2 Mounting and installation
BU 0240 en-US-4920 43
Pos: 175. 16 / Anl eit unge n/ Elek tro nik/F U u nd St arter/ 2. Mo ntag e u nd I nstal lati on/AT EX u nd EAC EX (S K 1xx E, SK 2 00E)/ SK AT X-P OT [SK 1x0 E / SK 2xxE] @ 4\mod_1395840390747_14638.docx @ 123212 @ 5 @ 1
SK ATX-POT
The category 3D variable frequency drive can be equipped with an ATEX-compliant 10 kΩ
potentiometer (SK ATX-POT) which can be used for setpoint (e.g. speed) adjustment on the device.
The potentiometer is used with an M20-M25 extension in one of the M25 cable screw connections.
The selected setpoint can be adjusted with a screwdriver. Due to the detachable cap, this component
complies with ATEX requirements. Permanent operation may only be carried out with the cap closed.
Setpoint adjustment using a screwdriver
SK ATX-POT
wire color
Designation
Terminal
SK CU4-24V…
Terminal
SK CU4-IOE
Terminal
SK 2x0E
Red +10 V reference [11] [11] [11]
Pos: 175. 17 / Anl eit unge n/ Elek tro nik/F U u nd St arter/ 2. Mo ntag e u nd I nst allati on /AT EX u nd EAC EX ( SK 1xx E, SK 2 00E) /IN FORM AT ION (EX) - Brem swi derstä nde [SK 1x0E, SK 2xxE] @ 1\m od_1342605607279_14638.docx @ 34179 @ @ 1
Internal braking resistor "SK BRI4-…"
If an internal braking resistor of type SK BRI4-x-xxx-xxx is used, activate the power limitation for this under all
circumstances ( Section 2.2.1 "Internal braking resistor SK BRI4-…"). Only the resistors assigned to the
relevant inverter type may be used.
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