X521 Three-Phase Line Supply Voltage Sensing Up To 100 V (Phase-To-Phase) - Siemens Sinamics G130 Operating Instructions Manual

4.3.4

X521 three-phase line supply voltage sensing up to 100 V (phase-to-phase)

Table 4- 4
Max. connectable cross-section: 1.5 mm²
NOTICE
Destruction of the VSM10 as a result of a terminal assignment which is not permissible
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
destroyed.
• Use just one of the two terminal strips.
• Only connect voltages to terminal strip X521 up to a maximum 100 V (phase-to-phase)
• Only connect voltages to terminal strip X522 up to a maximum 690 V (phase-to-phase)
Note
Connection sequence
The phases must be connected to the VSM10 with the same sequence as that of the Power
Module.
Voltage Sensing Module 10 (VSM10)
Operating Instructions, 11/2017, A5E02142235A
Terminal block X521
Terminal
1
2
3
via a transformer.
directly.
Designation Technical specifications
Phase voltage U Connection to the voltage sensing for medium-
voltage networks via a safe electrically isolated
Phase voltage V
transformer
Phase voltage W
Resistance to neutral point: each ∼500 kΩ
Insulation resistance, neutral point - ground when
the jumper is not inserted: >10 MΩ
Electrical installation
4.3 Interface description
21