HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GB/T 7344-2015 English PDF

US$469.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7344-2015: General specification for AC servomotors
Status: Valid

GB/T 7344: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 7344-2015English469 Add to Cart 4 days [Need to translate] General specification for AC servomotors Valid GB/T 7344-2015
GB/T 7344-1997English479 Add to Cart 4 days [Need to translate] General specification for A.C. servomotors Obsolete GB/T 7344-1997
GB/T 7344-1987EnglishRFQ ASK 3 days [Need to translate] A. C Servomotors--General specification Obsolete GB/T 7344-1987

PDF similar to GB/T 7344-2015


Standard similar to GB/T 7344-2015

GB/T 39631   GB/T 12665   JB/T 9542   GB/T 7346   

Basic data

Standard ID GB/T 7344-2015 (GB/T7344-2015)
Description (Translated English) General specification for AC servomotors
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K24
Classification of International Standard 29.160.30
Word Count Estimation 22,249
Date of Issue 2015-09-11
Date of Implementation 2016-04-01
Older Standard (superseded by this standard) GB/T 7344-1997
Quoted Standard GB/T 2423.1; GB/T 2423.2; GB/T 2423.16; GB/T 2423.17; GB/T 2423.22; GB/T 2828.1-2012; GB/T 2900.26; GB/T 7345-2008; GB/T 7346; GB/T 10069.1; GB/T 10405; GB 18211; JB/T 8162
Regulation (derived from) National Standard Announcement 2015 No.25
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Standard specifies the classification of the AC servo motor, technical requirements and test methods, inspection rules, ready to be delivered. This Standard applies to two-phase AC servo motor (hereinafter referred to as motor).

GB/T 7344-2015: General specification for AC servomotors

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
General specification for AC servomotors ICS 29.160.30 K24 National Standards of People's Republic of China Replace GB/T 7344-1997 General technical conditions for AC servo motors Released on.2015-09-11 2016-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Category 1 5 Technical requirements and test methods 3 6 Inspection rules 14 7 Delivery Preparation 18 8 User Services 18 Appendix A (informative) Model No. 19

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 7344-1997 "General technical conditions for AC servo motors", compared with GB/T 7344-1997, except for editing The main technical differences outside the series are as follows. --- Remove performance parameters and increase the cooling method (see 4.4, version 4.2.3 of.1997); --- Refer to GB/T 7345-2008, increase the "power frequency and voltage level" for selection (see 4.7); --- The requirements and test methods for the nameplate are more specific and clear (see 5.2); --- Increase the definition of the leader line in tabular form (see Table 3); --- Increase the electromechanical time constant project to measure the motor's rapid response capability (see 5.26); --- Remove audible structural noise, and call sound power level noise as noise (see 5.27, 5.36,.1997 edition); --- For the convenience of inspection operation, directly quote GB/T 2423 electrical and electronic products environmental test series standards (see 5.29, 5.30, 5.31); ---Specification of the test time specified in the steady-state acceleration project for the test operation (see 5.35); --- Increase the electromagnetic compatibility project, the requirements for electromagnetic compatibility are more specific (see 5.38); --- Increase safety requirements and more detailed safety requirements (see 5.42); --- In order to meet the test requirements, add "in the test circuit" when the motor rotates forward, the terminals 3 and 4 are connected to the casing (ground); When the motor rotates in the reverse direction, terminals 3 and 2 are connected together on the casing (ground). " (see Note 2 of 5.45.5.2); --- Put the model name into the informative Appendix A. This standard was proposed by the China Electrical Equipment Industry Association. This standard is under the jurisdiction of the National Micromotor Standardization Technical Committee (SAC/TC2). This standard was drafted. Xi'an Micro-Electrical Research Institute, Zibo Deputa Motor Co., Ltd., Guizhou Aerospace Linquan Motor Co., Ltd., Zhejiang Lianyi Motor Co., Ltd., Chengdu Weijing Motor Co., Ltd., Hebei Electric Co., Ltd., Wolong Electric Group Hangzhou Research Hospital Co., Ltd. The main drafters of this standard. Zhang Xia, Wang Fujie, Zhang Wei, Xu Xiaohua, Zhang Pu, Guo Yong. The previous versions of the standards replaced by this standard are. ---GB/T 7344-1997. General technical conditions for AC servo motors

1 Scope

This standard specifies the classification, technical requirements and test methods, inspection rules and delivery preparation of AC servo motors. This standard applies to two-phase AC servo motors (hereinafter referred to as motors).

