6.2.5 X522 three-phase voltage sensing up to 690 V 3-ph. AC
Table 6-5 X522: Voltage sensing 690 V
Terminal Designation Technical data
1 Phase voltage U Directly connected to the line voltage sensing
Resistance to neutral point: ∼3500 kΩ
Insulation resistance, neutral point - ground
when the jumper is not inserted: >10 MΩ
2 Phase voltage V
3 Phase voltage W
Type: Screw terminal 5
NOTICE
Damage to the VSM10 as a result of an impermissible terminal assignment
The VSM10 has two terminal strips, X521 and X522, to sense the three-phase line supply
voltage. A terminal assignment which is not permissible results in the module being damaged.
● Use just one of the two terminal strips.
● Only connect voltages to terminal strip X521 up to a maximum 100 V (phase-to-phase) via
a transformer.
● Only connect voltages to terminal strip X522 up to a maximum 690 V (phase-to-phase)
directly.
NOTICE
Damage to the VSM10 through overcurrent with an incorrect connection sequence
Enabling the Line Module with an incorrect connection sequence results in overcurrent.
● Connect the line phases to the VSM10 in the same sequence as the one to the Line Module.
Note
Line voltage tap
If the configuration has a line filter, then the phase voltages for the VSM (X522) must be taken
from in front of the line filter. If the configuration does not have a line filter, then X522 must be
connected to the line side of the line reactor (voltages are taken from in front of the line reactor).
6.2.6 X524 Electronics power supply
Table 6-6 X524: Electronics power supply
Terminal Designation Technical data
+ Electronics power supply Voltage: 24 V DC (20.4 ... 28.8 V)
Current consumption: max. 0.2 A
Max. current via the jumper in the connec‐
tor: 20 A (15 A according to UL/CSA)
+ Electronics power supply
M Electronics ground
M Electronics ground
Type: Screw terminal 2
Voltage Sensing Module VSM10
6.2 Interface description
Supplementary component descriptions
84 Manual, 06/2019
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