Product Description:

The P70530-SDN is a compact stepper drive manufactured by Kollmorgen and supplied within the P7000 Stepper Drives series. Designed as a current-regulated module, it interfaces between low-voltage DC power supplies and two-phase hybrid motors, translating controller step and direction signals into phase currents that advance the rotor. In positioning and speed-index applications, the drive provides an economical way to synchronize motion without closed-loop feedback. This makes it suitable for compact indexing axes, feed mechanisms, and other motion points that rely on a simple pulse command interface.

It operates from an input bus of 20–75 VDC, allowing integration with distributed DC systems. Under continuous duty, the output phase current is limited to 5 Arms, while transient acceleration commands are supported up to 7.1 Apeak per phase in microstepping mode. Command and status wiring uses dedicated ±Enable and ±Step/Dir lines that accept 5 V TTL levels, and a fault signal is available through an open-collector transistor for controller monitoring. The drive also offers 9 configurable inputs rated for 5–24 VDC logic for limit, home, or torque-settle functions. Motor compatibility covers NEMA 17 through 42 frames when coil inductance falls between 2 and 15 mH, and the drive supports rotor frequencies within a 0 to 50 rev/s operating band.

The drive can support up to 300 W of output power before derating, and idle dissipation can be reduced with a programmable hold-current window of 0 to 100% when motion pauses. Lower hold current can help reduce heating during dwell periods while maintaining stable operation in many applications. Resolution is selectable from 200 to 50,000 steps/rev, permitting coarse indexing or fine micropositioning from the same command interface. Within ambient temperatures of 0 to 45 °C, the enclosure surface must stay below a 70 °C chassis threshold. Physical size is constrained to 29 × 111 × 107 mm, and the model is intended for DC installations only.