CN-SFT.115Safety control unit for category 3 and 4

Standard dimensions

Technopolymer

Technical datasheet

CN-SFT.115

Catalogue	Description	L	s	H
225106	CN-SFT.115-1NC+1NO	99	22.5	114.5	156
225101	CN-SFT.115-2NC	99	22.5	114.5	156

Material

Polyamide-based (PA) technopolymer, grey colour.

Standard executions

Safety control unit for category 3 and 4.

CN-SFT.115: standard dimensions.

CN-SFT.46: reduced dimensions.

Contact blocks in the standard execution:

NO-NC: 1 NO contact + 1 NC contact.

NC-NC: 2 NC contacts.

Features and applications

CN-SFT can be used in conjunction with the following Elesa products:

ESC-SFT

CFSW

CFSQ

M.2000-SWM

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

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.