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SINUS PENTA
PROGRAMMING GUIDE
320
/
486
37.1.1.
START
The
START
function may be assigned to a digital input (MDI1..8); to an auxiliary digital input (XMDI1..8); to a virtual
auxiliary digital output (MPL1..4) or to a timed flag (TFL1..4). The input programming is set via parameter
C149
.
To enable the Start input, set the control modes via terminal board (factory setting). The
START
command can also be
sent from the display/keypad. The programmed input Enable/Disable can be delayed via special timers.
The
START
input function is assigned to MDI1 terminal by default, but it can be assigned to other terminals as well. The
same terminal programmed as
START
may be allocated to different functions as well.
The motor stop mode (
C185
)
can be programmed. When removing the
START
command, the following motor stop
modes can activate:
the motor stops following a deceleration ramp or starts idling; the motor is fluxed (VTC, FOC) only when the
START
command is shut down and the
ENABLE
is not active (
C184
).
When
START
is
active
(and when the
ENABLE
function is active as well), the
RUN
command is enabled: the speed (or
torque)
setpoint
increases proportionally to the preset ramp until it reaches the active
reference
. (IFD control: in order to
enable the RUN command, the main speed reference must be other than zero).
When
START
is
inactive
(also when the
ENABLE
is active), the
RUN
command is disabled: the reference is set to zero
and the speed (or torque) setpoint decreases down to zero depending on the preset deceleration ramp.
NOTE
The way the
START
enables or disables the
RUN
command also depends on the setup of
other functions, in particular the
STOP
,
REVERSE
and
JOG
functions
(see parameters
C150
,
C151
,
C169
).
If the
REVERSE
(
C151
≠
0) function is enabled, it can enable/disable the
RUN
command.
However, if the
START
and
REVERSE
commands are both active, the
RUN
command is
disabled.
In this case, START is interpreted as FORWARD and REVERSE as REVERSE. When both
Start and Reverse are active, the system cannot interpret the query to be FORWARD or
REVERSE.
If the
JOG
function is enabled
(
C169
≠
0),
it can enable/disable the
RUN
command, but only if
the
RUN
command has not been previously enabled by other functions.
If the
STOP
function is enabled (
C150
≠
0), the
RUN
command
may be enabled/disabled only
by pressing the relevant “key”: see the description of the
STOP
function (
C150
).
NOTE
If only the keypad is enabled as the command source, press the
START
key located on the
keypad to enable the drive
RUN
and press the
STOP
key to disable the drive
RUN
.
NOTE
If
C185
= Free Wheel when removing the
START
command, the drive will not carry out the
deceleration ramp and will be put on stand-by.