Ebmpapst CN1102 Manual

Operating and Maintenance Instructions
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ebm-papst UK Ltd Chelmsford Business Park Chelmsford Essex CM2 5EZ
Telephone: [phone] Fax: [phone]
e-mail [e-mail]
19/07/2022 09:04:36
Table of Contents
1.0 Safety Notice .............................................................................................................................................. 2
2.0 Operating & Commissioning instructions .................................................................................................... 2
3.0 Introduction ................................................................................................................................................. 2
4.0 Specification ............................................................................................................................................... 3
5.0 Installation .................................................................................................................................................. 3
6.0 Mechanical Outline & Connection Detail .................................................................................................... 3
7.0 Connections ............................................................................................................................................... 5
8.0 Functions .................................................................................................................................................... 6
9.0 Transport and Storage ............................................................................................................................... 6
10.0 Maintenance and Servicing ........................................................................................................................ 6
11.0 CE Front Page ............................................................................................................................................ 7
List of Figures
Figure 1 - Dimensions of the unit ............................................................................................................................. 3
Figure 2 - Mains and control connections ................................................................................................................ 4
Figure 3 - Wiring diagram below 1 A total load ........................................................................................................ 4
Figure 4 - Wiring diagram above 1 A total load ....................................................................................................... 5
Figure 5 - Graphs of the relationship of pot. setting to control voltage o/p .............................................................. 6
List of Tables
Table 1 - Specification ............................................................................................................................................. 3
Table 2 - Connections ............................................................................................................................................. 5
Part No
CN1102
Description
3
-
way Switched Live Speed Selector
Issue
Date
Bug no
Comments
2
17 Aug 2018
N/A
Update following CE review
3
14 Sent 2018
N/A
Add CE cert front sheet, correct document number
4
03 Nov 2020
N/A
Photograph
and example circuits
updated
5
19 Jul 2022
N/A
Updated connection diagrams

Operating and Maintenance Instructions
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ebm-papst UK Ltd Chelmsford Business Park Chelmsford Essex CM2 5EZ
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To assure proper usage, we ask you to read these operating instructions carefully before installation
and commissioning of the control device.
1.0 Safety Notice
CAUTION – Safety
 The 3-speed switched live controller is only suitable for use on mains low voltage supplies
(115/230V, 1~, 50/60Hz AC)
 Electrical installations should only be carried out by qualified personnel
 Live parts are accessible
 This device must be installed in an enclosure that prevents contact to live parts
CAUTION – Electro-Static Discharge
Many modern electronic components are susceptible to damage from Electro-Static Discharge (Static
Electricity). During commissioning avoid unnecessary contact with electronic components on PCB’s. PCB’s
which are sensitive to static discharges should be stored and transported in anti-static packaging until they are
required to be used.
Warning – Do not operate in an explosive atmosphere
Warning – The fans may start during connection. If there is a residual risk of contact with fan,
s
ecure
the
fan safely
and
ensure
accidental contact
is avoided
before applying power
2.0 Operating & Commissioning instructions
To download these full operating and maintenance instructions www.ebmpapst.co.uk/instructions
3.0 Introduction
The unit is a built-in appliance intended to be installed in a cabinet or enclosure. The 3-speed switched live EC fan
controller is designed for use with ebm-papst electronically commutated fans with a three-wire control interface
(+10V DC power supply output, a 0-10V DC analogue speed control input, 0V ground reference). UK Patent GB
2431303 refers.
Interfaces with 4 wires (Tacho or alarm output) can also be connected however there is no connection point or
capability to monitor the 4th wire included on the controller.
There are four live connections and two neutrals;
 One Live and one Neutral can be used to provide power to drive a fan with maximum current draw of 1.0A
 One neutral should be connected to the mains supply
 The other three lives should be connected to the Mains supply individually which then activates the
corresponding potentiometer on the output of the controller
 There is no provision on the controller for an earth connection.
 The unit must be installed in a secure enclosure to prevent contact with live parts
There is one terminal strip output to the fan or fan array which should be connected to the fan +10V output, 0-10V
fan control input and fan ground.
The voltage between the 0-10V output and GND terminals is determined by the potentiometer that is activated by
the switched live connections and the position of the potentiometer. There are no limitations on the output of the
potentiometer which means each potentiometer can set any output voltage between 0 and 10V to the fan via the
terminal strip. The potentiometers are marked as high, medium and low as this would be the expected convention
to be used; if unexpected speeds are encountered when switching the live inputs, please check the potentiometer
settings.

