BMR SFU 0102, Руководство пользователя

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7.2 Starting and Stopping the Frequency Converter
There are different methods of starting and stopping SFU 0102/0202 frequency converters,
due to many different requirements, as follows below:
manually via panel keys
Remote control via digital input
Remote control via analogue input
Remote control via serial interface
Before starting the converter is possible, a preset of the RPM (> 7.4) has to be done. This is
necessary for all options of starting with the exception of analogue starting.
Manually via panel keys
Activation of spindle start via the green START key.
Spindle-stop is activated by the red STOP key on the operator panel.
Remote control via digital input Start/Stop by external PLC or CNC
Digital Input 1 is the default. To change this, click on the menu ‘
digital inputs
’. The correct
spindle characteristic can be preset here also.
Depending on your safety regulations, you can program this individually and set high or low
active signals. In general, when using SPS control, it is best to set safety cut-outs at low-
active, so that the machine will stop should a cable or connector defect occurs.
Remotely via the analogue input
Analogue starting will be enabled where at least one of the analogue inputs in the menu
'
analogue inputs ' is selected and a valid signal at the digital input Start/Stop is present.
Additionally a scaling has to be selected from list-box duty RPM of analogue value to RPM.
Remotely via the RS232 serial interface from a PC or PLC .
The speed pre-selected from the panel is taken as the required speed in this instance. Speed
can be altered via commands from the RS232 interface.
The RS232 interface offers complete control of the SFU 0102/0202 converter via the optional
full- version Windows platform. The level of control this provides is almost at machine-level,
so that this option is more appropriate for error evaluation and special control features via PC.
If you need to control the
SFU 0102/0202 remotely, please contact BMR or your local
distributor for assistance and the RS232 command-set.
Where one of the above options has been selected to operate the converter,
only that preselected option can then be used to stop the converter! Only
one of the safety functions can override the operation.