Emerson unidrive m200 - Low Frequency Thermal Protection Mode; Percentage Torque; Motor Protection Accumulator Power-Up Value; User over Current Trip Level

Parameter 04.025 Low Frequency Thermal Protection Mode
Short description Set to enable low frequency thermal protection mode
Mode Open‑loop
Minimum 0 Maximum 1
Default 0 Units
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW
See MotorThermalTimeConstant1 (04.015).
Parameter 04.026 Percentage Torque
Short description Displays the torque producing current as a percentage or motor rated current
Mode Open‑loop
Minimum −VM_USER_CURRENT Maximum VM_USER_CURRENT
Default Units %
Type 16 Bit Volatile Update Rate Background read
Display Format Standard Decimal Places 1
Coding RO, FI, VM, ND, NC, PT
PercentageTorque (04.026) gives the TorqueProducingCurrent (04.002) as a percentage of the rated torque producing current for the motor, but with
an additional adjustment above rated frequency so that it gives percentage torque. Below rated frequency, PercentageTorque (04.026)
= PercentageLoad (04.020). Above rated frequency, the PercentageTorque (04.026) is adjusted as follows:
PercentageTorque (04.026) = PercentageLoad (04.020) x MotorRatedFrequency (05.006) / OutputFrequency (05.001)
Parameter 04.036 Motor Protection Accumulator Power-up Value
Short description Defines the initial power-up value of the motor protection accumulator
Mode Open‑loop
Minimum 0 Maximum 2
Default 0 Units
Type 8 Bit User Save Update Rate Background write
Display Format Standard Decimal Places 0
Coding RW, TE
Value Text
0 Pr.dn
1 0
2 Real t
See MotorThermalTimeConstant1 (04.015).
Parameter 04.041 User Over Current Trip Level
Short description Defines the trip level for the user over-current trip as a percentage of the drive over current trip level.
Mode Open‑loop
Minimum 0 Maximum 100
Default 100 Units %
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW, RA
The User Over-Current Trip protection level in % of FullScaleCurrentKc (11.061) which is the full scale current in r.m.s. Amps. The User Over-Current
Trip may be used to limit the output current of the drive when supplying a motor with a lower current rating than the drive. If the value
of UserOverCurrentTripLevel (04.041) is set at 100%, the user over-current trip is disabled.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
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