User`s manual

DS2100 User's Manual SECTION 5: DS2100 FUNCTIONAL OVERVIEW
PAGE 5-14
0x60F6/10 F32 V/A DS2100_oai current_loop_alpha_observer_p_gain
0x60F6/11 F32 V/A/Tsamp DS2100_obp current_loop_beta_observer_i_gain
0x60F6/12 F32 V/A DS2100_obi current_loop_beta_observer_p_gain
Table 5.7 List of motor (Current Loop) parameters
5.4.4 Feedback and Commutation Parameters
Different sources for the feedback of motor position to the controller are available. The following tables lists these
options. In the case where no encoder is used (i.e. comfbk = 1), then the encoder parameters may not need to be set.
The resolver reference amplitude is in units of 32768/2V, Typically the default value for the resolver’s reference
amplitude is used. The number of resolver poles is required regardless of the feedback source. The values for
encoder set-up are listed in the encoder section, and are summarised in the table below: -
Index Type Units Motor Database
Name
Name
0x2200/4 U16 none DS2100_rref resolver_amplitude
0x2171/1 U08 none DS2100_comfbk commutation_feedback
0x2171/2 S16 none DS2100_comofs commutation_offset
0x2171/3 U16 none Pr resolver_poles
0x2e20/1 U08 none DS2100_encsup encoder_supply
0x2e20/2 U08 none DS2100_enctyp encoder_type
0x2e20/3 U32 none encinc encoder_number_of_increments
0x2e20/6 U08 none ssibit encoder_ssi_number_bits
0x2e20/7 U08 none DS2100_ssicod encoder_ssi_coding
0x2e20/8 U32 none DS2100_ssimsk encoder_ssi_data_bit_mask
Table 5.8 List of motor (Feedback and Commutation) parameters
5.4.5 Bus Parameters
The default value for the bus over-voltage limit is 800, with defaults of 760 and 780 for the regen. off and on limit
respectively.
Index Type Units Motor Database
Name
Name
0x24a0/5 F32 V Vmax bus_over_voltage_limit
0x24a4/1 F32 V Vrgnoff regen_off_voltage
0x24a4/2 F32 V Vrgnon regen_on_voltage
Table 5.9 List of motor (Bus) parameters
5.4.6 Motor Thermal Parameters
The coefficients that characterise the NTC of the motor, must be set for each motor. The temperature and span at
which the current is foldback as a function of motor temperature, can also be set, along with the maximum
temperature allowed for the motor. Thermal foldback is only possible where a NTC is present in the motor.
The motor thermal limiting is enabled by default, so the user should not modify the current limit mask setting.
Index Type Units Motor Database
Name
Name
0x2805/1 F32 none DS2100_ntca0 motor_sensor_coefficient_a0