Product Introduction
The 07 AI 91 GJR5251600R0202 uses one module address (group number) in the word input range. Each of the 8 channels uses 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 several diagnostic functions. The diagnosis functions perform a self-calibration for all channels.

Technical Specifications
|
Manufacture |
ABB |
|
Model |
07AI91 |
| Part Number | GJR5251600R0202 |
|
Description |
Analog I/O module
|
|
Origin |
Germany |
|
Dimension |
16*16*8cm |
|
Weight |
0.48kg |
Product Details
The analog input module 07 AI 91 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, is performed with the DIL switches.
Displays and operating elements on the front panel:
①8 green LEDs for channel selection and diagnosis, 8 green LEDs for analog value display of one channel
②List of diagnosis information relating to the LEDs, when used for diagnosis display
③Red LED for error messages
④Test button
Electrical connection:
07AI91 GJR5251600R0202 is mounted on a DIN rail (15 mm high) or with 4 screws. The following figure shows the electrical connection of the input module.
Diagnosis and displays:
Module 07 AI 91 offers the following diagnosis functions:
• Detection of open circuit at connection for Pt100/ Pt1000 resistance thermometers or thermocouples
• Storing and making this information available when recalled (kind of error and error location)
• Recognition of an internal module error
• Recognition of a transmission error
If one of these errors occurs, the red Error LED will light up. The error message is then sent to the central unit or to the coupler.
FAQ
Q: About the product status and warranty period
A: Brand new and original with a one-year warranty.
Q: Delivery time
A: For stock products, we will send goods to you within 2-3 days after receiving the payment.
If we do not have them in stock, usually according to the manufacturer's production cycle
Q: Payment methods
A: 1. We only accpet 100% T/T before shipping;
2. For items with lead time, a 30% deposit in advance, 70% balance before shipping;
3. If you have an agent in China, please contact us for RMB transfer.












