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4

Reset on Factory Setting:

   In case  of  any of parameter is not in

it`s proper range or it has been disturbed any how, the controller could
be reset on default factory settings. 

Manual capacitor Switching: 

`UP` and `DN` keys are also provided

an additional function to manually switch on and off the stages.
This is not a permanent function, the apfc controller will follow the normal
automatic working rule after releasing the key. 

Capacitor Recommendation: 

It is strongly recommended that the

capacitor should be in ascending order from stage output 1 to stage output 
15 for perfect result.
Example- 1, 2, 4, 8 and so on.

Dead Band Explanation: 

Dead Band

 

is provided for, to prevent

frequently switch on/off the stages on small variation of power
factor. It could be understand by the figure as given below.

Power factor is set to 1.00 and dead Band is set to 2. The controller will start to switch on the stages when power
factor is below than  0.98 (1.00-2=0.98)  in lag side  and  start to switch off the stages when power factor is below 
than 0.98 in lead side. In between the controller will hold the stages that would be `no action zone`.

  

 

SET DEAD BAND=2

. . . . .

. . . . .

              

 

0.95

0.96

0.97

0.98

0.99

1.00

0.99

0.98

0.97

0.96

0.95

LEAD

LAG

SET PF=1.00

No action in this zone

Содержание DSP-56

Страница 1: ...m the installation Before connecting the controller in comming voltage should be checked for in range voltage rating of controller Care should be taken that low and high voltage than the device rating would damage the controller Operation Manual DSP 56 model PENTACON ELECTRO CONTROL INDIA ...

Страница 2: ...g diagram It is strongly recommended the phase given to the relay should be same phase on which ct is installed If the polarity of ct is reversed the display on screen is r ct interchange the ct connection L1 L2 L3 N LOAD CT 5A 2 Use separate neutral for APFC relay do t connect with contactors or indicators neutral Stage 1 to 8 L1 L2 L3 N N P CT 5A S2 S1 C 1 2 3 4 5 6 7 8 ...

Страница 3: ...tep Delay Step delay is the time taken between two continuous on or off the steps Setting Range 1 to 20 0 5 second to 10 seconds Default factory setting 6 2 seconds On Delay On delay is the time between as H L led becomes green and first step switched on It is fold time of step delay Setting Range 1 to 20 Default factory setting 2 example On delay step delay x 2 4 seconds factory default Off Delay...

Страница 4: ...g order from stage output 1 to stage output 15 for perfect result Example 1 2 4 8 and so on Dead Band Explanation Dead Band is provided for to prevent frequently switch on off the stages on small variation of power factor It could be understand by the figure as given below Power factor is set to 1 00 and dead Band is set to 2 The controller will start to switch on the stages when power factor is b...

Страница 5: ...t on screen is indication for low no current Low current means current is less than set value of ct primary in Lod In case of if current is above than set value of ct primary check the entire wiring line of ct and their joints if any and ct itself Explanation of Short Form of Display Power Factor VOLTS AMP CT RATIO Step Delay On Delay Off Delay Set Load Setting selection Reverse CT Low Current Don...

Страница 6: ...refreshed by dbn now release the keys the last saved dead band displays on screen and blinks now press the UP or DN key to increase or decrease the dead band to saved value release the key and press SELECT ENTER screen will refreshed by don The value is saved Range 1 to 5 Default set value 2 Settings of Variables For setting the variables press the key SELECT ENTER SEt displays on screen Release t...

Страница 7: ...ss select enter Value saved press select enter Value saved press select enter Value saved Factory default value saved CT primary Step Delay On Delay Off Delay Current Sensing UP DN UP DN UP DN UP DN UP UP DN UP DN UP DN UP DN UP DN UP DN Facory Use press select enter press select enter Value saved No Action ...

Страница 8: ... 3 Burden 5VA Harmonics Effect Performance un efected Switching Time Delay Adjustable 0 5 second to 10 seconds Switching Contacts 1 Amps 250V AC max Switching Sequence Last in Last out Special Switching Display Power Factor 0 01 Lag 1 00 0 01 Lead Other Display VOLT AMP Power Factor default Targeted Power Factor 0 80 Lag to 0 80 Lead Nominal Temperature 10 degree to 50 degree centigrade Connection...

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