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CN-SFT
Safety control unit for category 3 and 4
Technopolymer
CN-SFT.115
Safety control unit for category 3 and 4
Standard dimensions
CN-SFT.46
Safety control unit for category 3 and 4
Reduced dimensions
Description
Main specifications
Material
Polyamide-based (PA) technopolymer, grey colour.
Standard executions
Safety control unit for category 3 and 4.
- CN-SFT.115:Â standard dimensions.
- CN-SFT.46:Â reduced dimensions.
Contact blocks in the standard execution:
- NO-NC:Â 1 NO contact + 1 NC contact.
- NC-NC:Â 2 NC contacts.
General information
Features and applications
CN-SFT can be used in conjunction with the following Elesa products:
- ESC-SFTÂ
- CFSWÂ
- CFSQÂ
- M.2000-SWMÂ
The CN-SFT safety control unit is able to control the status of two contacts (safety Reed magnetic sensors, emergency buttons, mechanical safety switches, safety interlocks for mobile guards): the output is activated by pressing and releasing the START button (reset) only if the NO contact is open and the NC contact is closed (NO-NC version) or only if the two NC contacts are closed (NC-NC version).
The switching of even just one input contact results in a safe situation, placing the safe outputs in an open state and preventing them from closing again, even after a new switching of the contact and pressing the START (reset) button.
 | Table of LEDs | |||
|---|---|---|---|
| Function | LED | Colour | Status |
| Power supply | PWR | Green | on |
| Outputs 13-14 and 23-24: OPEN | CH1 - CH2 | Green - Green | off - off |
| Output 41-42: OPEN | |||
| Output 41-54: CLOSED | |||
| Outputs 13-14 and 23-24: CLOSED | CH1 - CH2 | Green - Green | on - on |
| Output 41-42: CLOSED | |||
| Output 41-54: OPEN | |||
 
 
 Electrical connections
Model CN-SFT.115-2NC and model CN-SFT.46-2NC
NOTE: the contact that is normally closed when the guard is closed is considered the NC input.
 
 Model CN-SFT.115-1NC+1NO and model CN-SFT.46-1NC+1NO
NOTE: the contact that is normally closed when the guard is closed is considered the NC input. The contact that is normally open when the door is closed is considered the NO input.
 
 CN-SFT.115
| L | s | H |  |
|||
|---|---|---|---|---|---|---|
| Code | Description | Actions | ||||
| 225101 | CN-SFT.115-2NC | 99 | 22.5 | 114.5 | 156 |
|
| 225106 | CN-SFT.115-1NC+1NO | 99 | 22.5 | 114.5 | 156 |
|
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