Figure4-4 Connecting the overvoltage protection elements to a CU320-2 DP
4.11 Cable lengths
4.11.1 Maximum permissible cable lengths
Technical data
An overview of the maximum permissible lengths of all signal, supply and power cables is
provided in the following table.
Also observe the following notes:
• Keep all cables as short as possible to minimize the antenna eect.
• Carefully observe the permissible cable lengths and the maximum total cable lengths for the
various EMC categories.
Table 4-5 Maximum permissible cable lengths
Cables Unit Max. permissible cable lengths
24V DC power supply cables m 30
1)
24 V signal cable for digital input X21/X22 m 1000
Temperature sensor signal cable for X21/X22 KTY
input
Unshielded
Shielded
m
m
30
600
DRIVE-CLiQ signal cables MC500 m 100
DRIVE-CLiQ signal cables MC800PLUS m 75
DC link, including extensions m 10
Connecting cable between line lter and line reac‐
tor, shielded
m 10
2)
Connecting cable between line reactor and Line
Module, shielded
m 10
2)
Power cable between
motor and Motor Module with I
N
= 3 A...9A, shiel‐
ded
m 50
3)
Application planning
4.11Cable lengths
Booksize power units
54 Equipment Manual, 09/2023, A5E53307519B AA