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CN20, CN34 SERIES DAMPER ACTUATOR FOR MODULATING AND FLOATING CONTROL 

 

 7 

EN0B-0341CH33 

R0803A 

Wiring Diagrams 

A1

 CN7220A2007, CN7234A2008 MODULATING

 

A2

 CN7220A2007, CN7234A2008 FLOATING

 

 

 

A3

 CN7220A2007, CN7234A2008 2-POS 

A4

 END SWITCHS (Models with switch only) 

 

 

  NOTE:

 Internal end switches S1 and S4 must be connected to the same power source. 

 
Below 2 tables summarize the information presented in the preceding wiring diagrams. 

Function selection switch  

Terminal 

Modulating 

Floating 

2-position 

24 V ~/+ (power) 

unused  

unused 

common 

/

 common 

/

 common 

/

 

0[2]...10 V (control) 

24 V ~/+ (control signal) 

24 V ~/+ (control signal) 

24 V ~/+ (override) 

24 V ~/+ (control signal) 

24 V ~/+ (control signal) 

0[2]...10 V (feedback) 

unused 

unused 

NOTE:

   All cables connected to these terminals must be equipped with spark suppression. 

 

 

Connecting cable 

Terminal 

Description 

S1 common 
S2 normally 

closed 

CCW (left) 5° 

S3 normally 

open 

S4 common 
S5 normally 

closed 

End switches 

(Models with internal 

switches only) 

CW (right) 85° 

S6 normally 

open 

 

 

Summary of Contents for CN34 Series

Page 1: ...Supply voltage 24 Vac dc 15 50 60 Hz Nominal voltage 24 Vac dc 50 60 Hz All values stated hereinafter apply to operation under nominal voltage conditions Power consumption CN7220A2007 6 VA 3 W CN7234A2008 6 VA 3 W Ambient limits Ambient operating limits 20 60 C 5 140 F Ambient storage limits 40 80 C 40 175 F Relative humidity 5 95 non condensing Safety Protection standard IP54 as per EN 60529 Prot...

Page 2: ...liary Switches 2 Two Internal Auxiliary Switches XX System Controlled Numbers C N 72 20 A 2 0 XX Fig 1 Product Identification System OPERATION FUNCTIONS Legend for Fig 2 1 Self centering shaft adapter 2 Retainer clip 3 Rotational angle scales 0 90 90 0 4 Mechanical end limits 5 Declutch button 6 Anti rotation bracket 7 Function Selection Switch 8 Access cover Contents of Package The delivery packa...

Page 3: ... function selection switch setting Table 2 describes the actuator behavior stops rotates CCW or rotates CW for the 2 position mode in relation to the control signals applied to terminals 3 and 4 and to the function selection switch setting Table 3 describes the actuator behavior stops rotates CCW rotates CW runs in proportional position or runs to 0 of max stroke for the modulating mode in relatio...

Page 4: ... see Fig A1 the control signal s value rises up into the upper dead band i e to more than the max control signal minus 0 14V or drops down into the lower dead band i e to less than the min control signal plus 0 14V and if the shaft adapter can remain at the respective upper or lower mechanical end limit at least 3 seconds the actuator will recognize the new position automatically and auto adaption...

Page 5: ...d Internal End Switches NOTE Applicable to models with internal switches only The internal end switches are set to change from common to normally open at angles of 5 and 85 respectively from the totally counterclockwise position 5 10 15 92 5 0 90 2 5 85 80 75 85 80 75 2 5 90 0 92 5 5 10 15 5 10 15 0 90 85 80 75 CCW internal end switch CW internal end switch actuator scale clockwise end switch scal...

Page 6: ...le Fig 12 Access cover models with internal switches Depending upon the model the access cover may have one or two terminal strips including a layout with a description for each of the terminals Fig 13 Actuator with access cover removed models with internal switches OPTIONAL ACCESSORIES The following optional accessories can be ordered separately Auxiliary Switch Kit Order no SW2 S1 S2 S3 A B S4 S...

Page 7: ...d in the preceding wiring diagrams Function selection switch Terminal Modulating Floating 2 position 1 24 V power unused unused 2 common common common 3 0 2 10 V control 24 V control signal 24 V control signal 4 24 V override 24 V control signal 24 V control signal 5 0 2 10 V feedback unused unused NOTE All cables connected to these terminals must be equipped with spark suppression Connecting cabl...

Page 8: ...stion Controls Division of Honeywell Technologies Sàrl Ecublens Route du Bois 37 Switzerland by its Authorized Representative Automation and Control Solutions Honeywell International Inc Honeywell Tianjin Limited 1985 Douglas Drive North 66 BaiHe Road TEDA Golden Valley MN 55422 Tianjin 300457 P R C EN0B 0341CH33 R0803A DIMENSIONS ...

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