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
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
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.
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