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6

Instructional Booklet 

IB013003EN

Effective June 2023

Instructions for installation, operation,  

and maintenance of Magnum MR2  

(integral racking) 

EATON

 www.eaton.com

Setting the breaker type

m

 CAUTION

SETTING THE WRONG BREAKER TYPE CAN CAUSE THE BREAKER TO NOT 

FULLY RACK IN.  BREAKER TYPE IS CELL SPECIFIC.  IF A CONTROL BOARD 

IS MOVED TO A NEW CELL ONE MUST VERIFY BREAKER TYPE.

m

 CAUTION

THE BREAKER TYPE WILL BE SET BY ASSEMBLY MANUFACTURER BASED 

ON APPLICATION.

All Magnum breaker types are included in the firmware .  The breaker 

type is set from the factory on the General 01 setting .

Table 1. 

Breaker types

01

General

02

General (enhanced protection)

03

6 pole/8 pole double standard frames

04

6 pole/8 pole double standard frames (enhanced protection)

The breaker type is set by turning the breaker type dial on the 

control board (see Figure 17) .  The “enhanced” options (types 02 and 

04) provide more sensitive overcurrent protection for the motor .

Setting the Modbus address

The Modbus address of a controller board is set using the pendant .  

The available Modbus addresses are 01 to 99 for one RS485 

network . 
To set the Modbus address, follow the steps below .

1 .  Connect pendant to the controller to be programmed .
2 .  Hold down the “Intermediate” button and within three seconds 

press and hold the “Connect” button until the two-digit LED 

display begins to flash “##”, at the same time the “Connect” 

LED will begin to flash .

3 .  Now the “Test” and “Disconnect” buttons can be used to scroll 

up and down (01 to 99) until the desired address number is 

reached . While scrolling, the “Connect” LED will continue to 

flash to let the user know that the address is not set .

4 .  Once the desired address number is reached, press the 

“Connect” button to connect to the Modbus address displayed .

5 .  Press “Disconnect” to return to operation mode .

6. 

At this time the address can be verified using the controller 

diagnostic display described above .

The Modbus address can be modified after being set using the 

same sequence .

ote: 

N

See Instruction Booklet IB022022EN for information on the Modbus 

interface to Magnum controllers .

Figure 17. MR2 controller. 

Breaker type 

selector

Position  

limit switch 

connection

Pendant 

control

I/O control  

connection

Safety 

permissive 

connection

120 Vac input  

control 

power

120 Vdc  

output to 

MR2 motor

Summary of Contents for Magnum MR2

Page 1: ...ndication 5 Setting the breaker type 6 Setting the Modbus address 6 Control options 7 Option 1 7 Option 2 7 Option 3 7 Sequence of operations 7 Diagnostics troubleshooting 8 E1 Motor overcurrent 8 E2 Open motor circuit 8 E3 Motor timed out 8 E4 Magnum breaker position unknown 8 E5 Open permissive 8 E6 Communication error 8 E8 Position switch error 8 Controller diagnostic display 9 Controller mount...

Page 2: ...NNEL WITH THIS TYPE OF PRESENTATION THIS WILL HELP ASSURE THAT PERSONNEL ARE ALERT TO THESE TYPES OF MESSAGES IN ADDITION THESE MESSAGES ARE ALL UPPERCASE AND BOLDFACE All possible contingencies which may arise during installation operation or maintenance and all details and variations of this equipment are not encompassed by these instructions If further information is desired by the purchaser re...

Page 3: ...trol the system by means of a pendant Modbus master such as the Eaton Power Distribution Monitoring and Control system or separately wired I O buttons Controller can be mounted to the left side preferred or right side of the cassette If placed in other areas of the switchgear extension wires can be added with the existing terminal blocks The eight MR2 tertiary wires connect the controller to the M...

Page 4: ...e are three methods to restrict racking a Magnum circuit breaker Option 1 lockout tagout This option prevents both electrical and manual operation Push the padlock slider forward towards the breaker aligning two holes on the left side and insert a padlock see Figure 7 The MR2 will be disabled via the permissive circuit and manual racking is blocked as well The label on the levering door will show ...

Page 5: ...acking Racking indication While electrical or manual racking there exists three discrete colored positions which are disconnect green test yellow and connect red see positions A B and C in Figure 12 At these positions the breaker can be closed when the racking door is fully lowered Figure 12 Discrete colored positions If racking is stopped electrically or manually in between disconnect test or tes...

Page 6: ...available Modbus addresses are 01 to 99 for one RS485 network To set the Modbus address follow the steps below 1 Connect pendant to the controller to be programmed 2 Hold down the Intermediate button and within three seconds press and hold the Connect button until the two digit LED display begins to flash at the same time the Connect LED will begin to flash 3 Now the Test and Disconnect buttons ca...

Page 7: ...ch of the control options Pendant I O and Modbus The Enable button must be held to operate the pendant 1 Insert the breaker into the breaker cell a The breaker is now in the disconnect position b The solid green disconnect LED will be illuminated c To proceed further and rack the breaker to the connected position the breaker must be open If the breaker is closed you will see an E5 code Refer to th...

Page 8: ...communications E3 Motor timed out Condition when motor continues to run in excess of the normal required time to reach the desired position This error state condition can be caused from a malfunction of the MR2 Operator should shut off power to the MR2 controller by tripping the circuit breaker or fuse protecting the controller and manually rack out the Magnum breaker Once the Magnum breaker is re...

Page 9: ...RI RO OC AD 1 2 3 4 5 6 7 8 1 Product group 2 Gear type will always be 02 for Magnum 3 Controller firmware version 4 Pendant firmware version 5 Rack in count 6 Rack out count 7 Overcurrent count 8 Modbus address 01 to 99 Controller mounting The controller can be mounted to the left side or right side of the cassette If placed in other areas of the switchgear extension wires can be added with the e...

Page 10: ...ube is not present please contact Eaton Technical Support and order with style shown in Table 3 Magnalube can be added to the leading edges and surfaces on all primary disconnects that make contact with the cassette stabs Table 3 Greases used on Magnum PXR and PD SB Grease type Desription Magnalube G Eaton standards 53701AI Color Green Manufactured by Saunders Enterprises inc 11 51 44th Road Long ...

Page 11: ...11 Instructional Booklet IB013003EN Effective June 2023 Instructions for installation operation and maintenance of Magnum MR2 integral racking EATON www eaton com Notes ...

Page 12: ...een the parties This literature is not intended to and does not enlarge or add to any such contract The sole source governing the rights and remedies of any purchaser of this equipment is the contract between the purchaser and Eaton NO WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OR WARRANTIES ARISING FROM THE COURSE OF DEALING OR USAG...

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