
Position Control
20
PI-Speed
Controller
MOSFET
Power
Amplifier
EC-Motor
Armature
Position
Calculation
Phase A
Phase B
Phase C
Hall Sensor A
Hall Sensor B
Hall Sensor C
Speed
Calculation
I
2
t - Current
Limiting
R
S
GND
V7
Microcontroller
RS-232
Communication
and Configurations-
Module
+ 24V DC
V6
U
B
2,7k
LED
V4
Fault
Output
Analog
Input
AGND
PC TXD
PC RXD
GND
n
act
V5
V3
V2
V1
RXD
TXD
I
act
Position
Controller
Command
Position
Evaluation
Limit Switch
10k
E
xa
m
ple
:
Lim
it S
w
itc
h
+
_
RS-232
Interface
3 Phase
PWM
Sine Wave
Commutator
ϕ
(t)
n
com
∆ϕ
U
a
Protection:
Current Limit
Overtemperature
Overvoltage
Undervoltage
5V-Regulator
VCC
Signal GND
Evaluation
Input 3
Input 3
V8
M8
M7
M1
M2
M5
M6
M3
M4
brown
orange
yellow
green
blue
grey
red
black
+5V
Diagram 6: Position control with a reference switch at the analog input
The following Command Sequence is necessary to switch from Speed Control Mode (factory setting)
to Positioning Mode:
SOR0 [enter]
➔
Switches to RS-232 Communication in Speed Control Mode
LR0 [enter]
➔
Load Relative Position 0
M [enter]
➔
Switches to Positioning Mode
Positioning commands:
Command Function
Description
Example
M *)
Initiate Motion
Activates positioning mode and starts positioning
M
LA
Load Absolute
Loads the new value for the absolute position.
LA100000
Position
Arguement: 1000 indicates 1 revolution.
LR
Load Relative Position Loads a new relative position
LR5000
SP *)
Load Maximum
Loads a new maximum velocity.
SP4000
Speed
Arguement: rpm from 0 to 30000
AC *)
Load Command
Loads a new value for acceleration.
AC100
Acceleration
Arguement: Rev/s
2
from 0 to 30000
NP
Notify Position
A “p” will appear on the screen when the motor has
NP10000
rotated beyond a given position.
asynch
➔
p
NV
Notify Velocity
A “v” will appear when a given velocity has been
NV5000
achieved. asynch
➔
v
Содержание MCDC2805 series
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