37
4 Functional Description
4.4 Enhanced operating modes
Circuit example, gearing mode for MCBL 3003/06 S
C
ircu
it exa
m
ple
:
Reference sw
itch
Error
output
Evaluation
reference mark
Protective functions:
Overtemperature
Overcurrent
Overvoltage
Analog
input
Target
position
calculation
Position
controller
n
target
PI velocity
controller
3 phase
PWM
sinus
commutator
MOSFET
Power
output
stage
EC motor
brown
orange
yellow
green
blue
grey
red
black
5 V
controller
Rotor
position
calculation
5 V
controller
I
2
t current
limitation
controller
RS232
communication
and configuration
module
I
actual
Velocity
calculation
n
actual
Evaluation
input 3
Set-point
encoder
Microcontroller
Input 3
RS232
Interface
.
.
4.4.3 Analog positioning mode
In analog positioning mode, the position set-point can be preset via a potentiometer or an external
analog voltage.
Command Function
Description
APCMOD
Analog Position Control Mode
Change to position control via analog voltage
The maximum position to be approached with a voltage of 10 V can be preselected with the LL com-
mand. With a voltage of –10 V, the drive moves in the opposite direction.
Command Function
Description
LL
Load Position Range Limits
Load limit positions (the drive does not move out
of these limits in positioning mode, positive values
specify the upper limit and negative values specify
the lower limit). APCMOD: Position value at 10 V
Irrespective of the preset LL value, the maximum position is limited to 3 000 000 (COMPATIBLE1 =
1 000 000) in APCMOD. Comment: The resolution of the analog input is limited to 12 bit (4096 steps).
The direction of rotation can be predefined with the commands ADL and ADR. The acceleration and
speed values (AC, DEC, SP) are also taken into account in APCMOD. These permit gentle starting and
deceleration.
Positioning via pulse width signal (PWM) at the analog input (SOR2):
If SOR2 is set in APCMOD, the pulse duty factor of a PWM signal can be used as position set-point.
At delivery:
pulse duty factor > 50%
positive target position
pulse duty factor = 50%
target position = 0
pulse duty factor < 50%
negative target position