Check the network compatibility restrictions above 2000 m (6562 ft), see section
Installation site altitude (page 160).
Above 2000 m (6562 ft), the maximum permitted potential difference between
the adjacent relays of the BREL-01 relay extension module (option +L511) decreases.
At 4000 m (13123 ft), it is 30 V.
￭
Switching frequency derating
The output current is calculated by multiplying the current given in the rating table
by the derating factor given in the table below.
Note: If you change the minimum switching frequency with parameter 97.02
Minimum switching frequency, derate according to the table below. Changing
parameter 97.01 Switching frequency reference does not require derating.
Derating factor of the min. switch frequencyFrame
12 kHz8 kHz4 kHz2 kHz
0.480.6511R0
0.50.6711R1
0.50.6711R2
0.480.6511R3
0.550.7311R4
0.550.7111R5
0.50.660.830.97R6
0.50.70.880.98R7
Not applicable0.60.810.96R8
3AXD10000561047.xls
￭
Output frequency derating
Output frequency derating applies for ratings up to ACS/ACH/ACQ580-01-106A-4
(R5). Inverter output current is limited by the following factor k below 5 Hz absolute
inverter output frequency f_abs.
Fuses (IEC)
gG as well as uR or aR fuses for protection against short-circuit in the input power
cable or drive are listed below. Either fuse type can be used for frames R0…R8 if
it operates rapidly enough. The operating time depends on the supply network
impedance and the cross-sectional area and length of the supply cable.
Note 1: See also Implementing thermal overload and short-circuit
protection (page 76).
Technical data 143
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