4
Table of Contents
WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
6
Mounting ..................................................................................................... 47
6.1
Mounting Sequence ................................................................................. 47
6.2
Inserting and Removing Devices ............................................................ 48
6.2.1
Inserting the I/O Module .................................................................... 48
6.2.2
Removing the I/O Module .................................................................. 49
7
Connect Devices ......................................................................................... 50
7.1
Connecting a Conductor to the CAGE CLAMP
®
................................... 50
7.2
Voltage Measurement ............................................................................. 51
7.3
Current Measurement .............................................................................. 52
7.3.1
Current Measurement on a Motor ...................................................... 52
7.3.2
Current Transformers ......................................................................... 53
7.3.2.1
Accuracy ........................................................................................ 53
7.3.2.2
Types of Current ............................................................................ 53
7.3.2.3
Overcurrent Limiting Factor FS .................................................... 53
7.3.2.4
Protection against Shock Hazard Voltages .................................... 54
7.3.3
Additional Measuring Instruments in the Current Path ...................... 55
7.4
Power Measurement ................................................................................ 56
7.4.1
Power Measurement on a Machine .................................................... 56
7.4.2
56
8
Commissioning ........................................................................................... 57
8.1
Configuration with WAGO-I/O-
CHECK
............................................... 58
8.1.1
"Application" Tab ............................................................................... 61
8.1.2
"Phase L1”, “Phase L2”, “Phase L3” Tabs ........................................ 62
8.1.3
"I/O Module" Tab ............................................................................... 64
8.1.4
"Energy" Tab ...................................................................................... 65
8.1.5
"Factory Settings" Tab ....................................................................... 66
8.1.6
Register Assignment ........................................................................... 67
8.2
Displaying the Measured Values via WAGO-I/O-
CHECK
.................... 70
9
Diagnostics .................................................................................................. 77
10
Appendix ..................................................................................................... 78
10.1
CSV Data File “Snapshot” ...................................................................... 78
10.2
CSV Data File “Measurement Recording” ............................................. 80
11
Use in Hazardous Environments .............................................................. 81
11.1
Marking Configuration Examples ........................................................... 82
11.1.1
Marking for Europe According to ATEX and IEC-Ex ...................... 82
11.1.2
Marking for America According to NEC 500 .................................... 87
11.2
Installation Regulations ........................................................................... 88
11.2.1
Special Conditions for Safe Use (ATEX Certificate TÜV 07 ATEX
554086 X) ........................................................................................... 89
11.2.2
Special Conditions for Safe Use (ATEX Certificate TÜV 12 ATEX
106032 X) ........................................................................................... 90
11.2.3
Special Conditions for Safe Use (IEC-Ex Certificate TUN 09.0001 X)91
11.2.4
Special Conditions for Safe Use (IEC-Ex Certificate IECEx TUN
12.0039 X) .......................................................................................... 92
11.2.5
Special Conditions for Safe Use According to ANSI/ISA 12.12.01 .. 93
List of Figures ...................................................................................................... 94