Single-turn absolute encoder at 18-bit resolution
The SH30553P1AF4100: The Hiperface DSL interface is a single-cable encoder protocol — it carries position feedback and motor temperature data over the same twisted pair as the drive communication, eliminating a separate encoder harness. Singleturn absolute means the position is absolute within one electrical revolution; after a power cycle the drive knows shaft angle immediately without a homing run, but it does not retain position across multiple turns. At 18 bits that is 262144 counts per revolution, which sets the position loop resolution the drive can achieve. The encoder rating is IP65 on the motor body, same as the shaft bushing.
Torque and speed across the three voltage classes
The motor produces different nominal torque depending on supply voltage and phase count: 1.1 N.m nominal at 230 V single-phase drops to 0.81 N.m at both 400 V and 480 V three-phase — the lower torque at the higher voltages reflects the motor being wound for the 400/480 V class with a corresponding increase in speed. Nominal speed scales from 4000 rpm to 8000 rpm to 9000 rpm across the same three conditions. Continuous stall torque is 1.05 N.m across the full 115–480 V three-phase range, and peak stall torque is 3.5 N.m for up to 3 seconds at any voltage in that band — a 3.3:1 peak-to-continuous ratio that defines the short-term overload budget available during acceleration.
IP65 and natural convection in the deployment context
IP65 on both the motor body and shaft bushing (conforming to IEC 60034-5) means the housing is dust-tight and protected against water jets — the shaft bushing seal is the critical point for encoder and bearing longevity in washdown or dusty environments. Natural convection cooling means the motor does not have a fan; thermal performance is entirely passive, so the 130 °C copper hot temperature limit and the 680 W continuous power rating assume adequate airflow around the housing. The 55 mm square flange and 203 mm stack length define the mounting envelope in the panel or machine frame.
Current and power sizing for drive selection
The maximum RMS current is 6.5 A, which is also the 3-second peak current rating — the drive must be sized to supply at least that current without voltage collapse during acceleration. The sizing reference in the data is SH30553P, which ties this motor to the Schneider Lexium or similar SH3-compatible drive family for parameter auto-tune. Stator resistance of 10.4 Ohm and inductance of 13.02 mH set the electrical time constant the drive uses to tune current regulation loops. Back EMF constant is 41 V/krpm at 20 °C, which determines the generated voltage the drive must handle when decelerating a spinning load back into the drive's DC bus.