Public:Janitza UMG96S Powermeter

1 Check cable wiring

Template:Notice bms For correct displaying the actual value you have to make sure that all cables are connected the right way. Just compare with the drawings. Template:Notice bms

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Wiring of the Janitza Measurement Tool UMG96S

The following connectors are bridged on the MBS measurement tool:

• K to S1.
• I to S2.

2 Programming the device

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Explanation of Display symbols and Keys

If you simultaneously press Keys 1 and 2 for around 1 second,programming mode opens Programming mode is denoted in the display by the text “PRG”. You can now use Key 2 to switch between the following programming menus:

• Current transformer
• Voltage transformer
• Parameter list

If you are in programming mode and have not pressed a key for approximately 60 seconds or simultaneously press Keys 1 and 2 for around 1 second, the UMG96S returns to display mode.

Set up instructions:

===Current transformer===
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Read the data from the current transducer and enter them here. E.g. 1kA / 5A In case you have two current transformers with a couple transformer (5A+5A/5A) add the values Transformer 1 is 500A / 5A Transformer 2 is 250A / 5A Total after the 5+5/5 you have to set up a 750A / 5A transformer

===Voltage transformer===
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Only used at 690V supplies. Set up the data written on the transformer

===PROFIBUS Address===
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Parameter 000, Value <Bus Address> Select Parameter 000 Press Key 1 to select a digit in the Parameter number (Line L1) and use Key 2 to change it. Press Key 1 to select a digit in the Profibus Address (Line L2) and use Key 2 to change it.

• Quit programming

Simultaneously press both keys for around 1 second.

3 Error Codes

Most common errors:

Error Code	Description
400	No PROFIBUS communication
500	No Input Voltage detected

4 Sporadic measuring problems

If you have a lot of harmonics on the mains of your line sometimes the Janitza shows wrong values. This happens on IR heaters on MDO and on Vacon or Siemens drives for main extruders.

To fix this issue set the Parameter 63 on the Janitza to 1 for 50Hz or to 2 for a 60Hz mains.

5 Confirm Power Supply Current and Power

Verify the measured current, power, Cosφ

There are possible sources of wrong measurements

• Current coil is connected wrong
• Current L1/2/3 does not correspond to the Voltage L1/2/3

If you have negative cosPhi displayed in PVSS and you wonder why on the Janitza display it only shows positive values note the indication "cap" or "ind".