actuator mounted on the damper shaft may be mounted by max. +/- 45° to the
vertical line:
∂Use the weather protection cover ASK75.3 for any mounting position.
The mounting bracket (see dimensions) is required for mounting on the damper shaft.
The insertion depth for the bolt into the housing must be sufficient and guaranteed.
The actuator comes with a factory setting of +2.5° which ensures a tight close-off for
the air dampers.
The actuator can be manually adjusted by pushing the gear train disengagement
button.
To ensure a tight close-off function for the dampers and the exact switching position for
switches A and B, adjust the actuator only if the shaft adapter and the position
indicator are mounted in accordance with the mounting instructions.
If necessary, you can limit the rotary angle at increments of 5° for the entire span by
positioning the shaft adapter in the respective position.
Refer to chapter 8 "Technical data" for information on minimum length and diameter of
the damper shafts.
Mount the mounting sets for converting a rotary movement to linear movement (chapter
2.2 Type summary) as per the separate mounting instructions.
When mounting two actuators on the same damper shaft (for GEB13..1 and GEB33..1),
use the ASK73.3 mounting bracket.
Mounting instructions
Mounting position
Device protection
Mounting bracket
Factory setting
Manual adjustment
Mechanical limitation of
rotary angle
Damper shafts
Use of rotary/linear sets
Tandem (Powerpack)
mounting