1 general information – NORD Drivesystems BU0200 User Manual
Page 11
SK 200E Manual for frequency inverters
10
Subject to technical alterations
BU 0200 GB-4411
1 General information
The SK 200E series is based on the tried and tested NORD platform. These devices feature a compact
design with optimum control characteristics.
These devices are provided with sensorless vector current control which in combination with asynchronous
three-phase motor types constantly ensures an optimised voltage-to-frequency ratio. This has the following
significance for the drive: Peak start-up and overload torques at constant speed.
This series of devices can be adapted to individual requirements by means of extension modules.
Due to the numerous setting options, these inverters are capable of operating all three-phase motors. The
power range is from 0.25kW to 7.5kW with an integrated mains filter.
This manual is based on the device software V1.3 R0 (see P707) of the SK 200E. If the frequency inverter
used has a different version, this may lead to some differences. If necessary, you can download the current
manual from the Internet
There are additional descriptions for the functional safety of the various versions SK 21xE/22xE/23xE
(BU 0230), the integrated AS interface (BU 0200, Section 5.4) and the positioning system (BU 0210).
If a bus system is used for communication, a corresponding description (e.g. BU 0220 für PROFIBUS DP) is
provided, or this can be downloaded from the Internet
.
Typically, this series of devices is installed directly on a three-phase asynchronous motor. Alternatively,
there are optional accessories for mounting the devices in the vicinity of the motor, e.g. on a wall or the
frame of a machine.
In the simplest configuration, even without an EEPROM, there is the possibility of setting all important
parameters via two potentiometers and eight DIP switches. LEDs are provided for the diagnosis of the
operating status. The use of a control module is therefore not absolutely necessary.
In order to gain access to all parameters, the internal RS232 PC interface (RJ12) can be used, or an
optional SimpleBox or ParameterBox may be used. In this case, the parameter settings which have been
changed by the operator are stored in the plug-in EEPROM. The EEPROM must then always remain
plugged in during operation.
ATTENTION
In the software change from version V1.1 R1 to V1.2 R0 of the frequency inverter, the
structure of individual parameters was modified for technical reasons.
(E.g.: up to version V 1.1 R2, (P417) was a simple parameter. As of version V 1.2. R0 this has been
divided into two arrays ((P417) [-01] and [-02]))
When plugging an EEPROM from a frequency inverter with an earlier software version into
a frequency inverter with software version V1.2 or higher, the stored data is automatically
converted to the new format. The new parameters are saved in the default settings. Correct
functioning is therefore ensured.
However, it is not permissible to plug an EEPROM with a software version higher
than V 1.2 into a frequency inverter with a lower software version, as this may lead to
a complete loss of data.