Emerson unidrive m200 - Deceleration Rate Select Bit 2; Ramp Rate Units; S Ramp Percentage

Parameter 02.037 Deceleration Rate Select Bit 2
Short description Defines which deceleration rate is used if deceleration rate selector = 0
Mode Open‑loop
Minimum 0 Maximum 1
Default 0 Units
Type 1 Bit Volatile Update Rate 16ms
Display Format Standard Decimal Places 0
Coding RW, NC
See DecelerationRateSelector (02.020).
Parameter 02.039 Ramp Rate Units
Short description Defines the units used by the ramp system
Mode Open‑loop
Minimum 0 Maximum 2
Default 0 Units
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 0
Coding RW
The ramp rate parameters (AccelerationRate1 (02.011) - AccelerationRate8 (02.018), JogAccelerationRate (02.019), DecelerationRate1 (02.021) -
DecelerationRate8 (02.028) and JogDecelerationRate (02.029)) are specified in s / Rampratefrequency. Rampratefrequency is selected with Ramp
Rate Units (02.039) as defined in the table below.
Ramp Rate Units (02.039) Ramp rate frequency
0 Seconds per 100Hz
1 Seconds per Maximum Frequency
2 Seconds per 1000Hz
Maximum frequency is defined by MaximumSpeed (01.006) if SelectMotor2Parameters (11.045) = 0, or M2MaximumSpeed (21.001) if
SelectMotor2Parameters (11.045) = 1.
Parameter 02.040 S Ramp Percentage
Short description Defines the profile of the S ramp system as a percentage
Mode Open‑loop
Minimum 0.0 Maximum 50.0
Default 0.0 Units %
Type 16 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 1
Coding RW
If SRampSet-upMode (02.041) = 1 the percentage of the ramp to Maximum frequency that includes half the S ramp profile can be specified with
SRampPercentage (02.040) as shown in the diagram below. Maximum frequency is defined by MaximumSpeed (01.006) if SelectMotor2Parameters
(11.045) = 0, or M2MaximumSpeed (21.001) if SelectMotor2Parameters (11.045) = 1. It should be noted that the time to ramp to Maximum
frequency does not change as SRampPercentage (02.040) is changed, but the maximum acceleration rate in the centre of the profile increases.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
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