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166 Unidrive M Regen Design Guide
Issue Number: 4
Table 9-6 Menu 4 Regen parameter descriptions
* For size 9 and above the default is 150.0 %
Current Magnitude (04.001) is the instantaneous Regen drive output current scaled so that it represents the r.m.s. phase current in Amps under
steady state conditions.
Active Current (04.002) is the instantaneous level of active current scaled so that it represents the r.m.s. level of active current under steady state
conditions. The Active Current (04.002) is positive when power is flowing from the supply and negative when power is flowing into the supply.
The Final Active Current Reference (04.004) is the active current reference from the DC bus voltage controller and power feed-forward system or
user defined value with the current limits applied.
The Power From Supply Current Limit (04.005) limits the active current when power is being taken from the supply. The Power To Supply Current
Limit (04.006) limits the active current when power is being fed back into the supply. If the Symmetrical Current Limit (04.007) is below the
Power From Supply Current Limit (04.005) then it is used instead of the Power From Supply Current Limit (04.005). If the Symmetrical Current Limit
(04.007) is below the Power To Supply Current Limit (04.006) then it is used instead of the Power To Supply Current Limit (04.006). It should be noted
that if the current limits become active it is no longer possible for the DC bus voltage to be controlled.
The maximum possible current limit (VM_MOTOR1_CURRENT_LIMIT [MAX]) varies between drive sizes with default parameters loaded. For some
drive sizes the default value may be reduced below the value given by the parameter range limiting.
Parameter Range() Default ()Type
04.001 Current Magnitude 0.000 to VM_DRIVE_CURRENT_UNIPOLAR A RO Num ND NC PT FI
04.002 Active Current VM_DRIVE_CURRENT A
RO Num ND NC PT FI
04.004 Final Active Current Reference VM_TORQUE_CURRENT %
RO Num ND NC PT FI
04.005 Power From Supply Current Limit 0.0 to VM_MOTOR1_CURRENT_LIMIT % 175.0 % * RW Num RA US
04.006 Power To Supply Current Limit 0.0 to VM_MOTOR1_CURRENT_LIMIT % 175.0 % * RW Num RA US
04.007 Symmetrical Current Limit 0.0 to VM_MOTOR1_CURRENT_LIMIT % 175.0 % * RW Num RA US
04.008 Reactive Current Reference VM_REGEN_REACTIVE% 0.0 % RW Num US
04.009 Active Current Reference VM_USER_CURRENT % 0.0 % RW Num US
04.010 Active Current Reference Selector Off (0) or On (1) Off (0) RW Bit US
04.013 Current Controller Kp Gain 0 to 30000 90 RW Num US
04.014 Current Controller Ki Gain 0 to 30000 2000 RW Num US
04.015 Inductor Thermal Time Constant 1.0 to 3000.0 s 89.0 s RW Num US
04.017 Reactive Current VM_DRIVE_CURRENT A
RO Num ND NC PT FI
04.018 Final Current Limit VM_TORQUE_CURRENT %
RO Num ND NC PT
04.019 Inductor Protection Accumulator 0.0 to 100.0 %
RO Num ND NC PT PS
04.020 Percentage Load VM_USER_CURRENT %
RO Num ND NC PT FI
04.021 Current Feedback Filter Disable Off (0) or On (1) Off (0) RW Bit US
04.024 User Current Maximum Scaling 0.0 to VM_TORQUE_CURRENT_UNIPOLAR % 175.0 % * RW Num RA US
04.036
Inductor Protection Accumulator Power-up
Value
Power down (0), Zero (1), Real time (2) Power down (0) RW Txt US
04.040 Final Reactive Current Reference ±200.0 %
RO Num ND NC PT FI
RW Read / Write RO Read only Num Number parameter Bit Bit parameter Txt Text string Bin Binary parameter FI Filtered
ND No default value NC Not copied PT Protected parameter RA Rating dependent US User save PS Power-down save DE Destination
04.001 Current Magnitude
RO Num ND NC PT FI
0.000 to VM_DRIVE_CURRENT_UNIPOLAR A
04.002 Active Current
RO Num ND NC PT FI
VM_DRIVE_CURRENT A
04.004 Final Active Current Reference
RO Num ND NC PT FI
VM_TORQUE_CURRENT %
04.005 Power From Supply Current Limit
RW Num RA US
0.0 to VM_MOTOR1_CURRENT_LIMIT %
175.0 %
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