Goodrive350-19 series VFD Optional peripheral accessories
-526-
Goodrive350-19
PB
External
braking
resistor
Installation of braking units
All the 660V VFD models need external braking units.
(+) and (-) are the terminals for connecting braking units.
The connection cables between the (+) and (-) terminals of a VFD and those
of a brake unit must be shorter than 5 m, and the connection cables between
the BR1 and BR2 terminals of a brake unit and the terminals of a brake
resistor must be shorter than 10 m.
The following figure shows the connection of one VFD to a dynamic braking unit.
+ +
+ +
+
+
+
External braking resistor RB
(+)
DC+
(-)
DC-
BR1 BR2
PE
(-)
(+)
+
+ + + + +
+
Goodrive350-19
DBU braking
unit
