NORDAC SK 750E manual
34
Technical design subject to change
BU 0750 GB
3.2.3 PotentiometerBox
(SK TU2-POT, Part no.: 275130060)
(SK TU2-POT-C, Part no.: 275170060)
The PotentiometerBox can be used to control a variety of functions. Se-
lection can be done in parameter P549. An infinitely variable potentiome-
ter and a three-stage switch to select clockwise or counterclockwise rota-
tion or Stop respectively are integrated in the module as operating ele-
ments. The latter is a control switch capable of applying or removing an
enable signal. The basic configuration allows for direct control of the out-
put frequency in a range between the minimum (P104) and the maximum
(P105) frequency.
Note:
Control of the frequency inverter via the PotentiometerBox
presupposes a) that the >Interface< parameter P509 has
been programmed to "control terminals or keyboard" (P509 =
0), and b) that the inverter has not previously been enabled
via the control terminals (custom interface).
LED
Description
green LED [ ON ]
If steady, signals that a mains voltage is being applied. If flashing at a growing
code-based rate while operation is in progress, it shows an increasing overload at
the frequency inverter output.
red LED [ ERROR ]
Signals an error applied by flashing at the rate which corresponds to the number
code of the error.
3.2.4 DeviceNet module
(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.
It is possible to connect up to 64 user devices into a single bus system.
The transmission rate (125, 250, 500 kbps) and the bus address can
be set with rotary coding switches or by setting the applicable parame-
ters accordingly.
DeviceNet status LEDs
MS (red/green)
Module status
NS (red/green)
Network (bus) status
Subassembly status LEDs
DS (green)
Subassembly status
DE (rot)
Subassembly error
NOTE:
For more detailed information please refer to the
BU 0080
Operating Instructions or contact the
frequency inverter supplier.
