Serviceline Industrial Sensors
Serviceline Explosion Protection

AS-Interface safety module VBA-2E-KE4-ENC-S

  • SIL3 (EN 62061)
  • Addressing jack
  • Memory card for configuration data

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-2E-KE4-ENC-S

Product Description
KE4 control cabinet module
2 inputs for incremental rotary encoders
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
PFHd2.77 E-9
Indicators/operating means
LED FAULTerror display; LED red
red: communication error
LED AS-iAS-Interface voltage; LED green
LED AUXext. auxiliary voltage UAUX ; LED green
LED CONFOff = Normal mode, yellow LED
LED STATEStatus of rotary encoder, 2 yellow LEDs
LED FREQUENCYLow frequency or halt, 2 LED yellow
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;
≤ 200 mA from AUX
Interface 1
Interface typeChip card slot
Number/Type2 inputs for incremental rotary encoders
AMP mini-IO connector
VoltageUb = 5 V DC
Signal delay100 ms at 1015 Hz < flimit
140 ms at 45 Hz < flimit < 1015 Hz
700 ms at flimit < 45 Hz
Signal frequencyParameterization range 25 Hz … 200 kHz
Current≤ 100 mA
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013
Standard conformity
Degree of protectionEN 60529:2000
Electrical safetyEN 954-1:1996 (up to Kategorie 4), EN 62061:2005 (up to SIL3) EN ISO 13849-1:2006 to PL e
InputEN 61131-2:2007
AS-InterfaceEN 62026-2:2013
Programming instructions
ProfileSafe input slaves: S-0.B.E
Diagnosis slaves: S-7.A.5.
IO code0
ID codeB
ID1 codeF
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-2E-KE4-ENC-S


The AS-Interface rotational speed monitor VBA-2E-KE4-ENC-S is a safe control cabinet module with 2 inputs. The inputs comprise 2 safe inputs for incremental encoders. The rotational speed monitor monitors the standstill, rotational speed and direction of rotation on a maximum of two axes and sends a safe signal via the AS-Interface network when a value falls below the set threshold.

The housing, which is only 22.5 mm wide, requires little space in the switch cabinet. The module is installed by simply snapping it onto the 35 mm standard mounting rail to EN 50022. An addressing socket is integrated in the module.

The AS-Interface and external power supply are each connected by means of a 2-station terminal block. This permits the simple removal of the supply during commissioning or servicing. The supply to the rotary encoders is fed either internally via the module from the AS-Interface or via an external supply. The current status of the inputs is indicated via yellow LEDs. Communication faults are indicated via red LEDs. The display of the operating voltage and the address 0 is provided by a green LED.

The configuration data is saved on a chip card, making it easier to replace the module in the event of damage.

Product Documentation: VBA-2E-KE4-ENC-S

Language Selection:
Brief InstructionsLanguageFile TypeFile Size
Mounting Instruction VBA-2E-KE4-ENC-S / Montageanleitung VBA-2E-KE4-ENC-SALLPDF3682 KB
Safety and Security Documentation
Instruction Manual VBA-2E-KE4-ENC-S / Betriebsanleitung VBA-2E-KE4-ENC-SALLPDF1945 KB
Manual VBA-2E*-KE4-ENC*ENGPDF5045 KB

Design / Simulation: VBA-2E-KE4-ENC-S

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

Approvals: VBA-2E-KE4-ENC-S

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
EU TUV Nord Functional Safety44 205 16 000805ALLPDF1457 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-2490EALLPDF213 KB

Software: VBA-2E-KE4-ENC-S

Language Selection:
Software ToolsRelease InfoFile TypeFile Size
SISTEMA SLB Library AS-Interface Safety / SISTEMA SLB Library AS-Interface SafetyZIP622 KB

Associated Products: VBA-2E-KE4-ENC-S

Matching System Components
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Monitoring of safe standstill, safe speed, and safe direction of rotation, User-friendly configuration via PC software, Satisfies technical safety requirements to SIL 3/PLe with just one safety rotary encoder per rotational axis, Can be extended to max. 40 rotational axesfa

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AS-Interface Product Range

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