Beckhoff EL3773 - Application Examples; Fig. 111 Power Measurement at a Machine

Commissioning
EL3773102 Version: 2.5
Index F008 Code word
Index (hex) Name Meaning Data type Flags Default
F008:0 Code word reserved UINT32 RW 0x00000000
(0
dec
)
Index F010 Module list
Index (hex) Name Meaning Data type Flags Default
F010:0 Module list Maximum subindex UINT8 RW > 7 <
F010:01 SubIndex 001 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:02 SubIndex 002 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:03 SubIndex 003 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:04 SubIndex 004 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:05 SubIndex 005 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:06 SubIndex 006 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
F010:07 SubIndex 007 Analog input profile (300) UINT32 RW 0x0000012C
(300
dec
)
6.7 Application examples
Power measurement at a machine
• The voltage is measured via connections L1, L2, L3 and N.
• The current is measured via three current transformers [}123] and the connections I
L1
, I
L2
, I
L3
and I
N
(star point of the current transformers).
WARNING
WARNING: Risk of electric shock!
Bring the Bus Terminals system into a safe, de-energized state before starting mounting,
disassembly or wiring of the Bus Terminals.
Attention
Attention! Risk of device damage!
Avoid confusing the current and voltage circuit during connection, since the direct connec-
tion of mains voltage to the terminal points for the current transformers (typical input resis-
tance 220mΩ) would destroy the power measurement terminal!