VL.FB

Description

VL.FB returns the velocity feedback as it is received in the velocity loop, after passing through Filter 3 and Filter 4.

General Information

Type	R/O Parameter
Units	Depends on UNIT.VROTARY or UNIT.VLINEAR Rotary: rpm, rps, deg/s, (custom units)/s, rad/s Linear: counts/s, mm/s, µm/s, (custom units)/s
Range	N/A
Default Value	N/A
Data Type	Float
See Also	VL.CMDU
Start Version	M_01-00-00-000

Variants Supported

Variant	Supported
AKD Base	Yes
AKD with Position Indexer	Yes
AKD EtherCAT	Yes
AKD CANopen	Yes
AKD BASIC	Yes
AKD SynqNet	Yes*
AKD EtherNet/IP	Yes
AKD PROFINET	Yes
AKD Sercos® III	Yes
AKD-N	Yes
AKD-C	No

*In SynqNet, a parameter may be available in the firmware but have no effect on the system. See SynqNet Supported Parameters.

Fieldbus Information

If your drive type is listed as supported but no index, address, or instance number is listed, then this parameter is accessible through WorkBench, but not over your fieldbus type. For information on SynqNet parameters see SynqNet Supported Parameters.

EtherCAT CoE and CANopen

Index/Subindex	Object Start Version
3618h/0 606Ch/0	M_01-00-00-000

PROFINET and Sercos® III

Fieldbus	Parameter	Address	Attributes	Signed?
PROFINET	VL.FB_32	2428	DWord	Yes
Sercos® III			8 Octets

EtherNet/IP

Instance	Data Size	Data Type
429	8 Byte Signed	Velocity

Modbus

Register Address	Is 64 bit?	Attributes	Signed?	Object Start Version
856	Yes	low 32 bit word	Yes	M_01-03-00-000

Related Topics

"Velocity Loop"