Installation and Connection
3
3-36 | CFW-11
NOTE!
The ground-fault protection (F074) is intended for IGBT protection and may not be activated when
inverter output is shorted to ground, when fed by IT networks.
External insulation monitoring devices should be used for system fault monitoring.
(a) Frame sizes B and C (b) Frame size D
Figure 3.26 - (a) and (b) - Ground connections - location and procedure for adapting to IT or corner-ground networks -
frame sizes B, C and D
PRT3 board
(a) Location of board
(b) Initial position
(J1 jumper of PRT3 board
connected to
(XE1))
(c) Final position (IT)
(J1 jumper of the board
connected to NC)
Figure 3.27 - (a) to (c) - Ground connections - location and procedure for adapting to IT or corner-ground networks -
frame size E
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