CHOICE® (DC Motor Controller) CDC300 Series 5 – 150 HP Motor Control Standard Features

(NOT FOR NEW DESIGN)

Standard Features

Reconnectable for 230 or 460 VAC 3 phase line input
Hall effect sensor to isolate armature current feedback
10 megohm impedance isolation for armature voltage feedback
Independently adjustable 1 to 60 second Linear Accel/Decel
Electrically isolated power modules rated 1400 Volts PIV and 1000 Volts/microsecond DV/DT
Semiconductor fuses for power circuit protection
R-C networks for A.C. line transient suppression
10 Amp internal field supply with provisions for interfacing an optional external field supply to the field loss circuit
10 Amp internal field supply with provisions for interfacing an optional external field supply to the field loss circuit
Foldback current limit to allow a 1 minute overload and then foldback to 112% of the current range selected
Over Current trip when 112% of the current range selected is sustained for 5 minutes
Speed feedback is jumper selectable for Armature Voltage, D.C. Tachometer Voltage (7, 50, or 100 V/1000 RPM), or Digital Encoder (300 PPR)

Tachometer feedback circuit is insensitive to input polarity
A +12 VDC, 50 mA available for encoder power supply
Summing input for auxiliary speed signals with on board trim pot for scaling and jumper selection for polarity
Terminal strip access to Accel/Decel output, Velocity Loop output and Current Loop input for versatile control functions. Inner current loop for responsive and precise control of motor torque and speed.
Insensitive to phase rotation of A.C. line input
Status LEDs for Run, Zero Speed, Jog, and Foldback
115 VAC logic for pushbutton operator interface
Zero Speed logic for ramp to stop and anti-plugging protection
Jog Delay circuit to allow rapid jogging without de-energizing the armature contactor to give longer contact life
Armature current ranges are jumper selectable for each model to match motor armature current
High frequency multi-pulse trigger circuit for reliable SCR gating
Ribbon cable connector interface for Drive Circuit Monitor DCM100-000 for easier setup and troubleshooting.