NORD Drivesystems BU0750 - Manual (Page 40)

NORDAC SK 750E Manual
40 Subject to technical amendments BU 0750 GB-3311
NOTE for 5V / 15V power supplies
The customer units and special extension units have various power supplies (5V / 15V) which
can be used externally. The maximum permissible external load current is 300mA. This can be
taken from one or more power supplies. The total current must however not exceed 300mA.
All control voltages are related to a common reference potential!
Potentials AGND /0V and GND /0V are internally linked in the device.
3.3.1 Installation of customer units
1. Switch off the mains voltage, observe
the waiting period.
2. Remove the cover by unscrewing the
8 screws, noting the PE connection.
3. Using light pressure push the
customer unit into the left guide rail
until it engages.
4. Remove the connector by pressing
the releases and make the necessary
connections. Then push on the
connector.
5. Replace all covers.
ATTENTION
The PE connection must be
reconnected. Otherwise the device
must not be used (see adjacent
illustration)!
WARNING Installation must be carried out by qualified personnel only, paying particular attention to safety and
warning instructions.
Customer units must not be inserted/removed when live.
Following the insertion, replacement or removal of modules, and once the equipment has been
switched on again, this procedure is indicated with the message E017 Customer unit changed.
Restore all PE connections!