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GD350A series high-performance multifunction VFD
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Appendix D Optional peripheral accessories
D.1 What this chapter contains
This chapter describes how to select optional accessories of the VFD.
D.2 Wiring of peripheral accessories
The following figure shows the external wiring of the VFD.
Power supply
Breaker
Input filter
Input reactor
Earth
DC reactor
LCD keypad
P1
+
+
-
PB
Brake
resistor
Brake unit
PC
RS485
–
RS232
converter
Output filter
Output reactor
Motor
Earth
+
Upper PC
software
485+
485-
Standard
Note:
The VFD models of 037G/045P and lower are equipped with built-in braking units, and those of
045G/055P–055G/075P can be configured with optional built-in braking units.
The VFD models of 018G–110G/132P are equipped with built-in DC reactors.
P1 terminals are equipped only for the VFD models of 132G/160P and higher, which enable the
VFD models to be directly connected to external DC reactors.
The braking units are INVT DBU series standard braking units. For details, see the DBU operation
manual.