Manual

021-DRC Rev A DRC User Manual 6

DRC Valve Controller

Physical Description

There are PWR LED and OUTx LEDs. For DRC-4, there are 5 LEDs. The PWR LED

is green when the applied voltage is within the operating range.

OUTx LEDs indicate current output for a given channel. The LEDs are yellow and the

brightness will vary with the output current.

In the case of a fault the LEDs will flash red with a flash code. It will continue to flash

until clearing faults by moving the command signal out of active range or cycling the

power. See Fault Status for details.

The DRC communicates with the Graphical User Interface through the USB port.

When connected to a PC, the DR controller is recognized as a USB device with or

without power supply. However, it must be powered when configuring the settings.

User Interface

The DRC has a number of internal settings.

Users can open the Graphical User Interface to view, make changes and save the settings in a data file which can

be uploaded to any DRC controller.

The Hand Held Interface can also be used to view and make changes, but this device does not have the capability

to save the settings in a data file. The programmer, cable and adapter are self-contained which makes the HHI a

viable alternative for field work.