HJ BRUSHLESS AC SERVOMOTORS
144Pages

TECHNICAL DATA MANUAL HJ BRUSHLESS AC SERVOMOTORS ––––––––––––––––––––– Publication No. TD HJM 1.2 ISSUE NO.5.5 (Metric Series) Date: November 2009

CONTENTS 1 Introduction 2 General information - Receiving and storage. - Environmental protection. - Mounting of motors. - Thermal protection. - Holding brake options. - Maintenance and servicing. - E.C. Directives. 3 Mechanical tolerance 4 Connection details 5 Feedback device specification 6 Torque derating at high temperatures 7 HJ96 Technical Information 8 HJ116 Technical Information 9 HJ130 Technical Information 10 HJT155 Technical Information 11 HJ190 Technical Information 12 Useful Formulae

INTRODUCTION SEM has continuously developed its range of servo products to best serve the latest industry requirements. The new HJ range of servomotors uses the long experience gained in the servomotor field to give cost effective performance. The HJ range is fitted with Neodymium-Iron-Boron magnets (NdFeB) and is ideally suited to the requirements of Machine Tools, Transfer Lines, Robotics, etc. The motors are enclosed to IP65 as standard (other ratings on request). WHY BRUSHLESS? The optimum performance of a Brushless Servomotor is achievable without danger of Commutator ‘Flashover’....

GENERAL INFORMATION RECEIVING AND STORAGE On receipt the motors should be inspected. Any damage found should be reported immediately to SEM and the carrier. The shaft has been coated with a rust inhibitor, this can be removed with a suitable solvent. ENVIRONMENTAL PROTECTION All SEM brushless servomotors are protected to IP65 except at the shaft where the protection is to IP64 with fitted shaft seal or IP54 with no seal fitted. Protection Class Description IP65/64 (Standard feature) Totally protected against dust. PROTECTIVE COLLAR WITH SHAFT SEAL FITTED Protected against low pressure jets...

GENERAL INFORMATION THERMAL PROTECTION In all SEM brushless servomotors, the thermal sensor is embedded in the winding so that it can respond as quickly as possible to protect the winding from overheating. In HJ servomotors the standard sensor is a PTC sensor (same as or similar to KTY84- 130). A normally closed thermal switch can also be supplied with other sensors available The thermal protector is not capable of switching motor line currents and must be used only in the drive amplifier circuitry. PTC Temperature Sensor (Standard) This is a PTC sensor (same as or similar to Philips...

GENERAL INFORMATION HOLDING BRAKE OPTIONS Two models of fail safe brake options are available, one is a spring applied and the other a permanent magnet type. Both types are primarily holding brakes e.g. to hold a vertical axis under a no voltage condition. However, they can also be used in some applications for emergency stopping. Spring Applied Brake The brake is of the 'springset' fail to safe type. Connection should be such that when the motor is powered the brake coil is energised and the brake released. Under normal operating conditions no maintenance is required other than ensuring...

GENERAL INFORMATION All servomotors are fitted with double shielded, single row radial ball bearings. Under normal conditions no maintenance is required. The bearings are selected to give a minimum 30,000 hours life. Refer to the shaft loading graphs for further information. Bearing Specification The bearings are selected to give a minimum 30,000 hours life. Refer to the shaft loading graphs for further information. It is recommended that a general inspection be made at regular intervals to check all bolts, nuts, couplings, etc. to ensure that they are still tightened to the correct torque....

E.C. DIRECTIVES There are three main directives that affect applications incorporating servomotors. Machinery Directive 2006/42/EC This directive applies to complete machines. In accordance with the directive, SEM provides a Certificate of Incorporation which includes installation instructions and general service guidelines in different languages. Low Voltage Directive 2006/95/EC This applies to electrical equipment for use with a DC voltage of 75V to 1500V and AC voltage of 50V to 1000V. SEM AC/DC brushless servomotors in the ranges HJ96, HJ116, HJ130 and HJ/HJT155 conform to the EC...

MECHANICAL TOLERANCE IEC 72 SHAFT & SPIGOT CHECKING CHART SHAFT DIAMETER E/ 2 mm E NORMAL CLASS mm PRECISION CLASS inch mm inch ≤10 .015 .00059 .00138 .018 .00071 .040 .00157 .021 .00082 >30 ≤ 50 3 .00181 .035 >18 ≤ 30 SHAFT EXTENSION RUN-OUT .030 >10 ≤ 18 .050 .00196 .025 .00098 >50 ≤ 80 .060 .00236 .030 .00181 10 10 PERPENDICULARITY OF MOUNTING FACE TO SHAFT CONCENTRICITY OF SPIGOT AND SHAFT SPIGOT DIAMETER 3 MAXIMUM PERMISSIBLE CHANGE IN INDICATOR READING NORMAL CLASS mm PRECISION CLASS mm inch mm inch .08 .00315 .04 .00157 .10 .00394 .05 .00197 40 50 60 70 80 95 110 130 190 230

CONNECTION DETAILS BRUSHLESS MOTOR WITH STANDARD RESOLVER FEEDBACK CONNECTOR TERMINAL BOX (OPTION) (HJ155 ONLY) PIN B+ FUNCTION 1 U V W STATOR 2nd PHASE S2 2 B– STATOR 2nd PHASE S4 3 4 5 6 7 8 THERMAL SENSOR + 9 THERMAL SENSOR – 10 ROTOR R1 11 STATOR 1ST PHASE S1 12 4 ROTOR R2 STATOR 1ST PHASE S3 BRAKE (OPTIONAL) MOTOR SUPPLY CONNECTOR (OPTION) INTERCONNECTRON SIZE 1 - 12 PIN (20° OFFSET) PIN 1 2 9 12 10 11 3 4 INTERCONNECTRON SIZE 1.5 - 6 PIN 8 FUNCTION U MOTOR U V 7 MOTOR V 1 6 5 EARTH TERMINAL – + V W 2 U + BRAKE B+ IF FITTED – BRAKE B– IF FITTED W MOTOR W (HJ155 ONLY) MOTOR EARTH SUPPLY...

CONNECTION DETAILS BRUSHLESS MOTOR WITH HEIDENHAIN ERN1387 ENCODER TERMINAL BOX (OPTION) FEEDBACK CONNECTOR (HJ155 ONLY) PIN FUNCTION B+ ENC. PIN 1 A+ (0°SIGNAL) A– (0°SIGNAL) R+ (REF SIGNAL) D– (COSINUS) 6A 5 C+ (SINUS) 7b 6 C– (SINUS) 1A 7 0V (UN) 5B 8 THERMAL SENSOR + 9 THERMAL SENSOR – 10 +5V (UP) 1B 11 B+ (90°SIGNAL) 3B 12 B– (90°SIGNAL) 5A 13 R– (REF SIGNAL) 4A 14 D+ (COSINUS) 2B 15 0V (SENSOR UN) 3A 16 +5V (SENSOR UP) W 4b 4 V 2A 3 U 6B 2 B– 7A BRAKE (OPTIONAL) MOTOR EARTH TERMINAL 17 4 SUPPLY CONNECTOR (OPTION) INTERCONNECTRON SIZE 1 - 17 PIN PIN 3 2 4 13 14 5 6 1 12 17 11 16 15 7...