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2423.1 Environmental testing of electrical and electronic products - Part 2. Test methods Test A. Low temperature GB/T 2423.2 Environmental testing of electric and electronic products - Part 2. Test method Test B. High temperature GB/T 2423.16 Environmental testing for electric and electronic products - Part 2. Test methods Test J and guide. GB/T 2423.17 Environmental testing of electric and electronic products - Part 2. Test method test Ka. salt spray GB/T 2423.22 Environmental testing - Part 2. Test methods Test N. Temperature change GB/T 2828.1-2012.Sampling procedures for sampling by sampling - Part 1 . Batch-by-batch inspections by Retrieving Quality of Acceptance (AQL) plan GB/T 2900.26 Electrotechnical terminology control motor GB/T 7345-2008 Basic technical requirements for control motors GB/T 7346 control motor basic shape structure type GB/T 10069.1 Determination of noise and noise - Part 1 GB/T 10405 control motor model naming method GB 18211 Micromotor Safety General Requirements JB/T 8162 control micro-motor packaging technical conditions

3 Terms and definitions

The following terms and definitions as defined in GB/T 2900.26 apply to this document. 3.1 Maximum stall torque maximumstaltorque The minimum value of the stall torque generated when the motor is in different positions under the rated power supply state. 3.2 Rated power state ratedpowercondition The excitation winding and the control winding of the motor are respectively fed with a rated excitation voltage of a rated frequency and a phase difference of 90 ° ± 3 ° (or rated capacitance) and The power supply state at the rated control voltage.

4 classification

4.1 Classification According to the rotor structure type, the motor can be divided into three categories. squirrel cage rotor motor, hollow cup rotor motor and wire wound rotor motor. 4.2 Model Nomenclature The model name of the motor shall comply with the provisions of GB/T 10405 (refer to Appendix A) or the product-specific technical conditions. 4.3 Basic outline structure and installation type The basic shape structure and installation type of the motor shall comply with the provisions of GB/T 7346 or product-specific technical conditions. 4.4 Cooling method The motor is cooled by closed natural cooling or closed forced cooling. 4.5 Circuit diagram The circuit diagram of the motor is shown in Figure 1. figure 1 4.6 Environmental conditions The environmental conditions for the use of the motor shall be in accordance with Table 1 or the product-specific technical conditions. Table 1 Environmental conditions grade temperature Relative humidity Air pressure kPa vibration Shock peak acceleration m/s2 Constant acceleration m/s2 1a -10~40 -25~40 -40~55 -55~85 90~95 74.8 74.8 10Hz~55Hz Double amplitude 1.5mm 10Hz~500Hz low frequency Double amplitude 1.5mm or peak acceleration 100m/s2 4.7 Power frequency and voltage level The power frequency and voltage level of the motor are selected according to Table 2 or specified by the product specific technical conditions. Table 2 Rated frequency Hz Rated excitation voltage Control voltage 50 12,36,220 12,36,220 400 26,36,115 26,36,115

