gsk GSK SJTAC User Manual

In this manual, we have tried as much as possible to describe

all the various matters about AC servo motor. However, we can not

describe all the matters which must not be done or which can not be

done because there are so many possibilities. Therefore, matters

which are not especially described in this manual should be regarded

as “impossible” or “forbidden”.

The copyright of the user manual is owned by GSK CNC

Equipment Co., Ltd (Hereinafter referred to as GSK).It is against the

law for any organization or individual to reproduce this manual in any

form without the permission of GSK and GSK reserves the right to

investigate its law duty.

User Manual

PREFACE

Dear user:

It’s our honor that you select GSK SJT serial AC servo motor (Hereinafter

referred to as motor).

For safety of the motor and the product and for the normal and effective

running, please read the manual carefully before installing and using the

product.

User Manual

SAFETY PRECAUTIONS

The incorrect connection and operation may cause the accident, so

before using and operating the motor, please read the manual carefully!

1. The motor is installed with the photoelectric encoder, and it’s not allowed to hit the

motor. And the user can’t disassemble the photoelectric encoder by himself; otherwise,

the relative position (zero position) between the encoder and the motor winding is

changed, which causes the motor out of running!

2. In the normal climate, measure the insulation resistance which the motor winding is

against with the cabinet, by 500V megameter, and the value should NOT be less than 20

Ω.

3. The motor and the drive unit should be connected correctly based on the manual to

guarantee the protective grounding stable and reliable.

4. The motor can run with load only after the motor is free of noise and vibration during

running from zero speed to the maximum speed in the dry run state.

5. During the motor running, it’s not allowed to touch the motor shaft and cabinet.

6. Only the qualified person can adjust and maintain the motor.

7. It is forbidden to move the motor by dragging the wire (cable) or the motor shaft.

8. GSK does NOT take any responsibility for any change on the product by the user, and

the warranty bill becomes invalid.

All specifications and designs are subject to change without notice.

III

User Manual

RESPONSIBILITY

Responsibility of the manufacturer

——The manufacturer should be in charge of the design and the structure of the motor

and its accessories.

——The manufacturer should be responsible for the safety of the motor and its

accessories.

——The manufacturer should be in charge of the provided information and suggestion

for the user.

Responsibility of the end user

——The user should be very familiar with the safety operation through learning the

motor safety operation or participating in the training session.

——The user should be responsible for the safety after adding, changing or modifying

the original motor and its accessories by himself.

——The user should be in charge of the danger resulted from the operation, adjusting,

maintenance, installation and storage which are not complied with the manual

regulation.

The manual is kept by the end user.

Thank you for your friendly support during using GSK

product.

GSK SJT series AC servo motor

CONTENT

RESPONSIBILITY ····················································································· IV

Ⅰ PRODUCT CHARACTERISTICS ························································· 1

Ⅱ RUNNING CONDITIONS ······································································ 1

Ⅲ MODELS of the MACHINE··································································· 2

Ⅳ MAIN TECHNICAL PARAMETERS of the MOTOR····························· 3

Ⅴ MOTOR OVERALL and INSTALLATION DIMENSION·······················11

Ⅵ CONNECTION between the MOTOR and DRIVE UNIT···················· 14

Ⅶ STORAGE of the MOTOR·································································· 15

Ⅷ TRANSPORTATION of the MOTOR ·················································· 15

Ⅸ PROTECTION of the MOTOR ···························································· 16

Ⅹ WARRANTY························································································ 17

Ⅺ ORDER································································································ 17

GSK SJT series AC servo motor

Ⅰ PRODUCT CHARACTERISTICS

SJT series sine shaped AC permanent magnet synchronous servo motor, which is researched,

developed and manufactured by GSK, adopts the rare earth permanent magnet material of high

performance, with the characteristics of high torque inertia ratio, low speed performance and strong

overload capacity, etc, which can widely satisfy the requirements of the machine CNC system.

Ⅱ RUNNING CONDITIONS

2.1 The height above sea level should NOT exceed 1000m. If it’s more than 1000m, some

performance may get affected due to the air cooling.

2.2 The environment temperature should be in the range of -10℃ ~ +40℃.

2.3 The relative air humidity is ≤90% (without the condensation).

2.4 AC voltage value of steady state is:（0.85 ~1.1）multiplies the rated voltage value.

Ⅲ MODELS of the MACHINE

GSK SJT series AC servo motor

Example: 80SJT

Dimension for

installing the flange:

AC servo motor series

SJT

Common

SJTG High precision & speed SJTR

Feedback unit M Photoelectric encoder

None

Remark: When the power supply of the safe brake is

（ 0.9~ 1.1 ） ×24V, the

DC. interface is 3-cord socket, the pins 1 and 2 are power supply terminals (without pole), pin 3 is the earth one. When pins 1 and 2 are connected with the power supply, the brake doesn’t operate,; when the power supply is OFF, it operates. The safe brake operation time≤0.1s.

Zero-speed torque Remark: It is represented

by three digits, and its value is in three digits ×10 its unit is N·m. Example: 032×10

110 130 150 175

Dedicated for the robot

Safe brake:

None

Available

－

MZ032EH（A4Y1X）

-1

and

-1

=3.2N·m

SJT - M Z 032 E H（A□ Y□ X）

Connection mode

None Industrial (aviation) socket type

X Cable direct type

Shaft end or installation config.

None: Standard shaft end Y□ Special cylinder shaft end

□ Special cone shaft end

Z S□ Stepped motor installation configuration

Remark:The digit code is in “□” , about the number representing the special shaft end, refer to the installation overall figure of the motor.

Encoder type

A or none Incremental 2500p/r A1 A2 Incremental 5000p/r A3 Incremental split-type 2500p/ A4 Absolute 17bit A4Ⅰ Absolute 17bit, Biss treaty A4Ⅱ Absolute 17bit, Smart-Abs treaty

Input voltage of the drive unit

None 220V

H 380V

Rated speed

A 1000 r/min B 1500 r/min C 2000 r/min D 2500 r/min E 3000 r/min F 3500 r/min

G 4000 r/min

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