13
7
Safety Functions
A
controlled spindle stop
according to the preset acceleration data is carried out because
of the events listed below.
Converter switch-off, if maximum power consumption is exceeded constantly.
In this case the thermofuse with the ON-OFF switch is triggered.
Stop because of exceeding the max. internal temperature of the converter after a time
delay of 10sec.
Stop because of exceeding the max. nominal output load of the converter after a time
delay of 10sec.
Immediate-Stop because of exceeding maximum spindle current.
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 ground and shield connections of all devices used in conjunction with the frequency
converter should be as short as possible and have as large cross-section as possible.
Control devices used with the frequency converter (PLC, CNC, IPC, ...) should be connected
to an earth terminal bar.
For mechanical installation, use serrated lock washers to guarantee good electrical contact
with the housing.
All connections both to and from the frequency converter should be shielded cables.
The shield must be completely connected to ground.
Supply cables, motor cables and control cables should be mounted separated from each
other. Where crossing points 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 spindle cable.
8
EMC Electro Magnetic Compatibility
