INVT GD300-075G-4 - Page 287

Goodrive300 Series VFD Peripherial options and parts
282
+
PB
External brake resistor
Goodrive300
Installation of braking units:
• The VFDs of 380V (≥37kW) need external braking units.
• The VFDs of 660V need external braking units.
• (+), (-) are the wiring terminals of the braking units.
• The wiring length between the (+),(-) terminals of the VFD and the (+),(-)
terminals of the braking units should be no more than 5m,and the distributing
length among BR1 and BR2 and the braking resistor terminals should be no
more than 10m.
Signal installation is as below:
External brake resistor
Goodrive300
DBU
brake
unit
(+)
DC+
(-)
DC-
PB (+)
(+)
PE
(-)