Stop Commands - Altivar Process ATV900 Manual

Variable speed drive for asynchronous and synchronous motors
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Stop Commands

Halt Command
The Halt command enables movement to be interrupted without having to leave the 5 - Operation
enabled state. The stop is performed in accordance with the [Type of stop] Stt parameter.
If the Halt command is active, no power is supplied to the motor and no torque is applied.
Regardless of the assignment of the [Type of stop] Stt parameter [Fast stop Assign] FSt, [Ramp stop]
rMP, [Freewheel Stop] nSt, or [DC Injection Assign] dCI, the drive remains in the 5 - Operation
enabled state.
Fast Stop Command
A Fast Stop command at the terminals or using a bit of the control word assigned to Fast Stop causes
a change to the 4 - Switched on
Freewheel Command
A Freewheel Stop command using a digital input of the terminal or a bit of the control word assigned
to Freewheel Stop causes a change to operating state 2 - Switch on disabled.
NHA80945 04/2017
Software Setup
49

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