Control Cabinet Installation; Dc-Supply - KEB COMBIVERT F4-S Serie Manual De Instrucciones

General

1.4 Control Cabinet Installation

GB

1.5 DC-supply

GB - 8
Direction of the cooling
fins
KEB
COMBIVERT/
COMBIDRIVE
Cool air inlet
The DC input current of the inverter is basicly determined by the
used motor. The data can be taken from the motor name plate.
230V Class:
√3 x rated motor voltage x rated motor current x motor cos ϕ
400V Class:
√3 x rated motor voltage x rated motor current x motor cos ϕ
The DC input peak current is determined by the operating range.
– if you accelerate on the hardware current limit, the short-time limit
current of the inverter must be set in the formula above (instead
rated motor current).
– if the motor in normal operation is never stressed with rated torque,
it can be calculated with the real motor current.
– a good value agrees with approx. 1,5 times of the rated motor
current (from 90kW 1,25-times)
F4
Minimum distances
Warm air
outlet
310V
540V
150
F4
30
100