Emerson unidrive m200 - Output Voltage;Output Power; Motor Rpm; D.C. Link Voltage; Motor Rated Frequency

Parameter 05.002 Output Voltage
Short description Displays the r.m.s. line to line voltage at the a.c. terminals of the drive
Mode Open‑loop
Minimum −VM_AC_VOLTAGE Maximum VM_AC_VOLTAGE
Default Units V
Type 16 Bit Volatile Update Rate 16ms
Display Format Standard Decimal Places 0
Coding RO, FI, VM, ND, NC, PT
The OutputVoltage (05.002) is the r.m.s line to line voltage at the a.c. terminals of the drive.
Parameter 05.003 Output Power
Short description Displays the power flowing via the a.c. terminals of the drive
Mode Open‑loop
Minimum −VM_POWER Maximum VM_POWER
Default Units kW
Type 32 Bit Volatile Update Rate 16ms
Display Format Standard Decimal Places 2
Coding RO, FI, VM, ND, NC, PT
The OutputPower (05.003) is the power flowing via the a.c. terminals of the drive. The power is derived as the dot product of the output voltage and current
vectors, and so this is correct even if the motor parameters are incorrect and the motor model does not align the reference frame with the flux axis of the
motor. A positive value of power indicates power flowing from the drive to the motor.
The maximum power is VM_POWER[MAX] = √3 x VM_AC_VOLTAGE[MAX] x FullScaleCurrentKc (11.061) / 1000
Parameter 05.004 Motor Rpm
Short description Displays the Final Demand Reference in units of rpm
Mode Open‑loop
Minimum -33000 Maximum 33000
Default Units rpm
Type 32 Bit Volatile Update Rate Background write
Display Format Standard Decimal Places 0
Coding RO, FI, ND, NC, PT
MotorRpm (05.004) = 60 x Frequency / Pole pairs
where
Pole pairs = the numeric value of NumberOfMotorPoles (i.e. 3 for a 6 pole motor)
The frequency used to derive the MotorRpm (05.004) is the FinalDemandReference (03.001). The maximum and minimum values allow for a 10% over-
shoot of the speed.
Parameter 05.005 D.c. Link Voltage
Short description Displays the voltage across the d.c. link of the drive
Mode Open‑loop
Minimum −VM_DC_VOLTAGE Maximum VM_DC_VOLTAGE
Default Units V
Type 16 Bit Volatile Update Rate 16ms
Display Format Standard Decimal Places 0
Coding RO, FI, VM, ND, NC, PT
D.c.LinkVoltage (05.005) gives the voltage across the d.c. link of the drive.
Parameter 05.006 Motor Rated Frequency
Short description Set to the rated frequency of the motor
Mode Open‑loop
Minimum 0.00 Maximum 550.00
Default See exceptions below Units Hz
Type 32 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 2
Coding RW
Region Default Value
50Hz 50.00
60Hz 60.00
MotorRatedFrequency (05.006) and MotorRatedVoltage (05.009) define the frequency to voltage characteristic applied to the motor. See Open-
loopVoltageMode (05.014) for more details. MotorRatedFrequency (05.006), MotorRatedSpeed (05.008) and NumberOfMotorPoles (05.011) are used to
calculate the rated slip of the motor for slip compensation.
Ratedslip (Hz) = MotorRatedFrequency (05.006) - (Pole pairs x MotorRatedSpeed (05.008) / 60)
where
Pole pairs = the numeric value of NumberOfMotorPoles (05.011) (i.e. 3 for a 6 pole motor)
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Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10