NORD Drivesystems BU0200 - Manual (Page 62)

2 Assembly and installation
BU 0200 GB-4411 Subject to technical alterations 61
Name Part Number
Approved for
ATEX Zone 22 3D Not approved for
ATEX Zone 22 3D
SK TU4-POT-123-B(-C) 275281110 / (275281160) x
SK TU4-POT-140-B(-C) 275281111 / (275281161) x
SK TU4-PBR-M12(-C) 275281200 / (275281250) x
SK TU4-CAO-M12(-C) 275281201 / (275281251) x
SK TU4-DEV-M12(-C) 275281202 / (275281252) x
SK TU4-IOE-M12(-C) 275281206 / (275281206) x
*Only SK 2x5E
2.10.2.2 Customer Units for ATEX Zone 22 3D
Name Part Number
Approved for
ATEX Zone 22 3D Not approved for
ATEX Zone 22 3D
SK CU4-PBR 275271000 x
SK CU4-CAO 275271001 x
SK CU4-DEV 275271002 x
SK CU4-IOE 275271006 x
SK CU4-POT 275271207 x
SK CU4-24V-123-B* 275271108 x
SK CU4-24V-140-B* 275271109 x
SK ATX-POT 275142000 x
*Only SK 2x5E
The SK 2xxE for Category 3D can be equipped with an ATEX-compliant potentiometer, which can be used
to adjust a setpoint (e.g. speed) on the device. The potentiometer is used with an M20-M25 extension in one
of the M25 cable glands. The selected setpoint can be adjusted with a screwdriver. Due to the removable
screw closing cap, this component complies with
ATEX requirements. Permanent operation may only
be carried out with the cap closed.
Frequency setpoint setting
with a screwdriver
Resistance of the potentiometer 10 kOhm
Wire colours on the
potentiometer
Name Terminal SK CU4-24V* Terminal SK CU4-IOE Terminal SK 2x0E
Red +10V reference [11] [11] [11]
Black AGND / 0V [12] [12] [12] / [40]
Green Analog input [14] [14] / [16] [14] / [16]
*Only SK 2x5E
NOTE: For use of a potentiometer with frequency inverter SK 2x5E a CU4-24V-xxx-B or CU4-IOE
customer unit is required! With the SK 2x0E, this can be connected directly to an integrated
analog input.