VL.LIMITN

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General Information
Type	NV Parameter
Description	Sets the velocity lower limit; active in opmodes 1 (velocity) and 2 (position) only.
Units	Depends on UNIT.VROTARY (pg 1) or UNIT.VLINEAR (pg 1) Rotary: rpm, rps, deg/s, custom units/s, rad/s Linear: counts/s, mm/s, µm/s, custom units/s
Range	Range may be limited by ECCN 3A225 Limitations for Induction Motors (➜ p. 1) Rotary: -15,000.000 to 0.000 rpm -250.000 to 0.000 rps -90,000.000 to 0.000 deg/s -1,250.000 to 0.000 custom units/s -1570.796 to 0.000 rad/s Linear: -1,073,741,824,000.000 to 0.000 counts/s -250.000MOTOR.PITCH on pg. 1 to 0.000 mm/s -250,000.000MOTOR.PITCH on pg. 1 to 0.000 µm/sec -1,250.000 to 0.000 custom units/s
Default Value	Rotary: -3,000.000 rpm -50.000 rps -18,000.002 deg/s -250.000 (custom units)/s -314.159 rad/s Linear: -0.050 counts/s -50MOTOR.PITCH on pg. 1 mm/s -50,000.004MOTOR.PITCH µm/sec -250.000 custom units/s
Data Type	Float
See Also	VL.LIMITP on pg. 1, VL.CMD on pg. 1
Start Version	M_01-00-00-000

FieldbusA Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design	Index/Subindex	Object Start Version
EtherCATEtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs COE and CANopen	3623h/0	M_01-00-00-000

Description

VL.LIMITN sets the velocity command negative limit.

If the input to the velocity loop is lower than VL.LIMITN, then the actual velocity command VL.CMD on pg. 1 is limited by the value of VL.LIMITN.

ECCN 3A255 imposes special limitations on operating speed for induction motors. See ECCN 3A225 Limitations for Induction Motors (➜ p. 1).