ABB 07KR91 GJR5250000R0303

The basic unit 07 KR 91 works either as · bus master in the decentralised automation system Advant Controller 31, or as · slave (remote processor) in the decentralised automation system Advant Controller 31, or as · stand-alone basic unit.

The module is provided in two versions with supply voltages of 24 V DC and 115/ 230 V AC:

 

Manufacture	ABB
Model	07KR91
Part Number	GJR5250000R0303
Description	Basic Units
Origin	Germany
Dimension	15*15*12cm
Weight	1.5kg

 

(1) Fastening of the device on the DIN rail

(2) Fastening of the device by screws

(3) Faston earthing terminal 6.3 mm

(4) Supply voltage connection

(5) 24 V output voltage for the input supply

(6) Battery compartment

(7) 20 digital inputs in three groups

(8) Assignment of the identifiers for the inputs

(9) 20 green LEDs for the digital inputs

(10) 12 digital relay outputs in 3 groups

(11) Assignment of the identifiers for the outputs

(12) 12 yellow LEDs for the digital outputs

(13) Serial interface COM1 (programming, MMC)

(14) Connection for CS31-system bus

(15) Cover of the interface for the connection of communication modules (may only be removed for connecting communication modules)

(16) Switch for RUN/STOP operation: The RUN/STOP switch is used to start or abort the processing of the user program

(17) LEDs for CS31 system bus

       BA   LED green   Bus active

       BE   LED red       Bus error

       RE   LED red       Remote unit error

       SE   LED red       Serial unit error

(18) LEDs for RUN and error classes

       RUN   LED green   User programm

       FK1    LED red       Fatal error

       FK2    LED red       Serious error

       FK3    LED red       Light error

(19) Other LEDs

       Supply   LED green.  Supply voltage available

       The battery LED red is not effective

 

07 KR 91 R303: (same functions as R202)

The device has a 115/230 V AC power supply voltage. It provides a 24 V output voltage for the supply of its own digital inputs.

 

07 KR 91 R353: (same functions as R252)

The device has a 24 V DC power supply voltage. It is provided with an additional interface for connecting communication modules (e.g. 07 KP 90).

 

Both versions have the following main features:

1. Main features

Both module versions feature:

· 20 digital inputs

· 12 digital relay outputs

· 1 counting input for counting frequencies up to 10 kHz

· 1 CS31 system bus interface for system expansion.

· Serial interface COM1

  -is set as a programming interface

  -can be set as an ASCII interface for connecting peripheral devices (e.g. MMC devices)

· Real-time clock

· LEDs for displaying the digital input and output signals, as well as operating conditions and error messages

· Detachable screw-type terminal blocks

· Fastening by screws or by snapping the device onto a DIN rail

· Lithium battery 07 LE 90 can be put into the battery compartment ito

  -store and back up the user program in the RAM

  -store and back-up data,  which is additionally contained in the RAM, e.g. the status of flags

  -back-up the time and date (real-time clock)

· RUN/STOP switch for starting and aborting the program execution

· Extensive diagnosis functions

  -Self-diagnosis of the basic unit

  -Diagnosis of the CS31 system bus and the connected modules

 

2. Project planning/start-up

The following has to be observed for project planning and start-up:

· Programming is performed using AC31 programming software, which can be run on commercially available IBM-compatible PCs (see documentation for the programming system 907 PC 331)

· The processor processes the user program contained in the RAM. It is loaded into the RAM via the serial interface COM1 and can also be changed there. An additional save command is used to save the program in the Flash EPROM.

· Online program modification. The two existing RAMs allow a quick modification of the user program to be performed without interrupting the operation (see programming system 907 PC 331).

· Changeover between the application modes

  -Stand-alone basic unit

  -Bus master basic unit and

  -Slave basic unit

The basic unit is set to Stand-alone upon delivery. Changing the application mode is carried out in the following three steps:

1. Change the system constant KW 00,00 in the PLC, see chapter A7.3 (Appendix), System constants.

2. Save the user program in the Flash EPROM.

3. Activate new application mode by:

  -calling up the menu item of Enable PLC mode in the ABB programming and test system, or

  -performing a warm start or

  -performing a cold start.

· Setting the cycle time, see chapter A1 (Appendix), Processing times

· Addressing when remote modules are connected ,see chapter A2 (Appendix), Addressing