5 Technical requirements and test methods

5.1 Appearance 5.1.1 Technical requirements The surface of the motor should be free of rust, bumps, scratches and peeling of the coating. The color and marking should be clear and the fasteners should be securely connected. The wire or terminal should be intact. 5.1.2 Test method Visually inspect the appearance of the motor. 5.2 Nameplate 5.2.1 Technical requirements The motor shall have a nameplate, and the nameplate shall comply with the relevant provisions of GB/T 7346 and the durability of GB 18211. 5.2.2 Test method Test according to the method specified in 5.2.2 of GB/T 7345-2008. 5.3 Outlet method and marking 5.3.1 Technical requirements The motor outlet mode can be adopted by lead wires, wiring boards or electrical connectors, which are stipulated by the special technical conditions of the products. Outlet marking should comply with Table 3 Provisions. table 3 Terminal number lead wire color winding 1 yellow excitation winding (first) 2 red control winding (first) 3 white excitation winding (tail) 4 black control winding (tail) 5 red-black control winding (midpoint) 6 green control winding (midpoint) 5.3.2 Test method Visually check the outlet mode and marking of the motor. 5.4 Terminal or lead line strength 5.4.1 Technical requirements The strength of the motor terminal or lead wire shall comply with the provisions of 5.3 of GB/T 7345-2008. 5.4.2 Test method Test according to the method specified in 5.3.2 of GB/T 7345-2008. 5.5 Outline and installation dimensions 5.5.1 Technical requirements The shape and installation dimensions of the motor shall comply with the specifications of the product-specific technical conditions. 5.5.2 Test method According to the shape and installation size of the motor, the type and accuracy level of the gage are selected, and the motor is placed under normal temperature conditions to stabilize it. After the non-operating temperature, the measurement is performed item by item. 5.6 radial clearance 5.6.1 Technical requirements When required, the radial clearance of the motor shall comply with the specifications of the product-specific technical conditions. 5.6.2 Test method Test according to the method specified in 5.5.2 of GB/T 7345-2008. 5.7 axial clearance 5.7.1 Technical requirements The axial clearance of the motor shall comply with the specifications of the product-specific technical conditions. 5.7.2 Test method Test according to the method specified in 5.6.2 of GB/T 7345-2008. 5.8 shaft extension radial runout 5.8.1 Technical requirements The radial runout of the shaft extension of the motor shall comply with the specifications of the product-specific technical conditions. 5.8.2 Test method Test according to the method specified in 5.7.2 of GB/T 7345-2008. 5.9 Coaxiality of the mounting mating surface 5.9.1 Technical requirements The coaxiality of the mounting mating surface of the motor shall comply with the specifications of the product-specific technical conditions. 5.9.2 Test method Test according to the method specified in 5.8.2 of GB/T 7345-2008. 5.10 Mounting the verticality of the mating end face 5.10.1 Technical requirements The installation of the motor and the verticality of the end face shall comply with the specifications of the product-specific technical conditions. 5.10.2 Test method Test according to the method specified in 5.9.2 of GB/T 7345-2008. 5.11 Insulation Dielectric Strength 5.11.1 Technical requirements The windings of the motor shall be able to withstand the test voltage specified in Table 4 between the casing and its windings without insulation breakdown or internal arcing. The peak leakage current of the middle winding is 5 mA, which is specified by the product-specific technical conditions. The motor should not be repeated during acceptance, but if the user mentions The test is allowed to be carried out once again, and the test voltage should be 80% of the original test voltage. Table 4 is in volts Rated excitation voltage Test voltage Winding between the windings of the casing 24 frame number and below 24 frame number and above 24 frame number and below 24 frame number and above ≤20 100 0-3 250 0-8 100 0-3 100 0-3 >20~60 300 0-9 500 0-15 150 0-5 250 0-8 >60~115 500 0-15 750 0-23 300 0-9 400 0-12 >115~220 900 0-30 900 0-30 500 0-15 500 0-15 5.11.2 Test method Test according to the method specified in 5.17.2 of GB/T 7345-2008. 5.12 Insulation resistance 5.12.1 Technical requirements Under the standard atmospheric conditions of the test or under the low temperature test conditions specified by the product-specific technical conditions, the windings of the motor and the winding of the casing The insulation resistance between the groups should be no less than 50MΩ, and the insulation resistance should be no less than 10MΩ under the corresponding high temperature conditions, under the corresponding damp heat conditions. The insulation resistance should be no less than 1MΩ. 5.12.2 Test method Test according to the method specified in 5.18.2 of GB/T 7345-2008. 5.13 Direction of rotation 5.13.1 Technical requirements According to the wiring of Figure 1, the voltage phase of the output terminal 2 of the motor control winding leads the shaft end of the excitation winding, and the shaft extension from the motor mounting surface In the end view, the rotating shaft should rotate counterclockwise, and the direction of rotation is defined as the positive direction. Note. When the motor rotates in the forward direction, the outlet end 3 and the outlet end 4 are connected to the casing (ground). 5.13.2 Test method According to Figure 1, the motor is unloaded, and the rated frequency and rated voltage of each winding are applied to rotate the motor shaft. Observe the rotation of the motor at this time. direction. 5.14 Self-braking time 5.14.1 Technical requirements The self-braking time of the motor should not exceed l5s or meet the requirements of the product-specific technical conditions. 