Parker EX Series User Manual (English)

Questions and Answers:

N
Nathan BaldwinJul 28, 2025
What to do if Parker EX is getting too hot?
- J
  Janice BondJul 28, 2025
  If your Parker Engine is becoming unusually hot, it could be overloaded or the rotation speed might be too low. Check the motor's current and operating cycle. Also, verify if the mounting surface provides enough heat dissipation and isn't itself a heat source. High friction in the machine could also be a factor. Test the motor current both with and without a load. Ensure the motor doesn't have thermal insulation and check for brake friction when the brake power is on.
S
Scott PattersonAug 1, 2025
Why Parker Engine is not starting?
- T
  Timothy AllenAug 1, 2025
  If you're having difficulty starting your Parker Engine or keeping it running, several factors could be at play. Start by checking the fuses and the voltage at the terminals, as there might be an overload or jammed bearings. Inspect the load current. Ensure the power supply to the brake is at +24 V ± 10 % and that its polarity is correct. Check any thermal protection, its connection, and its setting in the drive. Finally, examine the servomotor insulation, performing hot and cold measurements if necessary. The minimum insulation resistance should be 50 MΩ under a max. 50V DC between the phase and casing, thermal protection and casing, brake coil and casing, and resolver coils and casing.
J
Jason JonesAug 5, 2025
How to fix vibrations in Parker EX Engine?
- L
  Lindsey HooperAug 5, 2025
  To address vibrations in your Parker Engine, begin by inspecting the encoder and tachometer connections, as well as the earth connections and the earthing of the earth wire. Check the servo drive speed loop setting, tachometer screening, and filtering. Ensure the stability of the secondary voltages. Lastly, verify the rigidity of the frame and motor support.
D
Derrick WrightAug 10, 2025
Why is my Parker Engine so noisy?
- A
  Amy IbarraAug 10, 2025
  There could be several reasons why your Parker Engine is excessively noisy. It might be due to unsatisfactory mechanical balancing, friction from the brake (possibly mechanical jamming), a defective coupling, loosening of parts, or poor adjustment of the servo drive or position loop. Check the rotation in an open loop to diagnose the issue.
M
Mark RivasAug 14, 2025
What to do if Parker Engine motor is racing?
- J
  Joshua RobinsonAug 14, 2025
  If the Parker Engine motor is racing, first check the speed setpoint of the servo drive. Ensure that you are in speed regulation and not in torque regulation. Verify the encoder setting, and check the servomotor phase order: U, V, W.
G
garcianancyAug 18, 2025
How to stop Parker EX motor speed from drifting?
- A
  Amanda Smith MDAug 18, 2025
  To correct motor speed drifting in your Parker Engine, reset the offset of the servoamplifier after giving a zero instruction to the speed setpoint input.

Parker EX Series Specifications

General

Fuel Type	Gasoline
Control Type	Electronic
Valves per Cylinder	4
Fuel System	Fuel Injected
Bore x Stroke	86 mm x 86 mm

Summary

INTRODUCTION

Purpose and Intended Audience

Manual content overview for selecting, installing, operating, and maintaining Parker EX servomotors.

IECEx and Kosha Certified Motors

Explains IECEx/Kosha certification basis and options for EX motors.

CCC Certified Motors

Details CCC certification, standards, and marking for EX motors.

Safety

Safety principles, rules, and precautions for EX servomotors.

Safe Torque Off Function

Explains the safe torque off function for motor temperature monitoring and safety.

Operating Category and Marking

Details categories and marking for ATEX/IECEx motors in gaseous/dusty atmospheres.

Special Conditions for ATEX Servomotors

Explains specific conditions for ATEX servomotors.

UL Conditions

Specifies UL conditions for ATEX servomotors.

PRODUCT DESCRIPTION

Quick URL

Provides a web link for additional information and data on EX servomotors.

Overview

General overview of Parker EX servomotors, their design, and applications.

Applications

Lists various industrial applications for Parker EX servomotors.

General Technical Data for ATEX/IECEx motors

Presents technical specifications for EX3, EX4, EX6, and EX8 ATEX/IECEx motors.

General Technical Data for UL motors

Presents technical specifications for EX3, EX4, EX6, and EX8 UL motors.

Product Code

Explains the coding system for Parker EX servomotor part numbers.

TECHNICAL DATA

Motor Selection

Guidelines for selecting the appropriate EX servomotor based on operating conditions.

Servo Drive Selection

Guidance on selecting a compatible servo drive for EX servomotors.

Current Limitation at Stall Conditions

Details recommended current limits for EX motors at low speeds.

Peak Current Limitations

Rules for respecting peak current values and durations to avoid motor damage.

EX Characteristics: Torque, Speed, Current, Power

Explains torque vs speed graph and intrinsic motor characteristics.

Further Data

Presents additional electrical and physical data for ATEX/IECEx and UL motors.

Efficiency Curves

Explains the meaning and caveats of constant efficiency curves for servomotors.

