General Specification
The analog input terminals process signals in the range between 0 and 20 mA. The current is digitised to a resolution of 12 bits and is transmitted, in an electrically isolated form, to the higher-level automation device. In the 4-channel Bus Terminal, the four inputs are
2-wire versions and have a common ground potential. The reference ground of the inputs is the internal ground. The 8-channel variant combines
all 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
A sensor is a type of transducer that converts one type of energy into another for various purposes including measurement or information transfer technology with minimum space requirements. The reference ground for all inputs
is the 0 V power contact. In both Bus Terminals the power contacts are connected through. Overload is detected in both variants. The terminal
status is relayed to the controller via the Standard Bus. The LEDs indicate the data exchange with the Bus Coupler as well as overload or wire breakage.
Electrical and Mechanical Specification
|
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
|
|
