Mode of operation
Abbreviation
Code
Profile velocity mode
pv
3
Homing mode
hm
6
Table 5-1 Supported operation modes
The supported modes are listed in the object
Supported drive modes
.
5.2
Profile position mode (pp)
5.2.1 Overview
When the drive is in pp mode, the position control loop is closed on the drive side. The control
device can manage the positioning by acting on the objects shown in Figure 5-1 below.
Figure 5-1 Trajectory generator for pp mode
Set-points handshake is controlled by the
Controlword
bits
new set-point
, as well as the bit
set-
point acknowledgement
in the
Statusword
.
After a set-point is applied to the drive, the control device signals that the set-point is valid by a
rising edge of the
new set-point
bit. The drive device sets the
set-point acknowledgement
bit and,
afterwards, the drive signals its ability to receive a new set-point clearing the
set-point
acknowledgement
bit. An example is shown in Figure 5-2.
HT7 Ethercat User Guide
6
Содержание EtherCAT HT7
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