0.57 kW CT servo for SINAMICS S120 racks
The 1FK2204-5AK01-0MB0 is a SIMOTICS S-1FK2 CT (compact, torque) servo motor from the 1FK2 family, specified for use with SINAMICS S120 drive line-ups via the DRIVE-CLiQ M17 interface on the motor side. It delivers PN = 0.57 kW at nN = 6000 rpm on a 380-480 V bus and PN = 0.75 kW at nN = 3000 rpm on a 200-240 V bus, with a standstill torque M0 = 2.4 Nm — the kind of low-inertia rating that fits high-dynamic positioning axes rather than long-hold torque work. The shaft is a plain cylindrical D19 x 40 mm and the housing carries IP65, which is the rating the panel builder actually relies on when the motor sits inside a machine cabinet near coolant splash or oily ambient air — sealed against jets, not against full immersion.
Encoder, connector, and current ripple
Position feedback is an absolute encoder AM22DQC at 22-bit single-turn plus 12-bit multi-turn, wired in over the DRIVE-CLiQ M17 plug — that resolution is what lets the S120 close position loops without an external measuring system on most machine axes. The power connector is sized M17 and the encoder interface is locked to a DRIVE-CLiQ plug, so the motor side of the cable harness is keyed and cannot be cross-mated with the older resolver-type 1FK2 variants — confirm the mating cable set before pulling a spare out of the cabinet. The variant suffix locks the current controller pulse pattern to 8 kHz / 62.5 µs, which is the bandwidth the drive commissioning engineer sets the S120 power block to when commissioning this exact motor — running a different kHz setting changes the torque-ripple behaviour and the motor's thermal headroom.
Orderability and the MRO picture
Lifecycle stage is recorded as current and the product status is Active, so the 1FK2204-5AK01-0MB0 is still in normal Siemens production and the BOM line is not at end-of-life risk on the official record. The product is classed as made-to-order — manufactured per the configuration and not returnable for credit — which is the standard handling for 1FK2 servo motors and means stocking a critical spare is a more reliable posture than relying on a fast factory build. Substance-compliance record covers RoHS since 01-07-06 and REACH Art. 33 candidate-list disclosure, which is the documentation an EU-bound machine builder needs in the technical file for this motor variant. One motor per carton at 452 x 250 x 267 mm packaging is the shipping footprint to budget against when planning a critical-spare holding slot on the shelf.