The 1395-B79-C5-P12 Digital DC Drive with a standard 200HP Contactor and Digital Reference Adapter Board Option is a microprocessor-based DC digital drive by Allen-Bradley, which provides control and direction of industrial base servo motors. The 1395-B79-C5-P12 is a drive in the Allen-Bradley 1395, 460V AC, 2 to 200HP, regenerative drive series. It has an AC, 3-phase operating voltage range of 150 – 460V AC at 50/60Hz, and a voltage tolerance of -10%/+10%. The drive also has an operational input power range of 1.5KVA to 600KVA, and an output power of 200HP, at 500V DC output voltage. It has a field output range of 240 to 300V DC, with a 20A field current, and it has a field control speed range of 6 to 1, with an encoder. The 1395-B79-C5-P12 drive has a digital current, velocity, and configuration control, and it has a programmable current output of 150% output boost for 1 minute, 200% for 10s, and 260% for 5s.

The 1395-B79-C5-P12 DC drive provides speed control using the encoder with a 0.01% speed setting over a speed range of 10:1, and a 0.001% of speed setting over a 100:1 speed range. The drive has a feedback encoder with a 90° Quadrature and 50% ± 10% Duty Cycle, and it also has external inputs and outputs. It has a Digital Reference Board (Option Port A), with a single digital reference input, which produces digital velocity command, and it has 10 programmable 24V DC inputs, which provides external controls via push buttons, relays, and switches. The digital reference board also has 5 programmable solid-state outputs, 2 programmable analog inputs, and 2 programmable analog outputs which convert the drive’s signal to -+10V DC analog output via an 11-bit Analog-to-Digital converter. The 1395-B79-C5-P12 can operate at a temperature of 0-55°C (32-130°F), at 5-95% non-condensing humidity, and it can function without de-rating at a maximum altitude of 1000m.