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Goodrive350-19 series VFD for crane
D.9.2 Braking resistor cable selection
Braking resistor cables should be shielded cables.
D.9.3 Braking resistor installation
All resistors need to be installed in places with good cooling conditions.
The materials near the braking resistor or braking unit must be flame resistant.
since the surface temperature of the resistor is high and air flowing from the
resistor is of hundreds of degrees Celsius. Prevent any materials from coming
into contact with the resistor.
Braking resistor installation
The 380V 110kW and lower VFD models need only external braking resistors.
PB and (+) are the terminals for connecting braking resistors.
Braking unit installation
All 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
braking unit must be shorter than 5m, and the connection cables between the
BR1 and BR2 terminals of a braking unit and the two ends of a braking resistor
must be shorter than 10m.
The following figure shows the connection of one VFD to a dynamic braking unit.
VFD
VFD
(+)
(-)
DC+
DC-
+
+ + + + +
+
+ +
External braking resistor
-506-
Optional peripheral accessories
External
braking
resistor
PB
DBU braking
unit
BR1 BR2
(+)
(-)
PE
+ +
+
+
+
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