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Beckhoff Automation (Pty) Ltd

7 Ateljee Street
Randpark Ridge, Randburg
Gauteng
2169, South Africa

+27 11 795 2898
info@beckhoff.co.za
www.beckhoff.com/en-za/

KL1212 | Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics

Image similar, may contain optional accessories
KL1212 | Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics

KL1212 | Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics

Signal LED 1
Error LED 1
Signal LED 2
Error LED 2
Power contact
+24 V
Power contact 0 V
Input 1
+24 V
Input 2
+24 V
0 V
+24 V
Top view 
Contact assembly 
KL1212 | Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics

KL1212 | Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics

The KL1212 digital input terminal acquires the binary 24 V DC control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. The Bus Terminal contains two channels whose signal states or errors are indicated by LEDs. The KL1212 generates a short-circuit proof 24 V DC supply voltage for sensors. A short circuit or a wire breakage in the sensor supply is detected, and the terminal status is relayed to the controller via the K-bus.

 

Special features:

  • input specification type 1
  • no bouncing due to mechanical switches thanks to 3 ms input filter
  • short-circuit proof sensor supply
  • possibility to diagnose open circuit and short circuit

Product status:

regular delivery

Product information

Technical dataKL1212
Connection technology3-wire
SpecificationEN 61131-2, type 1
Number of inputs2
Nominal voltage24 V DC (-15%/+20%)
“0” signal voltage-3…+5 V
“1” signal voltage15…30 V
Input filtertyp. 3.0 ms
Input currenttyp. 5 mA
Sensor supply max.0.5 A (short-circuit-proof)
Current consumption K-bustyp. 8 mA
Electrical isolation500 V (K-bus/field potential)
Bit width in the process imageinput/output: 4 inputs (2 error bits/2 signal bits); 2 outputs (2 sensor supply)
Input/output bit assignmentsinput: bit 3 bit 2 bit 1 bit 0 output: bit 1 bit 0
err. 2 err. 1 on 2 on 1 off 2 off 1
Configurationno address or configuration setting
Weightapprox. 55 g
Operating/storage temperature0…+55°C/-25…+85°C
Relative humidity95%, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/variable
Pluggable wiringfor all KSxxxx Bus Terminals
Approvals/markingsCE, UL, ATEX, IECEx, DNV GL
Ex markingATEX:
II 3 G Ex ec IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
Housing dataKL-12-8pinKS-12-8pin
Design formcompact terminal housing with signal LEDsterminal housing with pluggable wiring level
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
s*: 0.08…1.5 mm²,
st*: 0.08…1.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWGs*: AWG28…14,
st*: AWG28…14,
f*: AWG26…16
s*: AWG28…16,
st*: AWG28…16,
f*: AWG26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

Ordering information
KL1212Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics
KS1212Bus Terminal, 2-channel digital input, 24 V DC, 3 ms, with diagnostics, pluggable wiring

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