5.14.2 Test method When the motor reaches a stable non-operating temperature, the motor is in the rated power supply state, running at no load, and then measuring the rotor from the control winding The maximum value is measured in the positive and negative directions of rotation from the moment of disconnection to the stop of rotation and the moment when the field winding is opened to the moment when the rotor stops rotating. 5.15 No-load starting voltage 5.15.1 Technical requirements The no-load starting voltage of the motor shall comply with the specifications of the product-specific technical conditions. 5.15.2 Test method Test according to the method specified in 5.11.2 of GB/T 7345-2008. 5.16 No-load speed and no-load current 5.16.1 Technical requirements The no-load speed of the motor and the no-load current of each winding shall comply with the specifications of the product-specific technical conditions. 5.16.2 Test method When the motor reaches the normal working temperature, it runs at no load under the rated power supply state, and measures the rotational speed of the motor in both the forward and reverse directions. Each winding current. 5.17 Impedance 5.17.1 Technical requirements When required, the winding resistance of the motor shall comply with the specifications of the product-specific technical conditions. 5.17.2 Test method When the motor reaches the normal working temperature, the rated frequency and rated voltage are respectively applied to the windings one by one, and in the case that the remaining windings are open, The impedance of each winding is measured at a time. 5.18 current 5.18.1 Technical requirements The current of each winding of the motor shall comply with the specifications of the product-specific technical conditions. 5.18.2 Test method When the motor reaches the normal working temperature, it is blocked in the rated power supply state, and the excitation windings in the positive and negative directions are measured separately. And control the winding current. 5.19 Input Power 5.19.1 Technical requirements The input power of each winding of the motor shall comply with the specifications of the product-specific technical conditions. 5.19.2 Test method When the motor reaches the normal working temperature, it is blocked in the rated power supply state, and the excitation windings in the positive and negative directions are measured separately. And control winding input power. 5.20 Maximum stall torque 5.20.1 Technical requirements The maximum stall torque of the motor shall comply with the specifications of the product-specific technical conditions. 5.20.2 Test method When the motor reaches the normal working temperature, it is blocked in the rated power supply state, and the rotor is in different positions (at least 3 places). The stall torque is taken as the minimum value, and the test should be carried out in both the positive and negative directions of rotation. 5.21 Voltage Sensitivity 5.21.1 Technical requirements When the excitation winding voltage of the motor changes to ±10% of the rated voltage, the self-braking time of the motor shall comply with the provisions of 5.14.1. 5.21.2 Test method When the motor reaches the normal working temperature, under the rated power supply state, no-load operation, respectively raise and lower the excitation voltage to the rated excitation 110% and 90% of the voltage, after the speed is stabilized, the time from when the control winding is disconnected to when the shaft stops rotating is measured. The test should be positive, Reverse the two directions of rotation. 5.22 Frequency sensitivity 5.22.1 Technical requirements When the power frequency of the motor changes to ±5% of the rated value, the self-braking time of the motor shall comply with the provisions of 5.14.1. 5.22.2 Test method When the motor reaches the normal working temperature, under the rated power supply state, the no-load operation, respectively adjust the frequency of the test voltage to the rated value 105% and 95%, after the speed is stabilized, the time from the moment the control winding is disconnected to the time when the shaft stops rotating is measured. The test should be in both positive and negative The direction of rotation proceeds. 5.23 Speed at maximum stall torque 1/2 5.23.1 Technical requirements When the motor generates 1/2 maximum stall torque, the speed should be no more than 75% of the no-load speed, or specified by the product-specific technical conditions. 5.23.2 Test method When the motor reaches the normal operating temperature, under the rated power supply state, the motor applies half of the measured value of 5.20.1 to measure the speed. 5.24 Non-linearity of stalling characteristics 5.24.1 Technical requirements The non-linearity of the stalling characteristics of the motor should not exceed ±10%, or specified by the product-specific technical conditions. 5.24.2 Test method When the motor reaches the normal working temperature, it is blocked in the rated power supply state, the stall torque is measured, and then the control voltage is measured in turn. 20%, 40%, 60%, 80%, 100%, 110% of the locked rotor torque at rated control voltage. When measuring the stall torque at each point, you should first charge Pressurize to the rated control voltage and maintain it to the stable operating temperature before adjusting to the required control voltage value for measurement. The nonlinearity of the stalling characteristic is calculated according to formula (1). Kd= Ta T0- ÷×100% (1) In the formula. Kd---the non-linearity of the stalling characteristic; Ta --- The stall torque at each control voltage value, in units of cattle meters (N·m); T0 --- stall torque at rated control voltage, in units of cattle meters (N·m); A --- The relative value of the control voltage at each point in decimal, ie 0.2, 0.4, 0.6. 5.25 Rotor moment of inertia 5.25.1 Technical requirements When required, the rotor inertia of the motor shall comply with the specifications of the product-specific technical conditions. 