ABB 07AI91 GJR5251600R0202 Analog I/O Unit
Description:
07AI91 GJR5251600R0202 is designed as part of ABB Advant Controller 31 control system. It is used as a remote module at the CS31 system bus. It has 8 analog input channels with the following features:
The channels can be configured in pairs for the connection of the following temperature or voltage
sensors:
• ± 10 V / ± 5 V / ± 500 mV / ± 50 mV
• 4...20 mA (with external 250 Ω resistor )
• Pt100 / Pt1000 with linearization
• Thermocouples types J, K and S with
linearization
• Only electrically isolated sensors may be used The range of ± 5 V can also be used for measuring 0..20 mA with an additional external 250 Ω resistor.
• The configuration of the input channels as well as the setting of the module address are performed with the DIL switches.
The 07 AI 91 uses one module address (group number) in the word input range. Each of the 8 channels use 16 bits.
The unit is powered with 24 V DC. The CS31 system bus connection is electrically isolated from the rest of the unit.
The module offers a number of diagnosis functions (see chapter "Diagnosis and displays"). The diagnosis functions perform a self-calibration for all channels.