192
Operating Instructions ACU
12/16
16.4.1
Start command
Parameters
Start Clockwise
68
and
Start Anticlockwise
69
can be linked to the available digital
control inputs or the internal logic signals. The drive is only accelerated according to the control
method after a start command.
The logic functions are used for the specification of the direction of rotation, but also for using the
parameterized
Operation Mode
620
for the starting behavior and
Operation Mode
630
for the
stopping behavior.
16.4.2
3-wire control
In the case of 3-wire control, the drive is controlled using digital pulses. The drive is prepared for
starting via the logic state of the signal
Start 3-Wire-Ctrl
87
and started by a Start Clockwise pulse
(parameter
Start Clockwise
68
) or a Start Anticlockwise pules (
parameter Start-Anticlockwise
69
).
The drive is stopped by turning the signal
Start 3-Wire-Ctrl
87
off.
The control signals for Start clockwise and Start anticlockwise are pulses. The functions Start
clockwise and Start anticlockwise for the drive are latching-type functions when signal
Start 3-Wire-
Ctrl
87
is turned on. Latching is canceled when the latching signal is switched off.
Start
Machine
Start anticlockwise
Start clockwise
1
2
t
R
R
L
(R)
Clockwise
(1)
Signals are ignored
(L)
Anticlockwise
(2)
Time t < 32 ms
The drive is started according to the configured starting behavior if the signal
Start 3-Wire-Ctrl
87
is on and a positive signal edge for Start clockwise or Start anticlockwise is detected.
Once the drive has started, new edges
(1)
on the start signals will be ignored.
If the start signal is shorter than 32 ms
(2)
or if both start signals were switched on within 32 ms
(2) the drive will be switched off according to the configured stopping behavior.
3-wire control is activated with parameter
Local/Remote
412
:
Local/Remote 412
Function
5 - Ctrl. 3-wire,
direction Cont.
3-wire; control of sense of rotation and signal
3-Wire Ctrl
87
via contacts.
46 -
Ctrl. 3-Wire+KP, Dir.
Cont. +KP
3-wire and control unit; control of direction of rotation and signal
3-Wire
Ctrl
87
via contacts or control unit.
For further operation modes of parameter
Local/Remote
412
, see Chapter 19.3 "19.3".
Summary of Contents for active cube 201
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Page 45: ...12 16 Operating Instructions ACU 45...
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