Serviceline Industrial Sensors
Serviceline Explosion Protection

AS-Interface safety module VBA-2E2A-KE4-ENC/SSI-S

  • SSI, Sin/Cos, TTL interface
  • Safe speed monitoring depending on the position
  • Safe position detection
  • Integrated safety logic
  • Memory card for configuration data
  • Up to SIL3 (EN 62061) and PLe (EN13849-1)

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  VBA-2E2A-KE4-ENC/SSI-S

Product Description
KE4 control cabinet module for rotary encoders
2 safe inputs und 2 safe outputs
General specifications
Node typeA/B node
AS-Interface specificationV3.0
Required gateway specification≥ V3.0
UL File NumberE223772
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL e
Mission Time (TM)20 a
PFHd5.08 E-9
Indicators/operating means
LED F1, F2rotational movement/halt
LED FAULTerror display; LED red
red: communication error
LED ST1, LED ST2Status of rotary encoders, 2 yellow LEDs
LED AS-iAS-Interface voltage; LED green
LED AUXext. auxiliary voltage UAUX ; LED green
LED CONFDual color-LED, yellow/red, configuration mode
LED O1, O2Stauts of outputs
Electrical specifications
Auxiliary voltage (input)18 … 30 VDC
Insulation voltage500 V AS-Interface/UAUX:
Rated operating voltage18,0 ... 31.6 V from AS-Interface
Rated operating current≤ 150 mA from AS-Interface;
≤ 1400 mA from AUX
Interface 1
Interface typeChip card slot
Number/Type2 inputs for incremental/absolute rotary encoders / 2x RJ45
Voltagemax. 30 V DC , external
Signal delayDenpending on frequency, see instruction manual issue "system response time"
Signal frequencyParameterization range 1 Hz … 250 kHz
Number/Type2 safe electronic outputs
Supplyfrom external auxiliary voltage UAUX
Voltage24 V
Current loading capacitymax contact load: 700 mA DC-13 at 24 V
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013
Standard conformity
Degree of protectionEN 60529:2000
Electrical safetyEN 62061:2005 (up to SIL3) EN ISO 13849-1:2008 up to PL e
InputEN 61131-2:2007
AS-InterfaceEN 62026-2:2013
Programming instructions
ProfileSafe input slaves: S-7.B.E. , ID1=F
Diagnosis slaves: S-7.A.5., ID1=7 (factory default setting)
IO code7
ID codeB
ID1 codeE
Ambient conditions
Ambient temperature0 ... 55 °C (32 ... 131 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Degree of protectionIP20
Connectionremovable terminals
rated connection capacity:
rigid/flexible (with and without wire-end ferrules): 0.25 mm2 ... 2.5 mm2
for multiple-wire connection with two wires of equal cross-section:
flexible with twin wire-end ferrules: 0.5 mm2 ... 1.5 mm2
HousingPA 66-FR
Height99 mm
Width22.5 mm
Length113 mm
MountingDIN mounting rail


ECLASS 13.027272603
ECLASS 12.027242604
ECLASS 11.027242604
ECLASS 10.0.127242604
ECLASS 9.027242604
ECLASS 8.027242604
ECLASS 5.127242604
ETIM 9.0EC001599
ETIM 8.0EC001599
ETIM 7.0EC001599
ETIM 6.0EC001599
ETIM 5.0EC001599
UNSPSC 12.139121535

Details: VBA-2E2A-KE4-ENC/SSI-S


AS-Interface safety module VBA-2E-KE4-ENC/SSI-S is a safe switch cabinet module with two safe inputs and two safe electronic outputs. The inputs can be used to connect devices such as incremental rotary encoders or absolute rotary encoders using SSI, sin/ cos, or TTL interfaces. The main functions of the safety module are: position monitoring, monitoring the speed range and deceleration ramp, safely switching off drives, and providing a safety logic for applications involving up to two axes (STO, SS1, SS2, SLS, SLP, SDI, SCA, etc.).

The housing is only 22.5 mm wide and takes up little space in the switch cabinet. A snapon function mounts the module onto the 35 mm mounting strip in line with EN 50022. An addressing socket is integrated in the module. The AS-Interface and the external power supply (AUX auxiliary voltage) are each connected via a two-way terminal block. This configuration allows the power supply to be easily separated when commissioning or servicing. The AUX auxiliary voltage is used to supply power to the outputs. The rotary encoders are supplied with power independently of the safety module. Yellow LEDs display the current status of the inputs. Communication faults are indicated by red LEDs. A green LED displays the operating voltage and the 0 address.

A chip card stores the configuration data and makes it easy to change the module in case of damage.

Product Documentation: VBA-2E2A-KE4-ENC/SSI-S

Language Selection:
Brief InstructionsLanguageFile TypeFile Size
Mounting Instruction VBA-2E2A-KE4-ENC/SSI-S / Montageanleitung VBA-2E2A-KE4-ENC/SSI-SALLPDF2834 KB
Safety and Security Documentation
Instruction manual VBA-2E2A-KE4-ENC/SSI-S / Betriebsanleitung VBA-2E2A-KE4-ENC/SSI-SALLPDF488 KB
Manual VBA-2E*-KE4-ENC*ENGPDF5045 KB

Design / Simulation: VBA-2E2A-KE4-ENC/SSI-S

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---
CAE EPLAN Data Portal / CAE EPLAN Data PortalALLLINK---

Associated Products: VBA-2E2A-KE4-ENC/SSI-S

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