Operating and Maintenance Instructions
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4.0 Specification
Product
CN1102
Supply Voltage
115/
230V, 1~, 50
/60Hz
Hz
Supply Current
Maximum
1.0A
(Including fans)
Enclosure
IP
00
Weight
100g
Operating
Environment
0°C to +
60
°C
,
85
%
RH at 4
0
°C
maximum
-
n
on
-
condensing
Compliance
Low
voltage Directive 2014/35/EU
Table 1 - Specification
5.0 Installation
The 3-speed switched live EC fan controller - CN1102 – is a built-in appliance designed as a component part to be
installed in a clean, dry area within the user’s equipment or within an enclosure that prevents access to live parts
and reduces the risk of contamination by ingress of dust and moisture.
There is one mounting hole on the rear of the housing that can accommodate a mounting screw with an 8mm
diameter pan head and the 2nd screw should use the DIN-rail release clip, or the controller can be DIN-rail mounted.
It is recommended that the control signal cable is kept separate from mains supply wiring and shielded cabling can
be used if appropriate to prevent unwanted interference.
Exposure to vibration, high temperatures and direct sunlight should be avoided. The unit shall be installed according
to relevant safety guidelines and requirements included in the appropriate standards that form the basis of the low
voltage directive.
6.0 Mechanical Outline & Connection Detail
Dimensions
Figure 1 - Dimensions of the unit

Operating and Maintenance Instructions
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Figure 2 - Mains and control connections
Controller connection including power to the fan - Maximum 1.0A current draw from the fan
Figure 3 - Wiring diagram below 1 A total load

Operating and Maintenance Instructions
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ebm-papst UK Ltd Chelmsford Business Park Chelmsford Essex CM2 5EZ
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Controller connection for fans with current consumption greater than 1.0A or for an array of fans
Figure 4 - Wiring diagram above 1 A total load
7.0 Connections
Screw Terminal Block
Designation
Connection
3-way
0
Fan Control GND (Blue Wire)
0
-
10
Fan signal wire (Yellow Wire)
10
+10V output (Red Wire)
6-way
Lo
Switched live to activate Low speed potentiometer
M
Switched live to activate Medium speed potentiometer
Hi
Switched live to activate High speed potentiometer
N
Mains Neutral
N
Fan Neutral (If used)
L
Fan Live (Below 1.0A!)
Table 2 - Connections

Operating and Maintenance Instructions
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ebm-papst UK Ltd Chelmsford Business Park Chelmsford Essex CM2 5EZ
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8.0 Functions
Fan speed adjustment is achieved by changing the wiper position on the potentiometers. A potentiometer output
becomes active when mains live is applied to the corresponding input terminal.
Note: the potentiometer range of adjustment is between 0 and 10 KΩ. When more than one fan is connected to
the control signal output there will be some loss of linearity and resolution at the higher speed settings according
to the control response graphs below.
Figure 5 - Graphs of the relationship of pot. setting to control voltage o/p
9.0 Transport and Storage
 Store in a dry environment
 Storage temperature: -20°C to +80°C.
10.0 Maintenance and Servicing
There are no user serviceable parts

Operating and Maintenance Instructions
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ebm-papst UK Ltd Chelmsford Business Park Chelmsford Essex CM2 5EZ
Telephone: [phone] Fax: [phone]
e-mail [e-mail]
19/07/2022 09:04:36
11.0 CE Front Page