Parker HI Drive Servo Drives

Technical Dossier

Product Details And Specifications

Parker HI Drive Series: Comprehensive Module Range and Technical Overview

The Parker HI Drive series is a family of single- and multi-axis AC servo drives engineered by Parker Hannifin for high-performance motion control in continuous-duty industrial environments. Deployed across chemical processing plants, nuclear facilities, oil refineries, paper mills, and automotive assembly lines, the HI Drive platform occupies a critical position in global heavy industry automation infrastructure. Its modular architecture supports centralized and distributed control topologies, making it a standard reference drive in both legacy DCS installations and modern motion-centric machine designs. The series is rated for demanding duty cycles and is compatible with Parker's range of brushless servo motors, including the SM, NX, and MPP families.

The Evolution of HI Drive Architecture

The HI Drive platform was introduced by Parker Hannifin as a successor to earlier servo amplifier families, consolidating single-axis and multi-axis control into a unified hardware architecture. Early variants used analog command interfaces (±10 V) and incremental encoder feedback, targeting standalone CNC and packaging machine applications. As fieldbus adoption accelerated in the 1990s and 2000s, Parker extended the HI Drive range with digital communication options including CANopen, SERCOS II, and EtherCAT, enabling tight integration with PLCs and motion controllers from Siemens, Rockwell, and Beckhoff.

The HID prefix denotes the core HI Drive product line. Suffix characters encode axis count (S = single, D = dual), current rating, and option packages. Mid-generation revisions introduced regenerative braking modules and enhanced EMC filtering to meet IEC 61800-3 Category C2 requirements. Later variants added safe torque off (STO) functionality compliant with IEC 62061 SIL 2, responding to evolving machinery safety directives in the EU and North America.

The HI Drive series has entered the mature/end-of-life phase. Parker Hannifin has transitioned new designs toward the Compax3 and ViX series for single-axis applications, and the ACR9000 platform for multi-axis coordinated motion. However, the installed base of HI Drive units in legacy plant environments remains substantial, and long-term maintenance support — including spare drive replacement, repair, and firmware archiving — remains commercially active through specialist distributors.

HI Drive Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly referenced models within the Parker HI Drive product family. Units are classified by axis configuration and current/power rating.

Single-Axis Drives (HID_SS)

• HID2SS: Single-axis HI Drive, 2 A continuous output current, ±10 V analog command interface.
• HID3SS: Single-axis HI Drive, 3 A continuous, incremental encoder feedback, RS-232 configuration port.
• HID5SS: Single-axis HI Drive, 5 A continuous output current, analog and step/direction command modes, DIN rail mount.
• HID8SS: Single-axis HI Drive, 8 A continuous, enhanced heat dissipation baseplate, suitable for 400 W–750 W servo motors.
• HID12SS: Single-axis HI Drive, 12 A continuous, supports Parker SM and NX series motors up to 1.5 kW.
• HID20SS: Single-axis HI Drive, 20 A continuous, regenerative braking resistor interface, 3-phase 230/400 VAC input.
• HID30SS: Single-axis HI Drive, 30 A continuous, high-inertia load compensation, extended I/O terminal block.
• HID50SS: Single-axis HI Drive, 50 A continuous, cabinet-mount format, suitable for 5.5 kW–7.5 kW servo applications.

Dual-Axis Drives (HID_DS)

• HID2DS: Dual-axis HI Drive, 2 A per axis, shared DC bus architecture, compact panel footprint.
• HID3DS: Dual-axis HI Drive, 3 A per axis, independent axis enable inputs, CANopen option available.
• HID5DS: Dual-axis HI Drive, 5 A per axis, synchronized motion via master-slave encoder following.
• HID8DS: Dual-axis HI Drive, 8 A per axis, shared regenerative braking resistor, 400 VAC three-phase input.
• HID12DS: Dual-axis HI Drive, 12 A per axis, SERCOS II interface option, suitable for coordinated gantry axes.
• HID20DS: Dual-axis HI Drive, 20 A per axis, high-power dual-axis format, requires external EMC line filter.

Accessory & Option Modules

• HID-REGEN: External regenerative braking resistor assembly for HI Drive high-inertia applications.
• HID-CANOPT: CANopen communication option card, field-installable, DS402 drive profile compliant.
• HID-SERCOS: SERCOS II fiber-optic interface module for HI Drive integration with SERCOS-based motion controllers.

Sourcing Hard-to-Find & Obsolete HI Drive Parts

DriveKNMS maintains a dedicated inventory program for Parker HI Drive units that have been discontinued or placed on restricted availability by Parker Hannifin. As the HI Drive series has entered its end-of-life phase, OEM channel availability for specific current-rated variants — particularly the HID5SS, HID8SS, HID12DS, and HID20DS — has become inconsistent. DriveKNMS sources verified surplus stock, factory-refurbished units, and tested pull-out drives from decommissioned plant equipment.

All HI Drive units offered by DriveKNMS are accompanied by full traceability documentation, including source records and pre-shipment test reports. For facilities operating Parker HI Drive systems under long-term maintenance contracts or asset management programs, DriveKNMS provides multi-unit reserve stock agreements to ensure continuity of supply for critical spare parts over 3–10 year maintenance horizons.

Quality Control for the HI Drive Range

Each Parker HI Drive unit processed by DriveKNMS undergoes a structured test protocol designed for the specific electrical and firmware characteristics of the series. The test sequence includes: incoming visual inspection for physical damage to the power stage, gate driver board, and control PCB; DC bus capacitor ESR measurement to assess capacitor aging; power-on functional test under no-load conditions with verification of status LED sequence and fault register readout via RS-232; closed-loop servo test using a matched Parker servo motor on a dynamometer bench, verifying velocity loop bandwidth, position accuracy, and encoder signal integrity; and output current waveform analysis across all three phases to confirm IGBT switching symmetry.

For dual-axis HID_DS variants, both axes are tested independently and simultaneously to verify shared DC bus behavior under concurrent load. Firmware version is recorded and archived. Units with non-standard firmware revisions are flagged and documented prior to shipment.