NORD Drivesystems BU0750 - Manual (Page 35)

3.2 Overview of Technology Units
BU 0750 GB-3311 Subject to technical amendments 35
3.2.3 PotentiometerBox SK TU2-POT
(SK TU2-POT, Part No.: 275130060)
(SK TU2-POT-C, Part No.: 275170060)
The PotentiometerBox can be used as a control unit for various
functions. Selection can be carried out in parameter P549. An
infinitely variable potentiometer and a three-position switch for
selecting CW/CCW operation or Stop are integrated in the module for
operation. This is a control switch that can generate an enable signal.
The factory setting enables direct control of the output frequency in
the minimum (P104) and maximum frequency (P105) ranges.
Note:
The frequency inverter can only be controlled via the
PotentiometerBox, if parameter P509 >Interface< is set to
"Control terminals or keyboard" (P509 = 0) and has not
previously been enabled via the control terminals
(customer unit).
LED Description
Green LED [ON] The green LED indicates that the mains voltage is present and operational, while
a flashing code that increases in speed shows the degree of overload at the
frequency inverter output.
Red LED [ERROR] Indicates actual error by flashing with a frequency according to the number code
of the error.
3.2.4 DeviceNet Module SK TU2-DEV
(SK TU2-DEV, Part No.: 275130090)
(SK TU2-DEV-C, Part No.: 275170090)
DeviceNet is an open communications profile for distributed
industrial automation systems. It is based on the CANbus system.
Up to 64 participants can be linked to a single Bus system.
The transfer rate (125, 250, 500 kBit/s) and the Bus addresses are
set using rotary coding switches or the applicable parameters.
DeviceNet status LEDs
MS (red/green) Module status
MS (red/green) Mains (bus) status
Module status LEDs
DS (green) Module status
DE (red) Module error
NOTE:
Detailed information can be obtained from the operating instructions BU 0080 or contact the
supplier of the frequency inverter.