BONFIGLIOLI Act 201 User Manual

Operating Instructions ACTIVE 06/07104
104 Operating Instructions ACTIVE 06/07
11.6.1 Reference Positioning
The feedback of the current position is referred to the revolutions of the motors rela-
tive to the time of the reference signal. The accuracy of the positioning for the applica-
tion to be realized is dependent on the current
Actual Frequency 241, the Decelera-
tion (Clockwise)
421, the No. of Pole Pairs 373, the selected Positioning distance
460 and the parameterized control behavior.
The distance between the reference point and the required position is to be defined in
motor revolutions. The calculation of the distance covered is done with the selected
Positioning distance 460 according to the application.
The setting 0.000 U for the
Positioning distance 460 causes an immediate stop of the
drive according to the selected stopping behavior for
Operation Mode 630.
Parameter Settings
No. Description Min. Max. Fact. sett.
460 Positioning Distance 0.000 U 1000000.000 U 0.000 U
The actual value parameter Rotations 470 facilitates the setting and optimization of
the function. The revolutions of the motor displayed should correspond to the
Posi-
tioning distance
460 at the required position.
The minimum number of revolutions needed until the required position is reached de-
pends on the
Actual Frequency 241 and Deceleration (Clockwise) 421 (or Decelera-
tion Anticlockwise
423) as well as the No. of Pole Pairs 373 of the motor.
U
min
= min. number of rotations
f =
Actual frequency 241
a =
Deceleration 421 (423)
pa2
2
f
min
U
⋅⋅
=
p =
No. of Pole Pairs 373 of motor
Example: f = 20 Hz, a = 5 Hz/s, p = 2 ⇒ U
min
= 20
At an actual frequency of 20 Hz and a deceleration of 5 Hz/s, at least 20 revolutions
are required until the drive stops at the required position. This is the minimum value
for the
Positioning distance 460, a shorter positioning distance is not possible. If the
number of revolutions to the required position is to be lower, either the frequency
must be reduced, the deceleration must be increased or the reference point must be
shifted.
The digital signal for acquisition of the reference point and the logic link can be se-
lected by the parameter
Signal Sources 459. The link of the digital inputs S2IND,
S3IND and S6IND to further functions is to be checked according to selected
Configu-
ration
30 (e.g., in configurations 110 and 210, digital input S2IND is linked to the
function "Start of clockwise operation").
The signals for positioning and a stopping behavior should not be assigned to the same
digital input.
Signal Sources 459 Function
2 - S2IND, falling edge
3 - S3IND, falling edge
6 - S6IND, falling edge
The positioning starts with the change of the logic
signal from 1 (HIGH) to 0 (LOW) at the reference
point.
1x - SxIND, rising edge
The positioning starts with the change of the logic
signal from 0 (LOW) to 1 (HIGH).
2x - SxIND, rising/falling edge
The positioning begins with the change of the
logic signal.

BONFIGLIOLI Act 201 Specifications

General

Brand	BONFIGLIOLI
Model	Act 201
Category	DC Drives
Language	English