CanOpen protocol
Positioning module IMD20, IMD40
Velocity control test signal
Index Sub Name
Type
Attrib Map Default
value
Meaning
2091
Velocity / Position
control: test input
RECORD
Test signal for velocity
and position controller.
2091
00
Number of entries
Unsigned 8
CONST
N
4
Number of entries.
2091
01
Test: input duration
Unsigned 16
RW
N
500
Duration of the test signal.
2091
02
Test: input velocity
Signed 32
RW
N
10000
Amplitude of the test
signal (target velocity
[Incr./s])
(1)
.
2091 03 Test: input
acceleration
Unsigned 32
RW
N
10000000
Ramp slope of the test
signal (Incr./s²).
2091
04
Max Move Length
Signed 32
RW
N
50000
Maximal Move Length
(inc)
(1)
Attention: If the “Configure test input” object (index 20A0 and sub-index 01) amounts to the value
of 6, the maximum speed is determined. In this case, the amplitude of the test signal is the maximum
path length to be moved in [Incr.]. This object restricts the range of movement of the axis during the
determination process.
Start test signal
Index Sub Name
Type
Attrib Map Default
value
Meaning
20A0
Test
input
RECORD
Choose test signal and
start.
20A0
00
Number of Entries
Unsigned 8
CONST
N
2
Number of entries.
20A0
01
Configure Test-Input Unsigned 8
RW
N
0
Selection of the test
signal.
20A0
02 Start
Test-Input
Unsigned
8 WO
N 0
The writing of a 1
launches the test signal.
20A0 03 Test-Input
Status
Unsigned 8
RO
N
0
Test input status
The sub-index 2 helps to carry out the following settings:
Configure test
input
Internal mode of operation
0
Back to normal mode of operation
1
Determine maximal acceleration
2
Test signal velocity control
3
Test signal position control
4
Encoder test positive direction
5
Encoder test negative direction
6
Determine maximum velocity
7
Velocity control with ramp profile
8 Following
error
9
Speed amplification factor kv
10
Test signal current control
126