NORD Drivesystems BU0930 - Manual (Page 6)

Supplementary manual SK OPR1-AUM for NORD frequency inverters
6 Subject to technical amendments BU 0930 GB-0612
SK CU2-STD (for SK 300E)
Digital
input Parameter Factory setting Recommended
setting Comments
DIN 1 P420 {13} "Thermistor" {13} "Thermistor" Monitoring of motor thermistor
DIN 2 P421 {01} "Enable right" {01} "Enable right"
DIN 3 P422 {02} "Enable left" {01} "Enable right"
with (P428) "Automatic start": {ON}
CAUTION: do not parameterise to
{mains voltage immediately}!
DIN 4 P423 {08} "P. set Bit 0" {05} "Fixed frequency 2" Value FF2: E.g.: {6.0} in (P430)
DIN 5 P424 {04} "Fixed frequency 1" {04} "Fixed frequency 1" Value FF1: E.g.: {55.5} in (P429)
NOTE
The listed parameters only relate to the digital functions of the frequency inverter. This
supplementary manual does not deal with further settings (e.g. motor data, basic
parameters).
In order to prevent control malfunctions it is recommended that the parameter (P509)
"Interface" is changed to the function {01} "Control terminals only".
4 Operation
Switching between the operating modes (I - 0 - II) is carried out with the aid of the key switch. Control of the
frequency inverter with the "ON" button of the control box is only possible in the operating mode "II"
(maintenance). On activation of the button, the frequency inverter is enabled with the frequency set in (P430
or P465 [-02]). When the button is released, the drive unit is shut down again.
Switch positions Name Function Description
inoperable
No function
FI control "Off" Control of the frequency inverter is not
possible.
The enable button for "jog mode" has
no function.
normal
Normal operation
Start-up of the FI with
"mains on" The FI is automatically enabled with
"mains voltage on" with the frequency
set in (P430 or P465 [-01]).
The enable button for "jog mode" has
no function.
maintenance
Maintenance mode
Control of the FI via
the control box On activating the enable button of the
control box the drive unit operates with
the frequency set in (P430 or
P465 [-02]).
NOTE
The prerequisites for the mode of functioning described above are the correct connection of
the frequency inverter and the parameter recommendations specified in Section 3.