7.5.20x6043 vl_velocity_demand

This read only object provides the instantaneous velocity demand generated by the drive ramp function. The value is given in rpm if the vl_dimension_factor and the vl_setpoint_factor have the value 1, otherwise the value is in user units. Positive values indicate forward direction and negative values indicate reverse direction.

Table 7.38 vl_velocity_demand

0x6043

vl_velocity_demand

 

Access: RO

 

Range: -32768 to +32767

Size: Signed 16

Unit: rpm

Default:

0

 

 

 

 

 

Description:

Provides the instantaneous velocity demand generated by the drive ramp function

7.5.3 0x6044 vl_velocity_actual_value

This read only object provides the velocity at the motor spindle or load. In a closed loop system this is determined from the motor feedback device and in an open loop system it is a copy of vl_velocity_demand.

The value is given in rpm if the vl_dimension_factor has the value of 1, otherwise the value is in user units. Positive values indicate forward direction and negative values indicate reverse direction.

Table 7.39 vl_velocity_actual_value

0x6044

vl_velocity_actual_value

 

Access: RO

 

Range: -32768 to +32767

Size: Signed 16

Unit: N/A

Default:

0

 

 

 

 

 

 

Description:

Provides the velocity at the motor spindle or load.

 

 

Only available when in vl_velocity_mode.

 

7.5.4 0x6046 vl_velocity_min_max_amount

This object is used to configure the minimum and maximum velocity.

The value is given in rpm if the vl_dimension_factor has the value of 1, otherwise the value is in user units.

Table 7.40 vl_velocity_min_max_amount

0x6046

vl_velocity_min_max_amount

 

 

Sub-index 0

 

 

 

 

Access: RO

 

Range: N/A

Size: Unsigned 8

Unit: N/A

 

 

 

 

 

Default:

2

 

 

 

 

 

 

Description:

The number of last sub-indexes in this object.

 

 

 

 

 

 

Sub-index 1

 

 

 

 

Access: RW

 

Range: 0 to 0xFFFFFFFF

Size: Unsigned 32

Unit: rpm

 

 

 

 

 

Default:

0

 

 

 

 

 

Description:

Used to configure the minimum velocity (both in the forward and reverse direction) that the

 

system can operate at. Writing to this sub index will overwrite vl_velocity_min positive and

 

vl_velocity_min negative.

 

 

 

 

 

 

 

Sub-index 2

 

 

 

 

Access: RW

 

Range: 0 to 0xFFFFFFFF

Size: Unsigned 32

Unit: rpm

 

 

 

 

 

Default:

2147483647

 

 

 

 

 

Description:

Used to configure the maximum velocity (both in the forward and reverse direction) that the

 

system can operate at. Writing to this sub index will overwrite vl_velocity_max positive and

 

vl_velocity_max negative.

 

 

 

 

 

 

 

42

SM-EtherCAT User Guide

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Issue Number: 2

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Emerson 0471-0128-02 manual 2 0x6043 vlvelocitydemand, 3 0x6044 vlvelocityactualvalue, 4 0x6046 vlvelocityminmaxamount