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Instruction Leaflet 

IL157002EN

Effective July 2019

Eaton BLR-ACX 

Quick commissioning guide 

  

EATON

 www.eaton.com

Overview

BLR-ACX is factory preset to the default values shown in 

Table 1

 .

Customer to program and verify the values set to meet the specific 

conditions of each installation .

Step 3

The next step is to verify the measured values . 
In the main screen press the 

 (  right / Enter) key to enter the 

Measurement menu . The following parameters are displayed .
To enable measurement values, the CT ratio has to be set .
Otherwise only voltage dependent measurement values are 

displayed accurately . The shaded fields shown in 

Figure 3

 are  

hidden and will only appear if the CT ratio is set in the menu .

Step 4

The final step in commissioning is to verify the working of the 

capacitor bank . This is done by activating the controller in manual 

control mode and cycling through all the available steps . 

Note that 

the steps will switch on only after the factory set capacitor 

stage discharge time has elapsed

 .

After each manual operation of the stage, the PF should change in 

the right direction . (For example 0 .70 i >> 0 .78 i >> 0 .85 i…) .

If the PF changes in the right direction, the capacitor bank  

has been correctly commissioned

 . If not, please refer to the 

troubleshooting section .

To switch the controller in manual control mode, press  

the 

 (down) key to step through the “INFO” mode to  

“MANUAL” mode. Press and hold the 

 (  right /Enter)  

key for approximately 3 seconds until “1” displays indicating  

the stage number 1 is available for control.
Note that in manual mode, the controller freezes the stages  

in their existing state (ON, OFF or HOLD). Therefore it is 

important to ensure that at the end of this step 4, the  

controller is returned back to the automatic control mode  

by pressing the

 

 

(left / esc) key to return to the main screen 

that displays the existing PF.

After activating all available steps, one should make note of the 

displayed PF value as that reading should be greater than or equal to 

the target PF desired . If the displayed PF with all steps energized is 

less than the target PF, then the selected capacitor bank is not sized 

adequately to raise the PF to the desired value . The customer should 

either upgrade the capacity of the capacitor bank or the target PF 

value should be decreased to prevent “PF alarms” .

Summary of Contents for BLR-ACX

Page 1: ...EN Effective July 2019 Contents Description Page Screen legends 2 Operation 2 Commissioning 2 Overview 3 Menu structure 5 Troubleshooting 6 Retrofit installations with BLR ACX controller 7 Eaton BLR A...

Page 2: ...would be appropriate for most installations A c at the end indicates capacitive power factor and suggests reactive power export and may not be appropriate Refer to the troubleshooting section for res...

Page 3: ...PF should change in the right direction For example 0 70 i 0 78 i 0 85 i If the PF changes in the right direction the capacitor bank has been correctly commissioned If not please refer to the troubles...

Page 4: ...Step 14 ON OFF Basic Programming Mode 100 level menu Un nominal voltage ULL CT CT ratio PT PT or VT ratio Ai automatic initializing PFC power factor control on off CP1 target power factor St switchin...

Page 5: ...2 at KW export N 305 Switching time delay 60 s 306 Switching time delay for fine control 10 s 307 Fine control active N for units with equal stage sizes Y for units with multiple stage sizes 308 Stop...

Page 6: ...it is within its operating parameters The controller will show I LO alarm if there is no measured current or the magnitude sensed is less than 15 mA If the current is greater than 6 A the controller w...

Page 7: ...ase Front instrument case PC ABS UL94 VO Rear metal Protection class Front IP50 IP54 by using a gasket Rear IP20 Retrofit installations with BLR ACX controller Please retain and follow all instruction...

Page 8: ...019 Eaton All Rights Reserved Printed in USA Publication No IL157002EN Z23003 July 2019 Eaton is a registered trademark All other trademarks are property of their respective owners Eaton BLR ACX Quick...

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