janitza UMG 801 Instruction manual

www.janitza.com
Modular Power Analyzer
UMG801
User manual and technical data
Doc. no.: 2.053.021.3.b Date: 07/2023
Janitza electronics GmbH
Vor dem Polstück 6
D-35633 Lahnau
Support tel. [phone]
Email: [email protected]
www.janitza.com

UMG801 www.janitza.com
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UMG 801
Modular multifunctional meter for
recording energy quantities
Doc. no.: 2.053.021.3.b
Date: 07/2023
The German version is the original edition of the documentation

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Subject to technical alterations.
The contents of our documentation have been compiled with great care and reflect the current state of the
information available to us. Nonetheless, we wish to point out that updates of this document are not always
possible at the same time as technical refinements are implemented in our products. Please see our website
under www.janitza.de for the current version.
Please see our website under www.janitza.com for the current version.

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TABLE OF CONTENTS
1. Information on the device and the user manual 12
1.1 Disclaimer 12
1.2 Copyright notice 12
1.3 Technical changes 12
1.4 About this user manual 12
1.5 Defective device/disposal 13
2. Safety 14
2.1 Display of warning notices and safety information 14
2.2 Hazard levels 14
2.3 Product safety 14
2.4 Dangers when handling the device 15
2.5 Electrically qualified personnel 16
2.6 Warranty in the event of damage 16
2.7 Safety information for handling current transformers 16
2.8 Safety information for handling measurement devices with residual current measurement 17
2.9 Handling batteries/accumulators 17
3. Product description 18
3.1 Device description 18
3.2 Incoming goods inspection 19
3.3 Intended use 19
3.4 Performance characteristics 20
3.5 EU/UKCA Declaration of Conformity 20
3.6 FCC Declaration of Conformity 20
3.7 Scope of delivery 21
3.8 Accessories 21
3.9 Measuring method 22
3.10 Transformers 22
3.11 Operating concept 22
3.12 Web server with device homepage 23
3.13 GridVis®network analysis software 23
3.14 Overview of the range of functions 23
3.14.1 Configuration on the device (via 6 buttons) 23
3.14.2 Communication 23
3.14.3 Measured values (with voltage component) 24
3.14.4 Measured values (with current component) 24

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4. Structure of the device 26
4.1 Front panel and display 26
4.2 Side views 28
4.3 Bottom view 28
4.4 Identification of the device (rating plate) 29
5. Mounting 30
5.1 Installation location 30
5.2 Bus connector 31
5.3 DIN rail mounting of the device 31
6. Grid systems 33
7. Installation 34
7.1 Nominal voltages 34
7.2 Circuit breaker 35
7.3 Supply voltage 35
7.4 Voltage measurement 36
7.4.1 Overvoltage 36
7.4.2 Mains frequency 36
7.4.3 Connection variants for voltage measurement 37
7.5 Current measurement 38
7.5.1 Connection variants for current measurement 39
7.5.2 Summation current measurement 40
7.5.3 Ammeter 40
7.6 Multifunction channels 40
7.7 Residual current measurement (RCM) 41
7.7.1 Current direction of the residual current transformers 42
7.7.2 Residual current transformer example 42
7.7.3 Important information about the residual current measurement inputs 42
7.7.4 Connection examples - Residual current measurement 43
7.7.5 Connection example - Residual current monitoring 44

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7.8 Residual current measurement - limit value calculation 45
7.8.1 Static limit value calculation 45
7.8.2 Dynamic limit value calculation 46
7.8.3 Stepwise limit value calculation 47
7.8.4 Example: Residual current limit value exceeded 48
7.8.5 Activating cable break detection (failure monitoring) RCM for the
multifunction channels. 49
7.9 Temperature measurement 50
8. Communication via the Ethernet interfaces 52
8.1 Functions of the Ethernet interfaces 52
8.2 "Switched mode" connection option 53
8.3 "Dedicated mode" connection option 53
8.4 Meaning of the Ethernet interface LEDs: 53
9. PC connections and other interfaces 54
9.1 PC connections 54
9.2 RS-485 interface (serial interface) 56
9.2.1 Shielding 57
9.2.2 Termination resistors/Termination 57
9.2.3 Bus structure (bus segment) 58
9.3 JanBus interface 58
9.4 Digital inputs 59
9.5 Digital outputs 60
9.6 Analog outputs 61
10. Operation and button functions 62
10.1 Controls 62
10.2 Function buttons 62
10.3 Measuring display 62
10.4 Menu 62
10.5 PIN (password) 63
10.6 Overview of menu displays 64

