Description of blocks
3.2 Driver module DRV_3WL
Library SENTRON 3WL / 3VL for SIMATIC PCS 7
66
Function Manual, 11/2008, A5E02316914A-01
Element (parameters)
Meaning
Display when 3WL is
connected following Y-link
CUR_DEM3PH
Mean current value over the three phases
No
CUR_EARTH_F
Current which flows to earth
No
THD_CUR94
THD of current
No
Measurements – voltage tab (MEASUREMENT_VOLT)
(1)
U_L1_N
(2)
U_L2_N
(3)
U_L3_N
(4)
VOLT_DEM_D
(5)
VOLT_DEM_S
(6)
VOLT_UNBAL
(7)
THD_VOLT
(8)
U_L3_L1
(9)
U_L2_L3
(10) U_L1_L2
Figure 3-4
Faceplate for measurements view, voltage tab
Element (parameters)
Meaning
Display when 3WL is
connected following Y-link
U_L1_L2
Voltage V
a-b
Yes
U_L2_L3
Voltage V
b-c
Yes
U_L3_L1
Voltage V
c-a
Yes
U_L1_N
Voltage V
a-n
Yes
U_L2_N
Voltage V
b-n
Yes
Содержание SENTRON 3WL
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