ElmoMC ExtrIQ Digital Servo Drives-Panther - Manual (Page 31)

Panther Installation Guide Installation
MAN-PANIG (Ver. 1.302)
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3.7.2.1.a Three-Phase Direct-to-Mains Connection topology
Figure 6: Non-Isolated Three-Phase Connection Topology
Caution:
Do not connect VN- to PE. In a direct-to-mains connection, the VN- must not be
connected to the PE, as this will cause irreparable damage to the system.
Take care to note that in a direct-to-mains connection the Neutral point is not
the most negative voltage level. It is the mid-point level of the rectified DC bus.