BMR SFU-0302-SSE, Manual

SFU-0302 SSE 

M a n u a l 

– 17– 

 
 
BMR GmbH 

2014-03-17 

E   

! 

 
7.5  Starting and Stopping the Frequency Converter 

(all references to menues relate to setup software SFU-Terminal)

 
There are different methods of starting and stopping SFU-0302 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 themenue ‘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 menue 
'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-0302 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-0302 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 pre-
selected option can then be used to stop the converter! Only one of the safety functions can 
override the operation. 

7.6  Remote-Controlled Configuration of Direction of Rotation via Digital Inputs 

 
Via digital input RPM direction  . Setup is carried out in menue ‘digital inputs’. This is necessary, 
if the direction of rotation has to be controlled , for example, via a PLC. Reversal can only take 
place once the spindle / motor has come to a complete stop. If the direction pre-selection setting 
is changed whilst the spindle / motor is running, the spindle / motor will not turn in the new 
direction until it has been brought to a complete standstill and then restarted.