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The OMDC-MD Plus DC motor controller is a field-programmable closed loop DC drive system employing an advanced velocity-form PID algorithm for accurate and responsive control. The OMDC-MD Plus control system also features a unique, isolated 4 to 20 mA input and output for easy integration with existing process control systems. The OMDC-MD Plus Series DC motor control is ideally suited for metering pump applications by efficiently combining all of the application requirements into a single compact package. The OMDC-MD Plus Series DC motor control system not only accepts a 4 to 20 mA signal to control the pump speed, but it also provides a 4 to 20 mA output signal back to the process control that is proportional to the actual running speed. Both the input and output signals are isolated from each other and from the control itself. The OMDC-MD Plus control also has two field-programmable form C relay contacts that can be set to indicate a wide variety of conditions such as the pump is running, a “fault” condition exists, and many other events.
Temperature: -10 to 45°C (14 to 113°F)
AC Input Voltage: 85 to 265 Vdc
Input Frequency: 50/60 Hz
Overload Capacity: 200% for 1 min
Transducer Signal Input: 0-5 to 0-24 Vdc On-Board Transducer Power Supply: 5 Vdc, 50 mA
4 to 20 mA Input/Output Accuracy: ±1%
OMDC-MD40P-420: 115 W x 58 H x 117 mm D (4.539 x 2.289 x 4.625')
OMDC-MD50P-420: 115 W x 106 H x 117 mm D (4.539 x 4.179 x 4.625')
OMDC-MD50E-420: 140 W x 188 H x 70 mm D (5.530 x 7.4 x 2.75')
NOTE: Speed feedback is required (encoder). Recommended: OMDC-PU-40E (see below).