What the R88D1SN20FECT is and where it sits
The Omron R88D1SN20FECT is a 1S-series servo drive rated 2 kW with a 6.5 A output stage, built to amplify low-level command pulses into the three-phase power that runs a matched brushless servo motor on a motion axis. It is listed as compatible with three specific R88M-1-series servo motors — the R88M-1L2K030C, R88M-1M2K020C, and R88M-1M2K010C — which sets the motor-side fit: any BOM line for that drive should be tied to one of those three rotor/stack combinations and not a generic 2 kW motor.
Ratings, bus, and the operating envelope
Main bus input is three-phase AC, 323 V minimum to 504 V maximum, giving the drive headroom for 400 V and 480 V class supplies without an external step-up or step-down transformer. Control power runs from a DC 22 V to 26 V rail, so the logic side keeps running through a brown-out on the main bus long enough to log the fault and park the axis cleanly. Continuous output of 6.5 A at 2 kW matches a 3 kW low-inertia or a 2 kW medium-inertia motor in the 1S family — the drive is sized to deliver rated shaft power without thermal foldback on a default 4 kHz switching frequency, with the usual derating curve applying above the rated ambient.
Panel footprint and thermal headroom
The chassis is 90 mm wide, 180 mm tall, and 225 mm deep — a footprint that drops straight into a standard 1S-series cabinet cut-out alongside the rest of the rack and leaves the usual 40 mm of clearance above and below for convective airflow. IP20 means the drive goes inside the cabinet, not on the machine frame: the panel builder supplies the enclosure rating, the cable glands, and the fan/filter package that handles dust and washdown exposure — the drive itself only survives finger contact and vertical drip. Operating ambient is 0 °C to 55 °C, so the cabinet cooling budget assumes a warm enclosure interior; above 40 °C the continuous output derates per the published curve, which is the normal motion-cabinet design constraint and not a fault condition.