The setting of Unidrive SP you need to change is parameter 2.04 which is ramp mode selection. At default it is Std = standard ramp and it will longer deceleration time if dc-link voltage is rising up to trip level.
Set pr.2.04 to Fast = fast ramp and you will decelarate according set ramp rates...
The reason for oscillation is slip compensation of open loop drive. Your motor slip is 60rpm and syncronous speed at 50Hz is 1500rpm. When you set motor nominal speed to 1500, then slip compensation is off.
Normally slip compensation for open loop drive works with the load/current. What higher...
Few facts about PM motors aka brushless ac motors:
It has Permanent Magnet rotor with very strong magnets.
You can not run PM motor with vector drive, even if you have feedback encoder on the motor.
You need encoder/feedback device that can give absolut position of rotor for commutation, when...
There are two things you should know,when selecting braking resistor.The minimum ohmic value for the drive and the power rating for the braking resistor.
Minimum ohmic value can be found from manufacturers manuals.
(What lower is resistance,that higher is current).
Power rating can be...
About EN954-1.
Control Techniques UNIDRIVE SP got this feature as standard.
(NO options needed).It is caled SECURE DISABLE-function and it meets the requirements of EN954-1 : category 1, 2, and 3 for machine safety.
