Nidec H300 - Vm_Supply_Loss_Level; Vm_Switching_Frequency; Vm_Torque_Current; Vm_Torque_Current_Unipolar

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204 HVAC Drive H300
Issue Number: 3
VM_SUPPLY_LOSS_LEVEL Range applied to the supply loss threshold
Units V
Range of [MIN] 0 to 1150
Range of [MAX] 0 to 1150
Definition
VM_SUPPLY_LOSS_LEVEL[MAX] = VM_DC_VOLTAGE_SET[MAX]
VM_SUPPLY_LOSS_LEVEL[MIN] is drive voltage rating dependent. See Table 11-4
VM_SWITCHING_FREQUENCY Range applied to the maximum switching frequency parameters
Units User units
Range of [MIN] 0
Range of [MAX] 0 to 6
Definition
VM_SWITCHING_FREQUENCY[MAX] = Power stage dependent
VM_SWITCHING_FREQUENCY[MIN] = 0 for motor control modes, or 1 for Regen mode (subject to the maximum)
VM_TORQUE_CURRENT
Range applied to torque and torque producing current parameters (where this is used in
Regen mode it refers to the active current)
Units %
Range of [MIN] -1000.0 to 0.0
Range of [MAX] 0.0 to 1000.0
Definition
VM_TORQUE_CURRENT[MIN] = -VM_TORQUE_CURRENT[MAX]
Select Motor 2 Parameters (11.045) VM_TORQUE_CURRENT [MAX]
0 VM_MOTOR1_CURRENT_LIMIT[MAX]
1 VM_MOTOR2_CURRENT_LIMIT[MAX]
VM_TORQUE_CURRENT_UNIPOLAR Unipolar version of VM_TORQUE_CURRENT
Units %
Range of [MIN] 0.0
Range of [MAX] 0.0 to 1000.0
Definition
VM_TORQUE_CURRENT_UNIPOLAR[MAX] = VM_TORQUE_CURRENT[MAX]
VM_TORQUE_CURRENT_UNIPOLAR[MIN] =0.0
User Current Maximum Scaling (04.024) defines the variable maximum/minimums VM_USER_CURRENT and
VM_USER_CURRENT_HIGH_RES which are applied to Percentage Load (04.020), Torque Reference (04.008) and
Torque Offset (04.009). This is useful when routing these parameters to an analog output as it allows the full scale
output value to be defined by the user. This maximum is subject to a limit of MOTOR1_CURRENT_LIMIT or
MOTOR2_CURRENT_LIMIT depending on which motor map is currently active.
The maximum value (VM_TORQUE_CURRENT_UNIPOLAR [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.