NORD Drivesystems BU0200 - Manual (Page 104)

3 Options
BU 0200 GB-4411 Subject to technical alterations 103
3.5.2 Mains unit, SK TU4-24V- … (only SK 2x5E)
The mains unit is used to produce the 24V control voltage for SK 2x5E frequency inverters from the
available mains voltage (115V/230V/380V/500V). With this, a separate external 24V control voltage is not
necessary.
An analog output is also available for the connection of a potentiometer.
• Mains unit for 100-240V, SK TU4-24V-123-B
• Mains unit for 380-500V, SK TU4-24V-140-B
• +24V- output voltage
• 1x analog input (e.g. potentiometer)
• 1x impulse output
• Status LED = 24V
• Max. permissible continuous current: 420mA
The Mains unit SK TU4-24V- …can only be used in combination with an SK TI4-TU-NET adapter unit.
Details of the control connection are described in the Section for the Adapter Unit (Section 3.5.1.2)
A connection and parameterisation example is described in Section 3.4.1.
To process current setpoint values (0(4)- 20mA), the enclosed bag contains a 500Ω resistor, for connection
between terminals 12 and 14. Matching of the relevant input of the frequency inverter is made via parameter
(P420).
Setpoint Parameter [Array] Setting
0 … 20mA P420 [-02] or [-03] {26}
4 … 20mA P420 [-02] or [-03] {27}
NOTE
The use of SK CU4-24V- … / SK TU4-24V-… on the SK 2x0E is not permissible!
A mains unit is integrated into the SK 2x0E inverter models, so that no external 24V DC is
required.