Siemens 611 Commissioning motors connected in parallel, Optimize the axis controller settings

Commissioning

9.2 Procedure

11. Optimize the axis controller settings

Note

Automatic controller settings for torque motors do not provide adequate results, as the measuring system mounting plays a significant role in the closed-loop control characteristics.

∙Current and speed controllers (see Commissioning Manual 840D/611D, chapter titled "Drive optimization")

∙Position controllers (see Commissioning Manual 840D/611D, chapter titled "Drive optimization")

9.2.3Commissioning motors connected in parallel

Commissioning procedure when running multiple torque motors in parallel on one power module (SINUMERIK/SIMODRIVE example)

If multiple torque motors are run in parallel on one power module, the conditions laid down in the PHB 1FW6 section titled "Running multiple motors in parallel" must be met.

Torque motors connected in parallel are commissioned in a similar way to a single torque motor.

First, only one torque motor (motor 1) is connected to the power module, and is commissioned as a single motor (1FW6 ...). The commutation angle offset is determined automatically or by measurement and a note is made of this value.

Instead of motor 1, motor 2 is then connected and operated as a single motor. Here too, the commutation angle offset is determined automatically or by measurement and a note is made of this value.

If the difference between the commutation angle offset of motor 1 and motor 2 is less than 5 electrical degrees, both motors can be connected in parallel to the power module and commissioned as a parallel connection of 2 torque motors (e.g. 2 x 1FW6 ...).

Note

In order to set the commutation, it is essential that the rotor is first located in the 0° position. In the delivery state, this is the default setting (see "Setpoint mounting position" on the installation/dimension drawings).

If motor components are purchased separately, the relevant "setpoint mounting position" must be set in each case. If the specific installation conditions make this impossible or extremely difficult to achieve, other 0° rotor positions can also be used to set the commutation. The 0° rotor position repeats itself every 360°/number of pole pairs. The number of pole pairs p can be found on the relevant data sheets.

182	1FW6 Built-in torque motors
	Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7