Motor Power And Motor Holding Brake Connection (X9) - Kollmorgen SERVOSTAR 300 Instruction Manual

S300 Instructions Manual | 9 Electrical Installation

9.10 Motor power and motor holding brake connection (X9)

Together with the motor supply cable and motor winding, the power output of the servo amp-
lifier forms an oscillating circuit. Characteristics such as cable capacity, cable length, motor
inductance, frequency and voltage rise speed (see Technical Data, ) (➜ # 26) determine the
maximum voltage in the system.
The dynamic voltage rise can lead to a reduction in the motor's operating life and, on unsuit-
able motors, to flash overs in the motor winding.
Serious injury could result when a suspended load is not properly blocked.
Wiring with cable length ≤ 25 m
Wiring with cable length >25 m
With long motor cables leakage currents endanger the output stage of the servo amplifier.
For cable lengths above 25m up to max. 50m, the motor choke 3YL or 3YLN (see accessor-
ies manual) must be wired into the motor cable, close to the amplifier.
64 Kollmorgen | kdn.kollmorgen.com | May 2020
Only install motors with insulation class F (acc. to IEC 60085) or above
Only install cables that meet the requirements on (➜ # 29) and (➜ # 52).
No functional safety!
An additional mechanical brake is required for functional safety, which must be safely
operated.