INVT GD350-004G-2-UL, Руководство по эксплуатации

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Goodrive350-UL Series VFD Optional peripheral accessories
-352-
• The preceding table describes external accessories. You need to specify the ones you choose
when purchasing accessories.
D.8 Brake system
D.8.1 Brake component selection
When a VFD driving a high-inertia load decelerates or needs to decelerate abruptly, the motor runs in
the power generation state and transmits the load-carrying energy to the DC circuit of the VFD,
causing the bus voltage of the VFD to rise. If the bus voltage exceeds a specific value, the VFD
reports an overvoltage fault. To prevent this from happening, you need to configure brake
components.
 The design, installation, commissioning, and operation of the device must be
performed by trained and qualified professionals.
 Follow all the "Warning" instructions during the operation. Otherwise, major
physical injuries or property loss may be caused.
 Only qualified electricians are allowed to perform the wiring. Otherwise,
damage to the VFD or brake components may be caused.
 Read the brake resistor or unit instructions carefully before connecting them
to the VFD.
 Connect brake resistors only to the terminals PB and (+), and brake units
only to the terminals (+) and (-). Do not connect them to other terminals.
Otherwise, damage to the brake circuit and VFD and fire may be caused.

Connect the brake components to the VFD according to the wiring diagram. If
the wiring is not properly performed, damage to the VFD or other devices
may be caused.
Goodrive350-UL series VFDs below 220V (≤15kW), 460V (G-type≤30kW) need internal brake units
and the VFDs 220V (≥18.5kW), 460V (G-type≥37kW) need external brake units. Select the resistance
and power of brake resistors according to actual utilization.
The VFDs of 220V (≤15kW), 460V (G-type≤30kW) are configured with brake units but brake units are
optional for the VFDs of 220V (≥18.5kW), 460V (G-type≥37kW). Select brake resistors according to
actual operation.
Model
Model of
brake
unit
Brake
resistor at
100% of
braking
torque (Ω)
Consumed power of brake
resistor
Min.
allowable
braking
resistance
(Ω)
10%
braking
50%
braking
80%
braking
GD350-0R7G-2-UL
Embedded
brake unit
192 0.11 0.56 0.9 93
GD350-1R5G-2-UL 96 0.23 1.1 1.8 44
GD350-2R2G-2-UL 65 0.33 1.7 2.64 44
GD350-004G-2-UL 36 0.6 3 4.8 33
GD350-5R5G-2-UL 26 0.75 4.13 6.6 25
GD350-7R5G-2-UL 19 1.13 5.63 9 13