Lenze i700 Manual - Manual (Page 10)

About this documentation
Terms and abbreviations used
1
l
10 EDS700ACBA EN 4.0
Term Description
C
L
Loading capacity for the 24 V supply
f Frequency or frequency range
f
Ch
Switching frequency
I
aMx
Max. output current
I
aNdc
Rated value of continuous output current of the power supply module
I
aNx
Rated value of continuous output current, frequency−dependent
I
BRd
Continuous current RMS − important for the dimensioning of the cables
I
BRmax
Peak current
I
max_3
Maximum short−time current after cycle time
I
max_60
Maximum short−time current after cycle time
I
red_12
Reduced short−time current after cycle time (recovery phase)
I
red_120
Reduced short−time current after cycle time (recovery phase)
I
r4
Rated value of continuous output current at 4 kHz
I
r24
Rated current for the 24 V supply
I
max24
Maximum current for the 24 V supply
P
24
Rated power for the 24 V supply
P
Bd
Continuous braking power
P
loss
Power loss
R
Bmin
Nominal value of minimum brake resistance
P
BRmax
Peak braking power
t
fp
Maximum running time without initial load and compliance with the
recovery time
t
on
Running time
t
Z
Cycle time, periodic load change with running time and recovery time
U
Lrated
Rated mains voltage, also voltage range
U
DC
Rated DC bus voltage, also voltage range
DC−bus operation
Term Description
DC bus The energy store in the controller or supply module from which the
controller modulates the AC voltage for the motor. The DC buses of
several controllers can be networked.
DC bus Electrical connection of the DC connections of several controllers via cable
or busbar.
DC−voltage level DC−voltage level in the DC bus
Power supply module Module with AC mains connection used to supply the DC bus of a drive
system with DC voltage.
Regenerative power supply module Power supply module with additional power regeneration into the AC
mains
Multi−axis controllers (Multi Drive) Controllers for connection to a DC bus. Multi−axis controllers have no AC
mains connection and no brake chopper.
Single−axis controllers (Single Drive) Controllers for connection to an AC mains or a DC bus. Single−axis
controllers have an integrated brake chopper.
Brake chopper Switching element in the controller used to dissipate excess energy in the
DC bus via a brake resistor.
Brake resistor High−performance resistor used to convert excess energy in the DC−bus
into heat.
Braking operation Motor operation in generator mode with energy feedback from the motor
to the controller.