Beckhoff EP7402-0057, Manual

Page: 49 / 63

CoE objects
EP7402-0057 49 Version: 1.3
Index 8023: STM Controller Settings 4 Ch. 1
Index 8033: STM Controller Settings 4 Ch. 2
Access rights: read/write
Subindex
(hex) Name Description Unit Data type Default
value
02 Disable stop after un-
successful rampup This prevents a commutation error after unsuccessful ramping
up the motor. The commutation is continued at Rampup veloc-
ity. - BOOL FALSE
03 Disable motor diagno-
sis This parameter disables the motor protection functions during
the alignment phase. - BOOL FALSE
04 Disable I2T current
limiting This bit disables the I2T current limiting above a 97% limit. This
could be unstable during low velocities.
FALSE: The output current is limited when the motor I
2
T value
exceeds 97 %.
TRUE: no current limiting.
- BOOL FALSE
11 Velocity loop integral
time Velocity controller parameter: Integral time T
i
0.1 ms UDINT 500
dec
12 Velocity loop propor-
tional gain Velocity controller parameter: Proportional coefficient K
P
µV (°/s) UDINT 100
dec
13 Velocity feed forward
gain Bypasses the velocity controller directly with its Target voltage.
With correct Rated voltage and speed the Actual velocity will
be close to the Target velocity at 100% Feed Forward. % USINT 0
14 Sensorless offset
scaling This parameter affects the output current during alignment and
rampup phase.
The output current is specified in percent of the nominal cur-
rent,
CoE index 80n0:02 [ } 47] .
% USINT 50
dec
15 Align duration Duration of the alignment phase ms UINT 1000
dec
18 Rampup duration Duration of the ramp-up phase ms UINT 1000
dec
19 Rampup velocity Target velocity for the roller at the end of the ramp-up phase.
See also subindex 02
hex
.
°/s UINT 3000
dec
21 Rampup needed
switchover events The amount successful commutations which are needed to
switch from forced commutation (ramp-up phase) to regulated
commutation. - UINT 20
dec
22 Commutation thresh-
old This value is to modify the commutation for different motors. - UINT 50
dec
23 Current loop propor-
tional gain Proportional component of current controller 0.1 V/A UINT 2
24 Current loop integral
time Current controller integral action time (Tn) 0.1 ms UINT 20
dec
25 Restart after error
number of repetition
Automatic restart after error [
}
38]
If a commutation error occurs, the motor can be restarted auto-
matically. This parameter determines the number of commuta-
tion errors and restarts that may occur before the motor is fi-
nally switched off. If this parameter is zero, the motor will be
switched off immediately after a commutation error in nominal
operation.
- UINT 0
26 Restart after error de-
lay This parameter determines the time span between a commuta-
tion error and the automatic restart. See also subindex 25. ms UINT 1000
dez