BMR SFU 0303/4, Manual

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The picture shows a configuration with passive switches in combination with the auxiliary
voltage of the converter.
For stabilizing the reference analogue voltage for the duty speed a voltage regulator 7810 is
used. In combination with a PLC generally a D/A-converter with 10V output level is used
The outputs are executed in such a way that the logic levels 0V and +24V are generated by the
galvanically separated relays. For any other arrangement, the relay contacts can be wired and
used freely. In the arrangement shown above, the logic level is assigned to the GND of the
converter. The outputs shown in the diagram can be used directly as feed into a PLC.
Description of the behaviour during Start with released analogue input: Scaling:0-
10V/MinMax
Enabling via input "digital start" – the spindle starts as soon as the level at the analogue input
"duty speed" is higher than the minimum rotational speed limit being setup in spindle
characteristic. It will stop, as soon as either "digital start" is low or the level at analogue input
"duty speed" is below the minimum rotational speed limit.
In case of applying 10V to "analogue input "duty speed" and 16V to "digital start", the spindle
will accelerate up to maximum speed.
11. EMC
The compliance with the limit values of EMC is the responsibility of the manufacturer of the
machine or device.
This device was developed for use in industrial environments. For trouble-free operation and
to reduce emitted interference, the following should be observed during wiring of the
equipment:
The EMC of a machine or device is affected by all connected components (motor spindle,
length and type of cables, wiring, etc..). Under certain conditions the use of additional filters
can be necessary to maintain the current laws.
The earth and shield connections of all those devices used in conjunction with the frequency
converter should be as short as possible and have as large a cross-section as possible.
Control devices used with the frequency converter (PLC, CNC, IPC, ...) should be connected to
a common earth/earth terminal bar
All connections both to and from the frequency converter should be via shielded cable.
Supply cables, motor cables and control cables must be completely isolated from each other.
Where crossing cannot be avoided, cables should be laid at 90° to each other.
The control cable should be laid as far away as possible from the load cable.