janitza UMG 500 A Operating Instructions Manual Download Page 17

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Page 17

Universal Measuring Device UMG 500A

Connection example

(4-wire)

switch closed: clear work
switch open:

measure

serial interface
RS 485

analogue output

floating
threshold
contacts

interface
converter
RS 485 -
RS 232

switch closed: remote
switch open:

local

consumer

auxiliary voltage
see nameplate

3l
3k
2l
2k
1l
1k

50 mA .. 5.5
A

Summary of Contents for UMG 500 A

Page 1: ...Universal Measuring Device UMG 500 A Janitza electronic GmbH Vor dem Polst ck 1 D 35633 Lahnau Tel 0 64 41 9642 0 Fax 0 64 41 9642 30 Doc No 1 010 006 1...

Page 2: ...9 Real power 9 Mean real power 9 Measuring period 9 Remaining time 9 Reactive power 10 Real work 10 Reactive work 10 Frequency 10 Power factor 10 Harmonic wave content of voltage 10 Analogue output 1...

Page 3: ...analogue output threshold contacts serial interface designed for networking Application 1 Peak values of harmonics are stored without date and time Construction features Universal Measuring Device UM...

Page 4: ...1 to 3 or 4 to 6 If the reading falls below the min value programmed for the threshold function or rises above the max value the appropriate relay is activated The threshold values min and max can be...

Page 5: ...onnect current path for L1 4 1 1 Switch on auxiliary voltage measured voltage and measured current 4 1 2 Using the operating keys of the UMG 500A cause the current in L1 to be displayed and compare it...

Page 6: ...99 kV 0 5500 A 0 5500 A 0 9999 kW opt 0 00 99 99 MW 0 9999 kVA opt 0 00 99 99 MVA 0 9999 kvar 0 000 9999 kvarh 255 0 000 9999 kWh 255 48 00 62 00Hz 100 0 0 25 5 L2 L3 Sum 0 9999 kW Peak values L1 0 9...

Page 7: ...by trained staff after a period of about 5 years The batteries have a design life of approx 8 to 10 years Batteries 2 off Lithium batteries voltage 3 V diameter 12 5 mm 2 5 mm thick Panasonic order c...

Page 8: ...measurement function Erasing the accumulated work Restart of averaging power and current Summe sum Selection key sum With this key the sums of the measurement functions real power apparent power reac...

Page 9: ...y service therealpowerisdisplayedwiththreedigitsas Asanoption theinstrumentcandisplaytherealpower in MW to two decimal places P U I Apparent power This function shows the apparent power of the measure...

Page 10: ...ly after erasure If there is a power failure the time measurement will be interrupted Frequency This function displays the frequency of the voltage in L1 The unit of measurement is indicated by the LE...

Page 11: ...al to or bigger than 500 if the maximum pulse frequency of 0 25 Hz should not be exceeded 0 20mA Analogue output Allocation In order to allocate a particular measuring function to the output the desir...

Page 12: ...bed under Peak values but using key 5A instead of the function key for the corresponding measurement value In combination with the keys and the settings can be changed There is no automatic changeover...

Page 13: ...at care must be taken to ensure that the parallel port of the PC 25 pin socket is not used because otherwise damage to the device can occur Alternatively a connecting cable 25 pin socket socket can be...

Page 14: ...ng stations using the master slave principle i e the measuring stations never transmit independently only after being called up by the host system The protocol consists essentially of control characte...

Page 15: ...digit kW kVA cos phi kWh 1 5 digit kvar kvarh 1 5 5 digit Harmonic wave content 10 10 digit Environment Operating temperature 10 C 45 C Storage temperature 20 C 60 C Humidity class F to DIN 40040 15...

Page 16: ...ion switch closed clear work switch open measure serial interface RS 485 analogue output floating threshold contacts auxiliary voltage see nameplate consumer measured voltage see nameplate interface c...

Page 17: ...4 wire switch closed clear work switch open measure serial interface RS 485 analogue output floating threshold contacts interface converter RS 485 RS 232 switch closed remote switch open local consume...

Page 18: ...osed clear work switch open measure serial interface RS 485 analogue output floating threshold contacts interface converter RS 485 RS 232 switch closed remote switch open local auxiliary voltage see n...

Page 19: ...ive ground terminal and is suited for applications in overvoltage category III and contamination level 2 EN 55011 06 1992 RFI product standard Group 1 Class B residential and commercial premises EN 50...