Features

– 8 channels for 0… .20 mA, 4… .20 mA d.c., single-ended unipolar inputs.

– 1 group of 8 channels isolated from ground.

– 12-bit resolution.

– Input shunt resistors protected to 30 V with PTC resistors.

– Analogue inputs are short-circuit protected to ZP or +24 V.

– Inputs can withstand HART communications.

– Process and Power

Process and power connections are made via removable connectors.

Process and power supply are connected via removable connectors.

The AI801 analogue input module has 8 current input channels.

The current inputs can withstand a short circuit of the transmitter power supply www.abb-drive.com with a minimum of 30 VDC without damage.

Current limiting is achieved by means of PTC resistors. The input resistance of the current inputs is 250 ohms, including the PTC resistors.

The module distributes external transmitter power to each channel. This adds a simple connection for power distribution to the two-wire transmitter.

There is no current limiting on the transmitter power terminals. All eight channels are isolated as a group from the module bus. Power to the input stage is converted from an external 24 V voltage.

Features

AI810 analogue input module

Number of channels 8

Input type Unipolar single-ended

Measuring range 0…. .20 mA, 0… .10 V, 4… 20 mA(1) , 2… 10 V (1)

Undervoltage/overvoltage range -5% / +15

Input impedance (voltage input) 290k ohms

Input impedance (current input) 230…. .275 Ohm

Maximum field cable length 600 metres (656 yards)

Voltage input, maximum non-destructive 30 VDC

NMRR, 50 Hz, 60 Hz >40 dB

Maximum error 0.1%

Resolution 12 bits

Temperature drift current 50 ppm/° C typical

80 ppm/°C maximum

Temperature Drift Voltage 70 ppm/° C

100 ppm/° C maximum

Update cycle time 8 ms

Current consumption 24 V (module bus) 40 mA

Current consumption 5 V (module bus) 70 mA

Power dissipation 1.5 W

Voltage monitoring Internal power supply

Transmitter power fusing on MTU (TU830 max. 1 AT per group)

Sensor power distribution 1 A max. per connection

Input filter (rise time 0-90%) 140 ms

Isolation configuration Ground isolation

Module Terminal Unit TU810. TU812. TU814. TU818. TU830. TU833. TU835. TU838 or TU850

MTU key code AE

Rated insulation voltage 50 V

Insulation test voltage 500 V (AC)