Epec SL84 Safety Control Unit


SL84 is a general purpose controller intended for typical machine safety functions, for example prevention of unexpected
movement or safety related stop-function. The unit is functional safety certified * up to performance level PLd Cat. 2 according
to IEC 13849-1:2015 and SIL 2 according to IEC 61508:2010 and IEC 62061:2005.

SL84 is utilizing up-to-date safety technology with32-bit multi-core lockstep safety CPU and memory protection for the application. The unit is designed for extreme environments, the full aluminum enclosure and LEAVYSEAL connectors
grants IP69k protection rating, shocks and vibrations up to 100G and excellent EMI / EMC performance.

Together with SL84 controller Epec offers a set of pre-certified safety libraries and SW tools to optimize customers machine time to market.

› Read more about Epec’s functional safety solutions

  • Safety performance up to SIL2 (IEC 61508:2010 and IEC 62061:2005) and PL d Cat. 2 (ISO 13849-1:2015), as a stand-alone controller *
  • Processor: 32 bit multicore CPU with lock-step and memory protection
  • Flash memory: 8 Mbyte
  • RAM: 512 kbyte
  • Non- volatile RAM 16kbyte
  • PLCopen application size: up to 1,8 Mbyte
  • CAN: 2
  • CAN wake-up
  • I/O: 69 (35 inputs + 34 outputs)
  • 26 GND pins
  • Three power supply groups – Safety cut-off feature in a group of 10 PWM/DO outputs
  • IP class: IP69k
  • Temperature range: -40 … + 85 °C
    -40 … +185 °F
  • Connectors: 1 x LEAVYSEAL 21 pins + 2 x LEAVYSEAL 46 pins
  • CODESYS version: 3.5 SP10
  • CODESYS V3 Safety SIL 2 programming
  • Supported CAN protocols: CANopen, CANopen Safety, SAEJ1939
  • CANopen Safety protocol for safety-related communication according to EN50325-5
  • Extensive set of pre-certified PLCopen libraries for safety related applications
  • Three-colored diagnostic LED for quick status check and fault detection


Epec Control Units



Epec Control Units

Symbol / Name Explanation
CEThis product complies with the requirements set in the CE Standard.
E17This product is certified with normal automotive (E17) EMC (electromagnetic compatibility) standards.
RoHS2This product complies with the RoHS directive (The Restriction of the use of certain Hazardous Substances in Electrical and Electronic Equipment).
EU declaration of conformityThis device is in compliance with Directive 2014/53/EU.
Functional Safety CertificationTÜV SÜD Certification and EC-Type examination no. Z10 003772 0003 Rev. 03
ISO 13849:2015 Up to PL d Cat 2
EN IEC 61508:2010 Up to SIL 2
IEC 62061 Up to SIL 2
Certification also includes yearly Epec factory inspection
Ordering codeE30FSL84-022 (unpainted)E30FSL84-020 (painted)
Technical ManualMAN000728MAN000728
Safety ManualMAN000730MAN000730
5 V REF22
PWM / DO / CM 3 A
DO / CM 5 A44
DO 3 A88
DO (GND) 3 A22
(0-5 V / 0-22 mA configurable by software)
PI/DI (rising threshold 3,3 V, falling threshold 1,7 V)1010
PI/DI (threshold 2,6 V)66
DI pins for defining communication parameters
PI/DI (threshold 2,6 V)
CODESYS version3.5 SP103.5 SP10

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tested, designed and produced in finland.

Epec control systems are made 100% in Finland. We are a control system expert, specializing in intelligent control systems and information systems for even the most demanding conditions. Epec’s organization and processes have been fine tuned to cooperate with large international customers.

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