6-6
Drive Control
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
P-0-0048
S-0-0040
P-0-0045
P-0-0570
+
P-0-0571
P-0-0443
P-0-0442
P-0-0043
P-0-0440
DF000115v01_en.fh7
current
commutation
and PWM
f
out
monitoring
E8040
current
limitation
loop
stall protection loop
oscilla-
tion
damping
IxR
boost
U/f
charac-
teristic
slip
compen-
sation
bit 12
S-0-0040:
velocity feedback value
P-0-0043:
torque-generating current, actual value
P-0-0045:
control word of current controller
P-0-0048:
effective velocity command value
P-0-0440:
actual output current value (absolute value)
P-0-0442:
actual value torque limit positive (stationary)
P-0-0443:
actual value torque limit positive (stationary)
P-0-0570:
stall protection loop proportional gain
P-0-0571:
stall protection loop integral action time
Fig. 6-6:
Core function "stall protection loop"
The input value is the result of the command value adjustment
P-0-0048,
Effective velocity command value
, as well as the current values in the
parameters
P-0-0043, Torque-generating current, actual value
and
P-0-0440, Actual output current value (absolute value)
.
The controller is set via the parameters:
•
P-0-0570, Stall protection loop proportional gain
•
P-0-0571, Stall protection loop integral action time
The values of the parameters
P-0-0442, Actual value torque limit
positive (stationary)
and
P-0-0443, Actual value torque limit negative
(stationary)
are the torque limits to which the stall protection loop is to
limit the values.
With the slip compensation the estimated slip of the machine is
precontrolled by means of the motor model data.
P-0-0048
P-0-0572
motor data
DF000116v01_en.fh7
current
commutation
and PWM
f
out
slip compensation
monitoring
current
limitation
loop
oscilla-
tion
damping
IxR
boost
U/f
charac-
teristic
+
stall pro-
tection
loop
P-0-0048:
effective velocity command value
P-0-0572:
slip compensation factor
Fig. 6-7:
Core function "slip compensation"
The output signal of the stall protection loop is used as the input value.
The precontrol can be set via parameter
P-0-0572, Slip compensation
factor
.
Slip Compensation
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com