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Where should I connect the SZ1RV1202 potentiometer (pot) to the ATV variable speed drives?

The potentiometer part number: SZ1RV1202 must be connected to one of the 0...10 V analog inputs on ATVxxxx range variable speed drives:

ATV12 (or ATV11): the whole resistance of the potentiometer between the +5 V and 0 V terminals, and the variable point on terminal AI1
ATV21: the whole resistance of the potentiometer between the PP and CC terminals, and the variable point on terminal VIA
ATV212: the whole resistance of the potentiometer between the PP and CC terminals, and the variable point on terminal VIA
ATV312 (or ATV31): the whole resistance of the potentiometer between the +10 and COM terminals, and the variable point on terminal AI1
ATV320: the whole resistance of the potentiometer between the +10 and COM terminals, and the variable point on terminal AI1
ATV61 and ATV71: the whole resistance of the potentiometer between the +10 and COM terminals, and the variable point on terminal AI1+ , keeping the link AI1- to com (fitted as default).
ATV630 and ATV930: the whole resistance of the potentiometer between the +10 and COM terminals, and the variable point on terminal AI1
ATV340: the whole resistance of the potentiometer between the +10 and COM terminals, and the variable point on terminal AI1

Example of connection:

ATV series VSD potentiometer connections
The value of this potentiometer, part number SR1RV1202, is 2.2 kΩ (k ohms).

For most Altivar drives a variable resistor between 1kΩ and 10kΩ is permissible

Alternative potentiometer
Complete potentiometers are also available in the Harmony 5 range (Plastic insulated)
1kΩ XB5AD912R1K
4.7kΩ XB5AD912R4K7
10kΩ XB5AD912R10K
Complete potentiometers are also available in the Harmony 4 range (Metal)
1kΩ XB4BD912R1K
4.7kΩ XB4BD912R4K7
10kΩ XB4BD912R10K