Siemens A1 User Manual
Getting Started
International English
20
MICROMASTER Applications Handbook
4.4 First
Switch
On
The Getting Started Guide or Operating Instructions that are supplied with the
inverter will give detailed instructions on how to start and set up the inverter.
However, some general points are worth noting:
inverter will give detailed instructions on how to start and set up the inverter.
However, some general points are worth noting:
· The inverter will usually operate a standard motor and load without changing
the factory settings.
· To optimise performance, and for special applications, the factory settings may
be changed. This is usually achieved by adjusting parameters, which are
programmable settings that control various characteristics of the inverter.
Parameters are usually set via a keypad or computer, and are normally stored
by the inverter even after the power is switched off. The procedure for
changing parameters is described in the the Operating Instructions.
programmable settings that control various characteristics of the inverter.
Parameters are usually set via a keypad or computer, and are normally stored
by the inverter even after the power is switched off. The procedure for
changing parameters is described in the the Operating Instructions.
· If too many parameters are changed, and performance is not as required, it may
be advisable to reset all parameters to the factory setting and start again.
· ‘Quick set up’ or ‘Commissioning’ programmes may simplify programming and
parameter setting. Check the ‘Getting Started Guide’.
· If there is a problem with the inverter or its settings, the display will usually flash
or otherwise indicate a fault or warning. The handbook will suggest a trouble
shooting procedure.
shooting procedure.
· If the motor goes in the wrong direction, switch off at the supply, wait five
minutes for the internal capacitors to discharge, and swap any two motor
connections. Of course, the motor can also be reversed using the front panel
controls, digital inputs etc.
connections. Of course, the motor can also be reversed using the front panel
controls, digital inputs etc.
· If the motor is heavily loaded, or if the parameters have not been correctly set it
may not turn. Set the motor parameters as described in the Operating
Instructions.
Instructions.