BPC CXPLUSR Operating Instructions Manual Download | Manualshive

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1.6 Wiring diagram

1.6.1 (CXPLUS..R – Contactor switching)

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Summary of Contents for CXPLUSR

Page 1: ... Page 4 2 1 Lockout time 75 secs 2 2 Measured Values in the Display Scroll through Menu What do the symbols mean Page 5 3 0 THE QUICK START MENU 100 TO SET CT AND VT RATIOS How to get into Setup Menu 100 Page 6 Setting the nominal system Voltage L L Un Setting the CT ratio Ct Setting the VT ratio Pt Selecting Automatic Self Commissioning Ai Selecting AUTO OFF HOLD for all the steps Page 7 Setting ...

Page 2: ... capacitor current b The ratio of the CT is such that full load current is about 75 of the CT ratio e g for a Max load of 500 amps select a CT ratio of 800 5 not 5000 5 This is because at the lower current ranges C T s are less accurate c Do not use a CT with too low a ratio for the measured load e g If the load is 750 Amps and you use a 500 5 CT the CT will then be saturated and will give inaccur...

Page 3: ...1 6 Wiring diagram 1 6 1 CXPLUS R Contactor switching Page 3 of 11 ...

Page 4: ...art menu 2 2 Measured Values in the Display The three larger digits at the top show system 50 hz power factor e g 0 91i lagging p f 0 91 0 98c leading p f 0 98 If you have a known lagging power inductive load then i should be displayed in the LCD If you see c and you are certain the load is lagging switch off and swap over Um1 and Um2 This is better than swapping over a load carrying CT which may ...

Page 5: ...e is above 5 check the current taken by the capacitors since high THDU can result in harmonic overload of the capacitor steps Harmonic Blocking reactors must then be fitted to limit harmonic overload current 3 5 7 9 11 13 15 17 19 harmonic voltages as of fundamental 0 i cos Top figure Fundamental 50 60hz Cosphi to 2 decimal places Bottom figure Fundamental Cosphi to three decimal places as require...

Page 6: ...lted to operate when the voltage is 10 from nominal Un setting C T Setting To set the CT ratio key and the first digit starts flashing Assume the CT ratio is 1000 5 which is 200 1 Always set the CT ratio as a multiplication factor to 1 so for the CT ratio 1000 5 we set Ct to 200 The same sequence with and is used for all the other settings Pt Voltage Transformer ratio setting This is only used whe...

Page 7: ...ontact can be used to start up the ventilation fan If you select AL for one of the exit relays the default switching temperature is 30ºC when this contact will close FOFF This step is permanently off Fixed off FON this step is permanently on Fixed on Default setting is AUTO 4 0 MANUAL SWITCHING 4 1 Sometimes there is no load on the system when the relay is commissioned In order to test everything ...

Page 8: ...ltage outside tolerance set in menu 204 thi The second ambient temp set in menu 514 has been exceeded Sequential switching off of steps to bring ambient temp down will commence I Lo Measured current below 15mA Check for open circuit or short circuited CT or insufficient load OPH The limit set for operating hours between servicing has been reached Call the service engr I Hi Measured current too hig...

Page 9: ...ct time delay of THDU alarm 506 NO Freeze exits if no CT current 300 CONTROL 507 YES YES Service alarm operates when max operating hours or switchings on any step is reached 301 60 value of kvar for step switching 508 80 000 Set No of contactor operations for Alarm 302 1 00 Target PF 1 509 9 000 Set No of operating Hours for Alarm 303 0 95i Target PF 2 510 NO Temperature sensor is set to monitor t...

Page 10: ... above 5 amps Check the CT ratio selected Change if necessary Display shows PFC ALARM Continuous over compensation or continuous under compensation Check the capacitors and contactors Contactor could be welded in Check that steps are not in the FON setting PFC Out in menu 100 Is the kvar supplied sufficient for the reactive demand If not under compensation will be reported Display Shows Leading Co...

Page 11: ...he exit relays as ventilation fan contact Data Output BSTO software by TTL on back of relay Operating Temperature 20 70ºC Storage 40 85ºC Humidity 0 95 Dew droplets not permitted Over Voltage Category II Pollution Degree 3 DIN VDE 0110 Part 1 IEC 60664 1 Standards Complied with DIN VDE 0110 part 1 IEC 60664 1 1992 VDE 0411 part 1 DIN EN 61010 1 IEC 61010 1 2001 VDE 0843 Part 20 DIN EN 61326 IEC 61...

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