4- and 8-Channel Analog Input, 0–20 mA

These 4- and 8-Channel Analog Input terminals process signals in the range between 0 and 20 mA. The current is digitized to a resolution of 12 bits, and this electrically isolated signal is transmitted to the higher-level automation device.

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  • The 4-channel unit has 2-wire inputs with a common ground potential, using the internal ground as the reference ground for the inputs
  • The 8-channel version combines all eight channels in one housing, and is particularly useful for saving space in the control cabinet by means of single-conductor connection technology
  • Power contacts are looped through and the reference ground for all inputs is the 0 V power contact
  • Terminal status is relayed to the controller via the Standard-Bus
  • LEDs indicate the status of the data exchange with the bus coupler as well as alerting the user to overload conditions or wire breakage

 

 

Electrical and Mechanical Specification

AKT-AN-420-000

AKT-AN-820-000

Number of inputs

4

8

Power supply

via the Standard-bus

 

Signal current

0…20 mA

 

Internal resistance

< 85 Ω

 

Common-mode voltage UCM

30 V max.

 

Conversion time

~ 2 ms

~ 4 ms

Resolution

12 bits

 

Measuring error

< ±0.3 % (relative to full scale value)

 

Surge voltage resistance

30 V DC

 

Electrical isolation

500 Vrms (Standard-bus/signal voltage)

 

Current consump. from Standard-bus

typ. 85 mA

typ. 105 mA

Bit width in the process image

input: 4 x 16 bit data (4 x 8 bit control/status optional)

input: 8 x 16 bit data (8 x 8 bit control/status optional)

Configuration

no address or configuration settings

 

Weight

75 g

 

Operating/storage temperature

0 C ... +55 °C /-25 °C... +85 °C

 

Relative humidity

95 %, no condensation

 

Vibration / shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27/ 29

 

EMC immunity/emission

conforms to EN 61000-6-2 / EN 61000-6-4

 

Protect. class / installation pos.

IP 20 / variable

 

TypeTitleSizeDate 

Data Sheet

Kollmorgen 4-8 Channel 0-20mA Analog Input Datasheet en-us revAKollmorgen 4-8 Channel 0-20mA Analog Input Datasheet en-us revA201.8 KB8/28/2012Email
US Production