Isolation amplifier for providing isolated armature current feedback

Impedance isolation, 5 Meg Ohms, for armature voltage feedback isolation

AC line contactors for safety disconnect in stopped condition

Digital logic for sequencing Start, Stop and Jog operation for dry circuit switching of line contactors to extend contactor life

AC line fuses for circuit protection

Independently adjustable linear Accel and Decel, 1 to 60 seconds

Jumper selectable armature voltage, tachometer voltage
(7 to 50 VDC/1000 RPM), or encoder (60 or 300 PPR) feedback

Encoder power supply, +12 VDC @ 100 mA, terminal strip accessible

Tachometer and encoder feedback are insensitive to direction of motor rotation

Inner current loop for fast stable response

Hard firing, high frequency, multi-pulse gating circuit for reliable SCR firing over a wide range of speed and load characteristics

Armature current range selectable by jumper

Velocity or torque mode operation selectable

Built-in Torque/Taper control function with provision for external torque pot.

Jog Delay to allow rapid jogging without de-energizing the line contactor to extend contactor life

Internal jogging pot. for adjustment of Jog Speed

Jumper selection to allow summing input to be clamped or not clamped in the Jog Mode

Auto Mode for 4 to 20 mA input for process

Summing input with on board trim pot. to allow voltage summing with speed reference

Terminal strip access to Accel/Decel output, Velocity Loop output and Current Loop input for systems interface

Depluggable signal input terminals for all customer connections

Dynamic braking (models with D.B. only)

Power On/Off switch (enclosed models only)

Membrane switch control panel for Start, Stop and Jog pushbuttons (enclosed models with control panel only)