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11. Configuration 66
11.1 The Configuration window 66
11.2 Configuring Ethernet (TCP/IP) 66
11.2.1 Communication via TCP/IP 67
11.2.2 Communication via OPC UA 67
11.3 Configuring the fieldbus (RS-485 interface) 68
11.3.1 Communication settings 68
11.4 Configuring current transformers 69
11.5 Configuring voltage transformers 70
11.6 Temperature measurement configuration 71
11.6.1 Temperature sensor types 71
11.6.2 "Temperature offset" item 71
11.7 Configuring the display 72
11.7.1 Language 72
11.7.2 Standby (after) 72
11.7.3 Brightness 73
11.8 Configuring the system 73
11.8.1 PIN 73
11.8.2 Restart (reboot) 74
11.8.3 Time 74
11.8.4 Date 74
11.9 Reset 75
11.9.1 Standard factory settings 75
11.9.2 Reset configuration 75
11.9.3 Reset minimum, maximum and average values 76
11.9.4 Reset energy values 76
11.9.5 Reset historical data 77
11.10 Module identification / diagnostics 77
11.11 Events and transients 78
11.11.1 Events 78
11.11.2 Transients 78
11.11.3 Event and transient recording 79
11.11.4 Configuration of the waveform for events and transients 80
11.11.5 Half-wave RMS values for events 80
11.11.6 Update time for transients 81
11.11.7 Configuration in the GridVis software 81

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12. Digital inputs and outputs 82
12.1 4 digital inputs 82
12.2 4 digital outputs 84
13. Analog outputs 86
14. Commissioning 88
14.1 Supply voltage 88
14.2 Measured voltage 88
14.3 Measured current 89
14.4 Frequency measurement 89
14.5 Direction of rotary field 90
14.6 Fundamentals on the phasor diagram 90
14.7 Checking of voltage and current inputs by means of phasor diagram 91
14.8 Checking the phase assignment 91
14.9 Checking the power measurement 91
14.10 Checking measurement 92
14.11 Checking individual power 92
14.12 Checking summation power 92
14.13 Drag indicator function 93
14.13.1 Configuring the drag indicator synchronization 93
14.13.2 Drag indicator - measurement device display 95
14.13.3 Resetting the drag indicator 96
14.14 Average value - gridded and moving 96
14.14.1 Gridded average value 96
14.14.2 Moving average value 97
14.14.3 Gridded and moving average in the GridVis®software 97
15. Overview of measured value and meter displays 98
16. Connection example 112

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17. Dismounting 113
18. Device homepage 114
18.1 "Home" start page 114
18.1.1 Login 115
18.1.2 Change password 116
18.2 "Measured values" menu bar item 117
18.2.1 Details 117
18.2.2 Events and transients 118
18.3 "Settings" menu bar item 119
18.3.1 Firmware update 120
18.3.2 Whitelist (Modbus port 502) 121
18.4 "Information" menu bar item 122
18.4.1 Device information 122
18.4.2 Modbus address list 123
18.4.3 Imprint 123
19. Service and maintenance 124
19.1 Repair and calibration 124
19.2 Front panel foil and display 124
19.3 Service 124
19.4 Device adjustment 125
19.5 Firmware update via the device homepage 125
19.6 Firmware update via the GridVis®software 125
19.7 Clock/Battery 125
19.8 Battery replacement 125
20. Error messages 126
20.1 Overrange 126
20.2 Procedure in the event of a malfunction 127

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21. Technical specifications 128
21.1 Technical data 128
21.2 Performance characteristics of functions 134
21.3 Parameter and Modbus address list 135
21.4 Information on saving measured values and configuration data 135
22. Dimensional drawings 136
22.1 Basic device UMG801 136
22.2 Bus connector 137