KL3122 | Bus Terminal, 2-channel analog input, current, 4…20 mA, 16 bit, differential

KL3122 | Bus Terminal, 2-channel analog input, current, 4…20 mA, 16 bit, differential

The KL3122 analog input terminal handles signals in the range from 4 to 20 mA. The current is digitized to a resolution of 16 bits (the default is 15 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 possess a common, internal ground potential. The KL3122 combines two channels in a 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 give an indication of the data exchange with the Bus Coupler. The error LEDs indicate an overload condition.

Number of inputs 2

Power supply via the K-bus

Signal current 4…20 mA

Technology differential input

Internal resistance typ. 50 Ω shunt, load: 60 Ω + diode voltage

Common-mode voltage UCM max. 35 V

Conversion time 140 ms, configurable to 2 ms

Filter 50 Hz, configurable

Resolution 15 bit, configurable to 16 bit

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

Surge voltage resistance 35 V DC

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

Current consumption power contacts – (no power contacts)

Current consumption K-bus typ. 60 mA

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

Configuration no address or configuration setting

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

Ex marking ATEX:

II 3 G Ex ec IIC T4 Gc

IECEx:

Ex ec IIC T4 Gc

>>> Refer to technical document: kl3102_kl3112_kl3122en