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Description
3.4 Closed-loop control
3.4
Closed-loop control
3.4.1
Structure
The exact arrangement of the components is shown in the layout diagram in the technical
specifications.
3.4.2
Indicator lights
The four indicator lights H21 to H24 are installed at the top in the door of the open-loop and
closed-loop control cabinet.
3.4.3
Mushroom pushbutton
The mushroom pushbutton is used for safety shutdown. When the safety shutdown function is
actuated, the converter shuts down with a fault and a corresponding message appears on the
display of the operator panel. Before you restart the converter you must acknowledge the fault.
Danger due to high voltages after a safety shutdown
In spite of a safety shutdown function, the drive may still be operational or high voltages may
still be present.
Residual voltages can result in death, severe injury or significant material damage. The "Safety
shutdown" function can neither ensure that the drive stops immediately nor can it ensure that
residual voltages do not still exist at the output terminals and within the unit.
• Make sure that the drive no longer rotates and that there are no high voltages present.
3.4.4
Operator panel AOP30
You can use the Advanced Operator Panel (AOP30) for operating and troubleshooting the drive.
The AOP30 communicates with the drive via a serial RS-232 interface with PPI protocol. The
interface is a point-to-point connection. The AOP30 has the master function in this
communication. The connected drive has the slave function.
36
WARNING
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
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