Variable Frequency Drive Sequencer
Digital Power & Motion's Sequencer is designed to control a network of Variable Frequency Drives. Generically speaking though, it is
simply a custom Programmable Logic Controller with inputs, outputs, network ports and a user interface. This
version of the controller is characterized by these specifications, though we can make
your's different:
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User Interface
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128 x 64 blue graphic LCD display with white LED backlight.
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Rotary encoder with momentary push switch for user input. Inspired by Apple's Video
iPod's user interface.
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Hierarchical menu system for intuitive access to process variables and parameters.
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Network Interfaces:
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Fully isolated CAN port with 24VDC output and shield connection. Inspired by the
DeviceNet physical layer. Includes automatic node address assignment - no setting of
address switches or jumpers is necessary.
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Second, non-isolated CAN port for co-located SCADA controllers and/or monitors.
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USB device port for access to parameters, variables, event histories, etc. Also useful
for program updates.
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Miscellaneous:
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16-bit Digital Signal Processor for high throughput computing.
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Real time clock with supercapacitor backup never requires battery replacement.
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Non-volatile memory for storage of parameters and event history.
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Power Input: 100-260VAC 50/60Hz single phase universal input with resettable fuse.
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Environmental: -20 to 70 °C.
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Safety Agency Approval: UL 508 approved.
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Heavy duty pluggable terminal blocks keyed for proper placement.
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Polycarbonate graphic overlay with display window customized to the "look and feel" of
Customer's product.
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UL rated heavy duty plastic enclosure.
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Controller LED status indication through multiple flash codes.
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5VDC & 24VDC power LED status indication.
Watch this User Interface Demonstration video to see the hierarchical menu system in
operation!
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