Object 204Ch: PV Scaling Factor

This object shall indicate the configured numerator and denominator of the pv scaling factor. The pv scaling factor serves to modify the resolution or directing range of the specified setpointClosedSetpoint is the target value that an automatic control system, for example PID controller, will aim to reach. It is aso included in calculation of the vl velocity demand, and vl velocity actual value. It does not influence the velocity limit function and the ramp function. The value shall have no physical unit and shall be given in the range from -32 768 to +32 767, but the value of 0 shall not be used.

The velocity scaling factor is only active, when bit 4 of FBUS.PARAM05 is set to 1. Otherwise velocities are scaled as 1/1000 rpm.

Index

204Ch

Name

pv scaling factor

Object code

ARRAY

Data type

INTEGER32

Category

optional

Subindex

0

Description

highest sub-index supported

Data type

UNSIGNED8

Category

mandatory

Access

R/O

PDO mapping

not possible

Value range

2

Default value

no

Subindex

1

Description

pv scaling factor numerator

Category

optional

Access

R/W

PDO mapping

not possible

Value range

INTEGER32

Default value

+1

Subindex

2

Description

pv scaling factor denominator

Category

optional

Access

R/W

PDO mapping

not possible

Value range

INTEGER32

Default value

+1