NORD Drivesystems BU0200 - Manual (Page 68)

3 Options
BU 0200 GB-4411 Subject to technical alterations 67
3 Options
The SK 2xxE provides a series of optional expansion modules. These modules are preferably used for the
production of the low voltage (24V control voltage) for the direct control or connection of the frequency
inverter to a host field bus.
The options are available both as an internal version for integration (into the FI), the so-called customer unit
SK CU4SK CU4-
… or as an external version, the so-called technology unit SK TU4-… The differences
between the internal and external options are merely limited to the number of additional IOs and the
permissible current load of the connection terminals.
The Customer Unit, SK CU4-... is integrated into the SK 2xxE. Electrical connection to the SK 2xxE is
made via the internal system bus. This is equipped with screw terminals for connection to external
peripherals. As an option, there is also the possibility of using 4/5-pin M12 plug connectors in the FI
housing.
A special case is the potentiometer adapter SK CU4-POT, which is mounted on the connection unit of the
frequency inverter and requires the use of an SK xU4-24V-
…mains unit or an SK xU4-IOE IO module.
The Technology Units SK TU4-... are externally attached to the SK 2xxE and are therefore easy to access.
Electrical connection to the SK 2xxE is made via the internal system bus. External 4/5-pin plug connectors
are available for use by the customer. A technology unit requires the use of a suitable SK TI4-TU-
…
connection unit. The optional wall mounting kit SK TIE4-WMK-TU also allows the technology units to be
mounted close to the inverter.
SK TI4-... with integrated SK CU4-... SK 2xxE with external SK TU4-...
An SK 2xxE frequency inverter can mange the following options via its system bus.

1 x CANopen absolute encoder and

1 x ParameterBox SK PAR-3H and (via an RJ12 connector)

1 x Field bus option (e.g. Profibus DP), internally or externally and

2 x I/O extensions (SK xU4-IOE- …), internally and / or externally
(FI firmware V1.2 R0 or higher, otherwise only 1x)
Up to 4 frequency inverters with their appropriate options can belong to a field bus.
WARNING
Modules must not be inserted or removed unless the device is free of voltage.