System Sizing Example - Allen-Bradley Kinetix 5700 User Manual

System Sizing Example

In this example, only 1 drive cluster defines the DC-bus group.
• Maximum motor power cable length: 1200 m (3937 ft). See
Drive to Motor Cable Lengths
motor power cable-length limitations.
– Total motor power cable length is 337 m (1106 ft)
• Maximum supported capacitance: 13,000 μF
– Total system capacitance is 4840 μF
– External bus capacitance is 4840-2050=2790 μF
• Maximum 24V DC control power current: 40 A
– Total 24V DC control power current is 20.3 A
– The Coil Current column shows how much of the 24V
current is consumed by the motor brake circuit.
All of the total system values are within the acceptable range.
Internal
DC-bus Group
Capacitance
Axis
Cat. No.
μF
2198-P208 2050
2198-S160-ERSx 1120
2198-S086-ERSx 560
A
2198-D020-ERSx 390
B
A
2198-D020-ERSx 390
B
A
2198-D006-ERSx 165
B
A
2198-D006-ERSx 165
B
Totals 4840
This example shows how a single Kinetix 5700 drive cluster meets the total bus
capacitance, power cable length, and 24V DC current limitations.
Figure 208 - Example DC-bus Group (single drive cluster)
2198-D006-ERSx Dual-axis Inverters
2198-D020-ERSx Dual-axis Inverters
2198-S086-ERSx Single-axis Inverter
2198-S160-ERSx Single-axis Inverter
2198-P208 DC-bus Power Supply
on page 158 for additional
Table 177 - System Sizing Example Data
Servo Motor
Cable Length
Servo Motor
m (ft)
Cat. No.
– –
50 (164) MPL-B980E
90 (295) MPL-B660F
20 (66) VPL-B1152F
15 (49) VPL-B1152F
9 (30) VPL-B1003C
90 (295) VPL-B1003C
9 (30) MPL-B310P
9 (30) MPL-B310P
15 (49) MPL-B310P
30 (98) MPL-B310P
337 (1106)
For more information on motor and motor-brake specifications, refer to the
Kinetix Rotary Motion Specifications Technical Data, publication
KNX-TD001.
Rockwell Automation Publication 2198-UM002G-EN-P - February 2019
Size Multi-axis Shared-bus Configurations
MOD MOD
NET NET
2 2
1
1
1 I/O
1 6
4
I/O
5 10
UFB
D+
D-
MF
-
MBRK
+
24V DC Control Power Current Calculations
Brake Current
Brake Option
@ 24V DC
Yes/No
A
– –
No –
Yes 2.1
No –
No –
Yes 0.50
Yes 0.50
Yes 0.50
No –
No –
No –
3.6
Appendix C
MOD MOD MOD MOD MOD
NET NET NET NET NET
2
2 2 2 2
1 1 1 1 1
I/O I/O-A I/O-B I/O-A I/O-B I/O-A I/O-B I/O-A I/O-B
1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1
5 10 5 10 5 10 5 10 5 10 5 10 5 10 5 10 5
UFB-A UFB-B UFB-A UFB-B
UFB UFB-A UFB-B UFB-A UFB-B
D+ D+ D+ D+ D+ D+ D+ D+ D+
D- D- D- D- D- D- D- D-
D-
MF-A MF-B MF-A MF-B MF-A MF-B MF-A MF-B
MF
-
MBRK
+
24V Current
Total Current
(non-brake motor)
A
A
DC
1.9 1.9
4.6 4.6
4.6 6.7
1.4 1.4
1.4 2.4
1.4 1.9
1.4 1.4
16.7 20.3
6
10
399