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Two drives families promise power without complexity
Parker Hannifin has announced two new series of mid-range AC inverter drives for applications ranging from simple fan/pump and conveyor controls, to multi-drive production lines requiring speed-following and winder calculations.
The new AC15 and AC20 drives fit between Parker’s existing AC10 and AC30 ranges. They provide functions such as onboard Web servers, SD card slots, a fire mode, two independent PID loops and multi-stage sequencing functions, but they avoid the extra cost of “system drive” functions that are not always needed.
The AC15 series are compact, low-cost drives for open-loop motor control applications. They are backwards-compatible with the AC10 series and its predecessors, and offer Safe Torque Off to SIL2/PLd and Ethernet communications as standard. The drives are available in 230V single-phase, 230V three-phase and 400V three-phase versions, with power ratings from 0.37–30kW. They have high I/O counts and configurable internal block diagrams, and support both induction and permanent magnet AC motors.
The AC20 series adds more functions and spans power ratings from 1.5–180kW in 230V single-phase, 230V three-phase and 400V three-phase versions. The drives support both EtherNet/IP and Profinet IO communications via an onboard Ethernet port. Further fieldbus options are supported via a communications option slot.
Expansion options include low-cost encoder speed feedback cards and general-purpose I/O expansion cards. These cards can be fitted in either of two option slots, allowing closed-loop motor control with simple speed-following, an open-loop drive with a high I/O count, or a combination of the two.
The AC20 also adds an alphanumeric onboard display, winder functions and more than 100 programmable internal wiring connections.
Both new series of drives are programmed using Parker’s DSELite software which allows programming using an intuitive block diagram approach, with each block representing a drive function. These blocks can be linked to each other using a simple “wiring” system. DSELite has been upgraded to allow programming and real-time online monitoring of applications via Ethernet when used with the new drives, and now includes an oscilloscope function with a data-logging facility.
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