Serviceline Industrial Sensors
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This product has been replaced.Go to replacement product VAA-2E2A-KE1P-S/E2

AS-Interface safety module VAA-2E2A-KE1-S/E2

  • 2 safe inputs for mechanical contacts such as EMERGENCY-STOP switch
  • Housing with removable terminals
  • Communication monitoring
  • Power supply of outputs from the external auxiliary voltage
  • Power supply of inputs from the module
  • Function display for bus, ext. auxiliary voltage, inputs and outputs
  • Output overload monitoring
  • Switchable internal logic operation of the inputs and outputs via parameter bit
  • Addressing jack

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  VAA-2E2A-KE1-S/E2

Product Description
KE1-Safety module for the control cabinet
2 safety-related inputs and
2 conventional electronic outputs
General specifications
Slave typeSafety-Slave
AS-Interface specificationV2.1
Required master specification≥ V2.1
UL File NumberE223772
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL e
MTTFd200 a
Indicators/operating means
LED FAULTerror display; LED red
red: communication error or address is 0
red flashing: Output supply overload
LED PWRAS-Interface voltage; LED green
LED AUXext. auxiliary voltage UAUX ; LED green
LED INswitching state (input); 2 LED yellow
LED OUTSwitching state (output); 2 LED yellow
Electrical specifications
Auxiliary voltage (output)20 ... 30 V DC PELV
Rated operating voltage26.5 ... 31.6 V from AS-Interface
Rated operating current≤ 70 mA
Protection classIII
Surge protectionUAUX, Ue: overvoltage category II, safe isolated power supplies (PELV)
Number/Type2 safety-related inputs for mechanical contacts, cross-circuit monitored:
2 single-channel contacts: up to category 2 in accordance with EN 954-1 or
1, 2-channel contact: up to category 4 in accordance with EN 954-1
Cable length must not exceed 300 m per input.
Supplyfrom AS-Interface
Voltage20 ... 30 V DC pulsed
Current loading capacityinput current limited ≤ 15 mA,
overload and short-circuit resistant
Number/Type2 conventional electronic outputs, PNP
Supplyfrom external auxiliary voltage UAUX
Voltage≥ (UAUX - 0.5 V)
Current0.5 A per output
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013 EN 61496-1:2004
Standard conformity
Insulation coordinationEN 50178:1998
Electromagnetic compatibilityEN 61000-6-2:2005, EN 61000-4-5:2005 1 kV asymmetric, criterion B, EN 61000-6-4:2007
Degree of protectionEN 60529:2000
Fieldbus standardEN 62026-2:2013
Electrical safetyEN 50178:1998 IEC 60204-1:2007
Emitted interferenceEN 61000-6-4:2001
AS-InterfaceEN 62026-2:2013
Functional safetyEN ISO 13849-1:2006 up to PL e, IEC 61508:2009 up to SIL 3
StandardsNFPA 79:2002
Programming instructions
IO code7
ID codeB
ID1 codeF
ID2 code0
Data bits (function via AS-Interface) input output
D0 dyn. safety code 1 OUT 1
D1 dyn. safety code 1 OUT 2
D2 dyn. safety code 2 -
D3 dyn. safety code 2 -
Parameter bits (programmable via AS-i)function
P0Logic operation:
P0 = 1 (default settings): The outputs are controlled via AS-Interface.
P0 = 0: The outputs are controlled via AS-Interface or the inputs. The corresponding output is activated on opening the contacts of an input.
P1not used
P2not used
P3not used
Ambient conditions
Ambient temperature-25 ... 50 °C (-13 ... 122 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Relative humidity85 % , noncondensing
Climatic conditionsFor indoor use only
Altitude≤ 2000 m above MSL
Shock and impact resistance10 g, 16 ms in 6 spatial directions 1000 shocks
Vibration resistance0.75 mm 10 ... 57 Hz , 5 g 57 ... 150 Hz, 20 cycles
Pollution degree2
Mechanical specifications
Degree of protectionIP20
Connectionremovable terminals, terminal connection ≤ 2.5 mm2
HousingPA 66-FR
Mass80 g
MountingDIN mounting rail
Tightening torque of clamping screws0.5 Nm ... 0.6 Nm

Documents: VAA-2E2A-KE1-S/E2

Instruction manualsLanguageFile TypeFile Size
Instruction manualENGPDF1634 KB
BetriebsanleitungGERPDF1637 KB

Approvals+Certificates: VAA-2E2A-KE1-S/E2

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2909APDF162 KB
AS-Interface54201PDF200 KB
Russia TUV GOST-R101-KC/542PDF90 KB
TUV Rheinland Functional Safety968/EZ 151.01/03PDF38 KB
US TUV Rheinland USA Functional SafetyUS 72060083LINK---

Software: VAA-2E2A-KE1-S/E2

Software ToolsRelease InfoFile TypeFile Size
SISTEMA Library AS-Interface Safety / SISTEMA-Bibliothek AS-Interface SafetyZIP622 KB

Associated Products: VAA-2E2A-KE1-S/E2


AS-Interface Handheld with accessoryfa

Adapter cable module/hand-held programming devicefa

Function: VAA-2E2A-KE1-S/E2

The VAA-2E2A-KE1-SE is an AS-Interface safety module with two safety-related inputs and two outputs. A self-testing electronic protective system can be connected to the two safety-related inputs. The outputs are conventional electronic outputs that can be loaded to a total of 3 A (max. 1 A per output).

The housing is only 22.5 mm wide and 48.5 mm tall and takes up little space in the switch cabinet. A snap-on function mounts the module onto the 35 mm mounting strip in line with EN 50022. An addressing socket is integrated in the module. The connection is made via plug-in terminals. A four-way (black) terminal block is used for the inputs. The AS-Interface is connected via a two-way (yellow) terminal block.

Each channel has an LED mounted on the top side of the module to display the current switching status. There is an LED for monitoring AS-Interface communication and for displaying that the module has the address 0. In the event of communication faults, the outputs are disconnected from the power supply (only for P0=1).

If a noncontact protective system is connected, the module can be upgraded to performance level e in accordance with EN ISO 13849-1 if wired appropriately. As per the approval in accordance with EN 62061, a Safety Integrity Level of up to SIL 3 can be reached.

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