Product Description

Sprint Electric

JL/X Series

AC Control

Fully digital drive system providing 45kW - 975kW output power to control AC slip ring motors.


With 2 Quadrant and 4 Quadrant models, you can use the JL/X to control AC slip ring motors up to 975kW.

The JL/X series AC Drive is a fully digital drive system providing 45kW - 975kW output power to control AC slip ring motors. The JL/X is built on the same platform as the PL/X and provides identical controls. The JL/X is designed for retrofit applications on cranes, material handling, hoists, pumps, compressors & conveyors.



Ideal Upgrade For Cranes & Hoists

Upgrading your AC-slip ring motor application usually involves replacing the motor with a new motor and drive combination (expensive), or modifying the existing motor to allow a retrofit standard AC Drive. For users wishing to maintain the high starting torque of AC slip ring motors, you can simply bolt on the JL/X AC Slip-Ring Drive, which is designed to work seamlessly with AC slip ring motors. The JL/X provides full digital control and maintains the classic torque-speed curve so critical for lifting applications.

Compact & Versatile Design

Available in 2Q (single direction) and 4Q (fully regenerative) variants, the range comprises 3 compact chassis sizes with models rated at 150% overload (standard) or 250% overload (high duty). The JL/X boasts an extremely versatile operating input voltage range of 12V - 500VAC as standard. Options are available for 600V and 690VAC input.

Easy to Configure

All models include a 40-character alphanumeric backlit display that makes it easier to quickly navigate through an extensive range of software functions. The JL/X is fitted with 17 digital inputs and 8 analogue inputs as standard, with 7 digital outputs and 4 analogue outputs.

The JL/X is fully configurable by the user and comes equipped, as standard, with a comprehensive set of function blocks that allow easy set-up and control of AC Slip Ring motors. The JL/X also includes PL Pilot+, a windows based, configuration and monitoring software package. The JL/X is also available with powerful inbuilt smart automation. Drive.Web distributed control technology uses Ethernet and powerful graphical tools to provide robust Programmable Peer Control (PPC) for drives and systems. Options for field bus systems include Ethernet, Profibus, CANbus, Modbus, DeviceNet and many more. All frame sizes are CE approved.


Power Configuration

JLX Four Quadrant Regenerative

JL Two Quadrant Non- Regenerative

Fully controlled variable field supply

Armature Voltage

V armature = Vac x 1.2

AC Supply Voltage (VAC)

Main 3 phase 50-60Hz:

12 to 500Vac +/- 10%

600/690Vac options for 650A - 2250A

Auxiliary 3 phase 50-60Hz:

100 to 500Vac +/- 10%

600/690Vac options for 650A - 2250A

Control 1 phase (50VA) 50-60Hz:

110 to 240Vac +/- 10


Interline device networks

High energy MOV's

Instantaneous over-current

Motor over-temperature

Thyristor stack over-temperature

Mains supply phase loss

Mains synchronisation loss

Speed feedback failure

Stall protection

Standstill logic

Thyristor 'trigger' failure

Digital output short circuit

Analogue Inputs

8 total (resolution 2.5mV+sign)

All configurable

All have programmable thresholds and 4 voltage ranges

+/- 5/10/20/30V

All inputs are over voltage protected and can also be utilized as digital inputs

Analogue Outputs

4 total (resolution 2.5mV+sign)

1 armature current output

3 configurable

All outputs are short circuit protected

Digital Inputs

17 total

All configurable

Digital Outputs

7 total (24V logic 350mA total)

Short circuit protected

Over temp and over voltage protected

All configurable

Standard Software Functions

Full suite of centre winding macros

Motorised pot simulator with memory

2x PIDs (undedicated)

2x Summers (undedicated)

2x Filters (undedicated)

Delay timer

Current Profiling

Spindle Orientation

Jog/Crawl functions

Dual motor swap


Linear or S ramp

Slack take up

Batch counter

Draw control

Auto self-tune current loop - 3 user programmable drive configurations

Alarm Status

First fault latched and automatically displayed.

Fault automatically saved at power off


All analogue input voltages

All digital input states

All analogue output voltages

All digital output states

Tachogenerator voltage

Motor armature current (amps)

Motor field current (amps)

Motor armature volts

Output power

AC supply volts

Field Configurations

Fixed current

Fixed voltage

Field weakening

Delayed quenching - Standby field value - Field economy


Ambient operating temperature

0-40 ̊C (2050A 2250A 35°C) - 25 to +55 ̊C storage

Steady State Accuracy

0.01% Encoder feedback with digital reference.

0.1% Analogue tachogenerator feedback

2% Armature voltage feedback

0.01% Encoder + tach, encoder + AVF or encoder only feedback

Maximum encoder frequency 100KHz


CE marked to EN50178: (low voltage directive)

EN50082-2:1995: Immunity industrial environment

EN50082-1:1997: Immunity residential commercial and light industry

EN50081-2:1993: Emissions industrial environment (EN55011 Class A)

EN50081-1:1992: Emissions industrial environment (EN55022 Class B)

UL and cUL listed 12-630Amps

UL and cUL pending 650-2250Amps

Speed Feedback

Analogue tach


Armature voltage

Encoder + Armature volts

Encoder + Analogue


Rs232 as standard

Profibus available

DeviceNet available

CC-link available

EtherNet/IP available

Modbus available

CANopen available

drive.web Ethernet available


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