KEBA KeConnect AI 240/A Analog input modules

Product features

• 4 analog voltage inputs usable as differential inputs

or as single-ended inputs

• Resolution 14 bit

• Sensor failure detection

• Electronic parameter chip

Short description

Analog input module KeConnect AI 240/A features four analog voltage inputs that process differential or ratiometric input

signals in the range from ±10 V or 0-10 V with a resolution of 14 bit.

A sensor failure, should it occur, is reported to the higher-level central module and can be evaluated in the application.

This module is attached directly to a CPU module or can be operated with all KEBA controls by means of a bus coupler.

Analog inputs

Number / type of inputs 4 voltage inputs

Resolution 14 bit

Signal range ±10 V or 0 – Uref (10 V)

Max. measurement signal ±10.4 V

Input type Differential or single-ended

Galvanic isolation No

Reference voltage output 10 V ±2.5 %; max. 20 mA

Scan repeat cycle 1 ms

Input impedance in signal range 10 MΩ

Input filter characteristic – order First order

Input filter limiting frequency 250 Hz

Conversion method Successive approximation

Monotonicity without error codes Yes

Synchroneity control ±13.5 V

Synchroneity suppression > 80 dB

Value of the lowest bit (LSB) 1.3 mV

Maximum permitted continuous load (wit

hout damage) ±30 V

Typ. temp. coefficient measurement error ±5 ppm of scale end value / °C

Max. temp. coefficient measurement error ±20 ppm of scale end value / °C

Largest error at 25 °C ±0.01 % of scale end value

Dimensions, weight

Height 120 mm

Width 22.5 mm front plate / 32.5 mm incl. K-bus plug

Depth 100 mm

Weight 135 g

Environmental conditions

Operating temperature +5 °C … +55 °C

Storage temperature-40 °C … +70 °C

Relative air humidity 10 % to 95 % (non-condensing)

Vibration resistance / shock resistance Acc. to EN 61131-2

General

Supply voltage 24 V DC from K-bus, 5 V DC from K-bus

Overvoltage category II

Protection class III acc. to EN 61131-2

Addressing on K-bus Via 16-digit address switch, on the side

Type of terminals Open - pitch 5.08 mm

Power consumption K-bus 24 V 2 W

Power consumption K-bus 5 V 0.3 W