6-64
Drive Control
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Current and Torque Limitation (Open-Loop)
Brief Description
In open-loop operation there is a current limitation and a torque/force
limitation available in the drive. Both limitations take effect independently
of each other.
See section "Current and Torque Limitation (Closed-Loop)"
Other possibilities of current and torque limitation in open-loop operation:
•
limitation of the available peak current or torque by dynamic controller
and motor protection equipment with current limitation loops
•
user-side limitation of the available torque or force via stall protection
loop
P-0-4046
current
limitation
loop
stall
protection
loop
P-0-0048
S-0-0040
velocity command
value
DF000082v02_en.fh7
U/f regulation (open-loop)
torque/
force limitation
current
limitation
P-0-0442
P-0-0443
S-0-0040:
velocity feedback value
P-0-0048:
effective velocity command value
P-0-0442:
actual value torque limit positive (stationary)
P-0-0443:
actual value torque limit negative (stationary)
P-0-4046:
effective peak current
Fig. 6-42:
Principle of current and torque limitation (open-loop)
Operating Principle of Stall Current Loop and Current
Limitation Loop
See also "Functional Description: Stall Protection Loop" in section "Motor
Control: Voltage-Controlled Operation (Open-Loop)"
See also "Functional Description: Current Limitation Loop" in section
"Motor Control: Voltage-Controlled Operation (Open-Loop)"
Current and Torque Limitation (Closed-Loop)
Brief Description
In closed-loop operation there is a current limitation and a torque/force
limitation available in the drive. Both limitations take effect independently
of each other.
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