5.25.2 Test method Test according to the method specified in 5.19.2 of GB/T 7345-2008. 5.26 Electromechanical time constant 5.26.1 Technical requirements When required, the mechanical and electrical time constant of the motor shall comply with the specifications of the product-specific technical conditions. 5.26.2 Test method The motor is unloaded. When the normal operating temperature is reached, the field winding maintains the rated voltage, and the control winding applies the step rated control voltage. The oscilloscope records the complete waveform of the motor speed rise, and it is concluded that the motor no-load speed rises from zero to 63.2% of the stable no-load speed. time. 5.27 Noise 5.27.1 Technical requirements When required, when the motor is running under no-load conditions under rated power supply, the A-weighted sound power level of the noise shall conform to the product-specific technology. Conditional provisions. 5.27.2 Test method Test according to the method specified in GB/T 10069.1. 5.28 Temperature rise 5.28.1 Technical requirements The temperature rise of the winding of the motor shall comply with the specifications of the product-specific technical conditions. 5.28.2 Test method Test according to the method specified in 5.21.2 of GB/T 7345-2008, the motor is installed on the standard test bracket, except for product-specific technology. Unless otherwise specified in the operating conditions, the motor excitation winding single-phase feed with the rated excitation voltage, the rotor is blocked, and its temperature rise value is measured. 5.29 low temperature 5.29.1 Technical requirements The motor shall be capable of operating and storing under the low temperature conditions specified in the product specific technical conditions. Detecting the insulation resistance of the motor at low temperature, self-made The moving time shall comply with the provisions of 5.12.1 and 5.14.1. Check that the no-load starting voltage is not more than 2 times as specified in 5.15.1. The no-load speed shall comply with the provisions of 5.16.1, and the motor components shall not be broken or cause harmful deformation. 5.29.2 Test method The motor is mounted on a standard test stand and tested according to the test method Ad in GB/T 2423.1. 5.30 high temperature 5.30.1 Technical requirements The motor shall be capable of operating and storing under the high temperature conditions specified in the product specific technical conditions. Detecting the insulation resistance of the motor at high temperature, self-made The dynamic time, no-load starting voltage and no-load speed shall comply with the provisions of 5.12.1, 5.14.1, 5.15.1 and 5.16.1, respectively. The stall torque shall comply with the provisions of 5.20.1, the bearing grease shall not overflow, and the parts shall not cause harmful deformation. 5.30.2 Test method The motor is mounted on a standard test stand and tested according to test method Bd in GB/T 2423.2. 5.31 Temperature change 5.31.1 Technical requirements When required, the motor shall be able to withstand the extreme high and low temperature temperature changes specified in the product specific technical conditions. After the test, the bearing oil The grease shall not overflow and the parts shall not cause harmful deformation. 5.31.2 Test method According to the test method of GB/T 2423.22, the motor is tested, and the temperature limit value and the temperature change speed between the limit temperature are tested. The rate, the number of cycles of temperature change, the holding time at each limit temperature and the operating conditions of the motor shall be in accordance with the specifications of the product-specific technical conditions. 5.32 low pressure 5.32.1 Low temperature and low pressure 5.32.1.1 Technical requirements When required, the motor shall be capable of being stored and operated under the conditions of low temperature and low pressure specified by the product-specific technical conditions. Provisions for special technical conditions. 5.32.1.2 Test method Test according to the provisions of 5.25.1.2 and product-specific technical conditions in GB/T 7345-2008. 5.32.2 High temperature and low pressure 5.32.2.1 Technical requirements When required, the motor shall be capable of being stored and operated under the conditions of high temperature and low pressure specified by the product-specific technical conditions. Product specific technical conditions. 5.32.2.2 Test method Test according to the provisions of 5.25.2.2 and product-specific technical conditions in GB/T 7345-2008. 5.33 Vibration 5.33.1 Technical requirements Unless otherwise specified, the motor shall be capable of sinusoidal sweep or random vibration as specified in Table 7 of GB/T 7345-2008. Work and transportation. After the test, the motor should not be loose or damaged, and the insulation resistance should be in accordance with the provisions of 5.12.1. 5.33.2 Test method Test according to the method specified in 5.26.2 of GB/T 7345-2008. 5.34 Impact 5.34.1 Technical requirements When required, the motor shall be capable of operating and transporting under the impact conditions specified in Table 8 of GB/T 7345-2008. After the test, The motor should not be loose or damaged, and the insulation resistance should be in accordance with 5.12.1. 5.34.2 Test method Test according to the method specified in 5.27.2 of GB/T 7345-2008. 5.35 Steady-state acceleration 5.35.1 Technical requirements When required, the motor shall be capable of operating under steady-state acceleration conditions specified by the product-specific technical condit...

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 7344-2015_English be delivered?

Answer: Upon your order, we will start to translate GB/T 7344-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 7344-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 7344-2015_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 7344-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7344-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.