Beckhoff KL3448 Bus Terminal 2-channel analog input

Beckhoff KL3448 Bus Terminal 2-channel analog input

The KL3448 analog input terminal processes signals in the range between 0 and 20 mA. The current is digitized to a resolution of 12 bits and is transmitted, in an electrically isolated form, to the higher-level automation device. The KL3448 combines eight channels in one housing and is particularly suitable for space-saving installation in control cabinets. The use of single conductor connection technology enables the connection of multi-channel sensor technology with minimum space requirements. The reference ground for all inputs is the 0 V power contact. The power contacts are connected through. Overload is detected. The terminal status is relayed to the controller via the K-bus. The LEDs indicate the data exchange with the Bus Coupler as well as overload or wire breakage.

Product information

Technical data:KL3448

Number of inputs:8

Power supply:via the K-bus

Signal current:0…20 mA

Technology:single-ended

Internal resistance:< 85 Ω

Common-mode voltage UCM:–

Conversion time:~ 4 ms

Resolution:12 bit

Measurement error/uncertainty:< ±0.3% (relative to full scale value)

Surge voltage resistance:30 V DC

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

Current consumption power contacts:–

Current consumption K-bus:typ. 105 mA

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

Configuration:no address or configuration setting

Special features:high packing density

Weight:approx. 55 g

Operating/storage temperature:-25…+60°C/-40…+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, DNV GL

Pluggable wiring:for all KSxxxx Bus Terminals

Housing data Beckhoff KL3448 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