Beckhoff KL3142 Bus Terminal 2-channel analog input

Beckhoff KL3142 Bus Terminal 2-channel analog input

The KL3142 analog input terminal handles signals in the range between 0 and 20 mA. The current is digitized to a resolution of 16 bits, and is transmitted, in an electrically isolated form, to the higher-level automation device. The input channels of the Bus Terminal have differential inputs and a common, internal ground potential. With its high measurement accuracy of ±0.05% (relative to full scale value), the terminal is optimized for high-precision control processes, such as dosing, filling, or quality assurance. The KL3142 combines two channels in a single housing. An open lead or overload condition are detected, and the terminal status is relayed to the controller via the K-bus. The run LEDs indicate data exchange with the Bus Coupler, the error LEDs indicate overload.

Product information

Technical data:KL3142

Number of inputs:2

Power supply:via the K-bus

Signal current:0…20 mA

Technology:differential input

Internal resistance:typ. 100 Ω shunt

Common-mode voltage UCM:max. ±10 V

Conversion time:140 ms, configurable

Filter:50 Hz, configurable

Resolution:16 bit

Measurement error/uncertainty:< ±0.05% (relative to full scale value)

Surge voltage resistance:35 V DC

Electrical isolation:500 V (K-bus/signal voltage)

Current consumption power contacts:–

Current consumption K-bus:typ. 85 mA

Bit width in the process image:input: 2 x 16 bit data (2 x 8 bit control/status optional)

Special features:increased measuring accuracy

Weight:approx. 70 g

Operating/storage temperature:0…+55°C/-25…+85°C

Relative humidity:95%, no condensation

Vibration/shock resistance:conforms to EN 60068-2-6/EN 60068-2-27

EMC immunity/emission:conforms to EN 61000-6-2/EN 61000-6-4

Protect. rating/installation pos.:IP20/variable

Approvals/markings:CE, UL, ATEX, IECEx

Pluggable wiring:for all KSxxxx Bus Terminals

Housing data Beckhoff KL3142 Bus Terminal 2-channel analog input

Design form:compact terminal housing with signal LEDs:terminal housing with pluggable wiring level

Material:polycarbonate

Dimensions (W x H x D):12 mm x 100 mm x 68 mm

Installation:on 35 mm DIN rail, conforming to EN 60715 with lock

Side by side mounting by means of:double slot and key connection

Marking:labeling of the BZxxx series

Wiring:solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver