NORDAC SK 750E manual
26
Technical design subject to change
BU 0750 GB
3.2 Overview of the Technology Units
Technology units are optional subassemblies which are plugged on the inverter. They are used to control or to
parameterize the inverter or to read out current operating values. Technology boxes include the Potentiome-
terBox and the ControlBox which were designed to increase the convenience of operation of the frequency in-
verter, and various bus subassemblies with which frequency inverters can be interfaced with a master control
unit.
The technology boxes differ with regard to their type of protection. Technology boxes with an IP55 type of pro-
tection are allocated to the air-cooled version of the SK 750E while those with an IP66 type of protection are al-
located to the SK 750E inverters with a water cooling.
IMPORTANT
Left / right TU plug-in section
For insertion of the technology units two slots are provided the use of which is
not
optional.
While the left slot is intended for the ControlBox or the PotentiometerBox operating units
exclusively, the right slot is available to any other of the subassemblies. Frequency inverter
control does not allow for using both the PotentiometerBox and the ControlBox simultane-
ously!
IMPORTANT
While the
SK TU2-
…
technology units are available with the IP55 type of protection, the
SK TU2-
…
-
C
meet the requirements for IP66. Still, the functionality and the dimensions of a technology box are
identical irrespective of the type of protection. To ensure IP66,
special provisions
are made, as for
instance the use of coated p.c. boards.
Technology Unit
SK TU2-...
T. of prot.
Description
Data
ControlBox
SK TU2-CTR
Part no. 275130130
IP55
Used to start up, parameterize,
configure and control the fre-
quency inverter.
4-digit, 7-segment LED display,
key pad
ControlBox
SK TU2-CTR-C
Part no. 275170130
IP66
Potentiometer-Box
SK TU2-POT
Part no. 275130060
IP55
Used to control the frequency in-
verter directly, no additional in-
stallation or setting work required
1 potentiometer 0...100 %
1 switch left-0-right
Potentiometer-Box
SK TU2-POT-C
Part no. 275170060
IP66
Profibus module (standard)
SK TU2-PBR
Part no. 275130070
IP55
This option enables the
NORDAC SK 750E to be con-
trolled via the Profibus DP port.
Profibus interface
Baud rate: 1.5 Mbps
Two 5-pole M12 system connec-
tors
Profibus module (standard)
SK TU2-PBR-C
Part no. 275170070
IP66
Profibus module (terminals)
SK TU2-PBR-KL
Part no. 275130065
IP55
This option enables the
NORDAC SK 750E to be con-
trolled via the serial Profibus DP
port.
Profibus interface
Baud rate: 1.5 Mbps
8-pole terminal
Profibus module (terminals)
SK TU2-PBR-KL-C
Part no. 275170065
IP66