Electromagnetic Losses

Provides indicative data for electromagnetic losses (Tf and Kd) in EX motors.

Time Constants of the Motor

Explains calculation of motor time constants (electric, mechanical, thermal).

Speed Ripple

Describes typical speed ripple for EX motors with resolvers.

Cogging Torque

Lists typical cogging torque values for the EX series motors.

Rated Data According to Rated Voltage Variation

Explains how rated data changes with supply voltage variations.

Voltage Withstand Characteristics of EX Series

Details motor voltage withstand capabilities against pulse voltages.

Voltage and Current During Operating

Lists voltage and current specifications for EX motors.

DIMENSION DRAWINGS

EX310E

Provides dimension drawings and technical data for the EX310E motor.

EX420E EX430E

Provides dimension drawings and technical data for EX420E and EX430E motors.

EX620E EX630E

Provides dimension drawings and technical data for EX620E and EX630E motors.

EX820E EX840E EX860E

Provides dimension drawings and technical data for EX820E, EX840E, and EX860E motors.

EX310…C (CCC)

Provides dimension drawings and technical data for EX310...C (CCC) motors.

EX420…C; EX430…C (CCC)

Provides dimension drawings and technical data for EX420...C and EX430...C (CCC) motors.

EX620…C; EX630…C (CCC)

Provides dimension drawings and technical data for EX620...C and EX630...C (CCC) motors.

EX820…C; EX840…C; EX860…C (CCC)

Provides dimension drawings and technical data for EX820/840/860...C (CCC) motors.

EX310U

Provides dimension drawings and technical data for the EX310U motor.

EX420U EX430U

Provides dimension drawings and technical data for EX420U and EX430U motors.

EX620U EX630U

Provides dimension drawings and technical data for EX620U and EX630U motors.

EX820U EX840U EX860U

Provides dimension drawings and technical data for EX820U, EX840U, and EX860U motors.

MOTOR MOUNTING

Motor Mounting

Describes flange mounting orientation for servomotors.

Installation of ATEX machines

Guidelines for installing ATEX servomotors in hazardous locations.

Frame Recommendation

Recommendations for motor support, rigidity, flatness, and vibration.

SHAFT LOADS

Vibration Resistance to Shaft End

Specifies vibration resistance limits for the shaft end (radial and axial).

Maximum Load Acceptable on the Shaft

Information on maximum radial and axial loads acceptable on the motor shaft.

COOLING

THERMAL PROTECTION

POWER ELECTRICAL CONNECTIONS

Inlet Cables for ATEX/IECEx Version

Information on cable glands for ATEX/IECEx servomotors.

Wires Sizes

Guidelines for selecting appropriate wire sizes based on current and temperature.

Conversion Awg/kcmil/mm²

Table for converting wire gauges (AWG, kcmil) to square millimeters.

Motor Cable Length

Information on the impact of motor cable length on performance.

Mains Supply Connection Diagrams

Electrical connection diagrams for various EX motor series.

ATEX/IECEx Motor Connection

Step-by-step guide for connecting power and feedback cables with terminals.

EX3-EX4 UL Connection

Guide for connecting feedback and power cables with connectors for EX3-EX4 UL.

EX6-EX8 UL Connection

Guide for connecting feedback and power cables with terminals for EX6-EX8 UL.

Feedback System

Information on feedback systems including resolver, sensorless, and Hiperface encoders.

Hiperface Encoder Specifications

Technical specifications for various Hiperface encoders (singleturn, multiturn).

Cables

Information on connecting EX motors to Parker servo drives and cable part numbers.

Cable Option Max 80°C

Details optional cables for ATEX/IECEx motors with max 80°C surface temp.

Power & Sensor Cable for PSD

Describes power and sensor cable arrangements for PSD.

BRAKE OPTION

COMMISSIONING, USE AND MAINTENANCE

Instructions for Commissioning, Use and Maintenance

Procedures for commissioning, use, and maintenance of EX servomotors.

Storage

Recommendations for storing motors to avoid condensation and maintain shaft preservation.

Installation

Requirements for motor mounting, including foundations and torque values.

Preparation

Steps for preparing the motor after installation, including wiring access and cleaning.

Mechanical Assembly

Guidance on mechanical assembly, shaft handling, coupling, and related components.

Electrical Connections

Safety precautions and guidelines for making electrical connections to the motor.

Connection Diagrams

Electrical connection diagrams for various motor types and supplies.

Cable Glands Information

Technical data and certifications for cable glands used in ATEX/IECEx applications.

Torque Value

Specifies torque values for cable gland caps and connection modules.

UL Electrical Commissioning

Guidelines for UL electrical commissioning, wiring, and conduit requirements.

Maintenance Operations

Overview of maintenance operations, safety requirements, and special ATEX considerations.

Flameproof Enclosure Components

Information on traceability and replacement of flameproof enclosure components.

ATEX Flameproof Joints Information

Details on ATEX/IECEx flameproof joints, including length and gap specs.

TROUBLESHOOTING

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