NORD Drivesystems BU0300 - Manual (Page 29)

2 Assembly and installation
BU 0300 EN Subject to technical alterations 29
2.8.2.1 ATEX potentiometer
(SK ATX-POT, Part. No. 275142000)
The 3D category SK 300E can be equipped with an ATEX-conform potentiometer which can be used for
setpoint adjustments (e.g. speed) on the device. The potentiometer is inserted in one of the M20 screw
connections.
The selected setpoint can be adjusted with a screwdriver. This component meets the ATEX requirements due
to the screw-on sealing cap. Continuous operation is only permitted with closed sealing cap.
Setpoint adjustment
with a screwdriver
Resistance of potentiometer 10 kOhm
Wire colour on potentiometer Name Terminal
Red +10V [11]
Black AGND /0V [12]
Green
Analog input+
Analog input 1
[14]
NOTE: When using a potentiometer with the frequency inverter SK 300E,
a customer unit Basic I/O or Standard I/O is always required!
Example assignment for a Basic I/O (SK CU2-BSC):
Reference voltage +10 V (max. 10 mA) [11]
AGND, 0V [12]
Analog input - [13]
Analog input + [14]
Digital input 2 [Enable right] [22]
Digital input 3 [Enable left] [23]
Digital input 4 [Parameter set switching] [24]
Supply voltage +15 V (max. 100 mA) [42]