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Emerson Control Techniques Epsilon Eb Series User Manual

Emerson Control Techniques Epsilon Eb Series
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143
Tuning Procedures
Inertia Measurement Procedure:
Note
The test profile will need to be run a number of times in order to get a good sample of data.
1. Enable the drives and run the test profiles.
2. Note the Torque Command Limited value during acceleration and deceleration.
3. Use the appropriate formula below to calculate the inertia.
For horizontal loads or counterbalanced vertical loads use the following formula:
Where:
IR = Inertia Ratio
R = ramp in ms/kRPM
Ta = (unsigned) percent continuous torque required during acceleration ramping (0 - 300)
Td = (unsigned) percent continuous torque required during deceleration ramping (0 - 300)
Vm = motor constant value from Table 18 below
For un-counter balanced vertical loads use the following formula:
Where:
IR = Inertia Ratio
R = ramp in ms/kRPM
Vm = motor constant value from the table below
Tau = (unsigned) percent continuous torque required during acceleration ramping while
moving up (against the constant force)
Tdu = (unsigned) percent continuous torque required during deceleration ramping while
moving up (against the constant force)
Tad = (unsigned) percent continuous torque required during acceleration ramping while
moving down (aided by the constant force)
Tdd = (unsigned) percent continuous torque required during deceleration ramping while
moving down (aided by the constant force)
Ramp Units Conversion
If you are using an external position controller to generate motion you may need to convert
the ramp units as desired below.
1
2000
Td)) (Ta Vm (R
IR -
+·
=
1
4000
Tdd)) Tad Tud (Tau Vm (R
IR -
+++·
=
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Emerson Control Techniques Epsilon Eb Series Specifications

General IconGeneral
BrandEmerson
ModelControl Techniques Epsilon Eb Series
CategoryDC Drives
LanguageEnglish

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