Rexroth EcoDrive 03 DKC**.3-016 Instructions for Use 5-7
DOK-ECODR3-DKC16*UL***-IB01-EN-P
Motor connection
AP5398f1.FH7
X5
device-external device-internal
motor connection
A1
A2
A3
Fig. 5-14: Motor connections
Use Rexroth motor power cables to connect motor and controller.
Note: For technical data on connections and cross sections, see the
motor Project Planning Manual.
Cable length:
Maximum length equals 35 m:
• With two connections between controller and motor
(e.g., plugs at exit of control cabinet and at machine)
• Standard cables from Rexroth and
• Ambient temperatures of ≤ 40 °C per EN 60 204
• Switch frequency of 4 kHz
Maximum allowed capacitance per unit length at A1, A2, A3:
• with regard to ground: 0.5 nF/m
• cable to cable: 0.5 nF/m
Maximum allowed inductance per unit length an A1, A2, A3:
• 100 nH/m
To maintain EMC values, the motor cable length is limited with a
switching frequency of > 4 kHz. It is largely dependent on the application
and ambient conditions at the installation and machine.
A guide value is listed below:
Cycle frequency drive
controller
Max. length for
class B, EN 55011
Max. length for
class A, EN 55011
standard setting switching
frequency 4 kHz
35 m 35 m
parameter setting switching
frequency 8 kHz
35 m 35 m
Fig. 5-15: Guide value for maximum motor cable lengths
WARNING
No guarantee!
If third party cables are used, then the guarantee is
forfeited for the entire system.
⇒
Use Rexroth cables!
XE1
Connection
Motor:
Cable
Motor:
Protective conductor connection
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