Beckhoff AX8000 Series Operating Instructions Manual page 44

Technical description
Practical example
7.5.3.1
Total standstill current I
24 V current consumption
DC
Result
44 ───
The configured 480 V
Num-
ber
4
4
4
1
The total standstill current I
0
practical example and corresponds to:
• 4 x 1.95 A for the AM8031 + 4 x 4.75 A for the AM8051 = 26.8 A
The total standstill current I
factor. In the case of a machine tool this is relatively high, e.g. 0.9,
because all axes can drive into the material at the same time. In the
case of a handling system the factor is more likely to be 0.7.
This then corresponds to:
• 26.8 A x 0.7 = 18.76 A
The AX8620 power supply module was selected on the basis of the
calculations.
The 24 V
in the practical example and corresponds to:
• 0.12 A for the AX8620 + 4 x 0.57 A for the AX8206 + 4 x 0.33 A
for the holding brake with the AM8031 + 4 x 0.54 A for the hold-
ing brake with the AM8051 = 5.88 A
The maximum single cable length for the AM8051-0G21 is 25 m and
is thus ≤ 25 m
The total cable length of all servomotors is 131 m and is thus ≤
300 m
• No AX2090-ND80-xxxx mains choke required
The 24 VDC current consumption of all components is 5.88 ADC
and is thus ≤ 40 ADC
• 24 V
The maximum DC link capacitance is always related to the connec-
tion to a common AX8620 power supply module with 945 µF and is
thus ≤ 6000 µF
AX8000
drive system consists of:
DC
Component
Servomotors from the AM8031-0D21 series with a cable
length of 4 m, 10 m, 15 m and 22 m
Servomotors from the AM8051-0G21 series with a cable
length of 16 m, 18 m, 21 m and 25 m
Dual-axis modules from the AX8206 series
Power supply modules from the AX8620 series
relates to all servomotors listed in the
0
is now multiplied by the simultaneity
0
current consumption relates to all the components listed
DC
power supply unit with a rated current of at least 6 A
DC
DC
Version: 1.1