5.4
Homing mode (hm)
5.4.1 Overview
This operation mode is used to make the drive seek for the zero (homing) position. Figure 5-8
shows the objects involved in this functionality. The home position and the zero position are offset
by the home offset. Actually, HT7 drive supports the methods described in the following sections
and available on the object
Supported homing methods
.
Figure 5-8 Homing mode function
To select the drive input to have homing, use the object Digital Inputs Configuration (0x2070) and
Digital Inputs Functionalities(0x2071).
5.4.2 Controlword Homing mode mode-specific bits
To start the homing position, the
Homing operation start
, bit 4 in the
Controlword
, must be set. The
motor can be halted during the homing procedure setting the
Halt
bit in
Controlword
.
5.4.3 Statusword Homing mode mode-specific bits
The bits of the Statusword listed in Table 5-7 describes the operative status of the drive when in
homing mode.
Bit 13 Bit 12 Bit 10 Definition
0
0
0
Homing procedure in progress
0
0
1
Homing procedure interrupted or not started
0
1
0
Homing is attained, but target is not reached
0
1
1
Homing procedure completed successfully
1
0
0
Homing error occurred, velocity is not 0
1
0
1
Homing error occurred, velocity is 0
1
1
X
Reserved
Table 5-7 Statusword bits 10, 12, 13 in homing mode
HT7 Ethercat User Guide
10
Содержание EtherCAT HT7
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