6-10
Drive Control
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
The activation of the stall protection loop is displayed in parameter
P-0-0046, Status word of current controller
(bit 12: stall protection
loop):
•
bit 12 = 1
→
stall protection loop active
In addition, the diagnostic message
E8040 Torque/force actual value
limit active
is generated.
•
bit 12 = 0
→
stall protection loop not active
The activation of the current limitation loop is displayed in parameter
P-0-0046, Status word of current controller
(bit 13: current limitation
loop):
•
bit 13 = 1
→
current limitation loop active
In addition, the diagnostic message
E8041 Current limit active
is
generated.
•
bit 13 = 0
→
current limitation loop not active
The status of the velocity search mode can be read in parameter
P-0-0046, Status word of current controller
(bit 14: search mode):
•
bit 14 = 1
→
search mode active
•
bit 14 = 0
→
search mode not active
Field-Oriented Closed-Loop Current Control
Brief Description
The drive function "field-oriented current control" is made available in the
base package "closed-loop".
Note:
The current loop was preset for all Rexroth motors and
normally does not have to be adjusted.
For notes on how to commission the current loop for third-
party motors see "Third-Party Motors" in chapter "Motor,
Mechanical Axis System, Measuring Systems"!
In the case of field-oriented closed-loop current control, the internal
control task consists in generating the transformed currents I
d
and I
q
in
closed-loop-controlled form:
•
I
d
(field-generating current)
→
PI loop for I
d
•
I
q
(torque-generating current)
→
PI loop for I
q
With the firmware, you can operate asynchronous and synchronous
motors in the entire speed range, including field weakening.
As a basic principle, we distinguish the following three working ranges:
•
base speed range (1)
→
constant torque
•
field weakening range (2)
→
constant power
•
field weakening range (3)
→
power limit range
Status of Stall Protection Loop
Status of Current Limitation
Loop
Status of Velocity Search Mode
Working Ranges
Base package
of all variants in
closed-loop
characteristic
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
