Jump to main content

L3-25: Load Inertia Ratio

No.

(Hex.)

Name

Description

Default

(Range)

L3-25

(046F)

Expert

Load Inertia Ratio

Sets the ratio between motor inertia and machine inertia.

1.0

(0.1 - 1000.0)

Set one of these parameters to enable L3-20:

  • L2-29 = 1 [Kinetic Energy Backup Method = Single Drive KEB Ride-Thru 2]

  • L3-04 = 2 [Stall Prevention during Decel = Intelligent (Ignore Decel Ramp)]

  • L3-11 = 1 [Overvoltage Suppression Select = Enabled]

  • H1-xx = 7A or 7B [MFDI Function Select = KEB Ride-Thru 2 Activate (N.O./N.C.)]

Note:

  • If you set this value incorrectly when L2-29 = 1, H1-xx = 7A or 7B, or L3-11 = 1, it can cause large current ripples and ov [Overvoltage], Uv1 [DC Bus Undervoltage], or oC [Overcurrent] faults.

  • KEB Tuning will automatically set this value.