JB/T 6760-1993 General technical requirements for stepper motor drivers
Some standard content:
Mechanical Industry Standard of the People's Republic of China
General Technical Conditions for Stepper Motor Drivers 1 Subject Content and Scope of Application
JB/T6760-93
This standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of stepper motor drivers. This standard applies to drivers of reluctance, hybrid, permanent magnet and special stepper motors for machine tools, petroleum, chemical machinery, foreign computer equipment and industrial automation instruments. This standard should be used together with the corresponding special technical conditions for stepper motors. 2 Reference standards
GB2900.26
GB10402
ZBJ50002
ZBJ50007
3 Terms
Packaging storage and transportation diagrams
Electrical terms Control micro motor
General technical conditions for reluctance stepper motors General technical conditions for machine tool digital control systems Technical conditions for stepper motor drive machine tool numerical control systems 3.1 Driver
A device that outputs power to the motor windings in a certain sequence, generally composed of a logic distributor and a power amplifier. 3.2 Logic distributor
A converter that converts input pulses into a certain sequence logic signal. 3.3 Power amplifier
A circuit or device that is controlled by a sequence logic signal to provide electrical energy to the motor windings. 3.4 Unipolar circuit
A switching circuit that excites the motor phase windings with a unidirectional current. 3.5 Bipolar circuit
A switching circuit that uses bidirectional current to excite the motor phase winding. 3.6 Single voltage circuit
A switching circuit that uses a voltage source and a specified timing to excite the motor phase winding. 3.7 High-low voltage circuit
A switching circuit that uses two high and low polarity power supplies and a specified timing to excite the motor phase winding. 3.8 Chopper circuit
A switching circuit that keeps the current in the motor phase winding constant near the set value and presents a sawtooth waveform. 3.9 Frequency modulation and voltage regulation circuit
A circuit in which the main power supply voltage changes with the motor operating frequency. 3.10 Subdivision circuit
A switching circuit that excites the motor phase winding with a certain timing so that its current changes according to a certain rule. Approved by the Ministry of Machinery Industry on August 21, 1993
Implemented on October 1, 1993
Product classification
4.1 Classification
Unipolar circuit;
Bipolar circuit;
Single voltage circuit;
High and low voltage circuit;
Chopper circuit:
Frequency modulation and voltage regulation circuit;
Subdivision circuit.
4.2 Structural type
4.2.1 Structure
JB/T6760-93
The structure of the driver shall be determined according to the overall requirements of mechatronics and the corresponding special technical conditions. 4.3 Model
Derivation number AB, C..
Design serial number 1, 2, 3,
Number of phases 1, 2, 3,:
Working principle characteristic word
General name of driver (step)
Working principle characteristic word is represented by Chinese phonetic letters in capital letters, unipolar circuit—D
bipolar circuit—S
single voltage circuit—Y
high and low voltage circuit——G
wave circuit——Z
frequency modulation and voltage regulation circuit—
subdivision circuit
When the driver has two or more principle circuits at the same time, it is represented by two main working principle characters. Unipolar circuit D or bipolar circuit S should be written in the first place.
Technical requirements
The overall layout of the driver should meet the requirements of safety, protection, strength, ventilation, heat dissipation, vibration resistance, anti-interference and maintainability. 5.1 Environmental conditions
5.1.1 Climate environment
The working climate conditions and storage and transportation climate conditions of the driver are listed in Table 1, 102
Ambient temperature
Relative humidity
Atmospheric pressure
JB/T6760-93
Working climate conditions
-5~40℃
40%~80%
86~106kPa
5.1.2 Working high temperature and storage and transportation high temperature
The driver should be able to operate normally under the working high temperature conditions specified in Table 1 and after storage and transportation high temperature. Storage and transportation conditions
-40~55℃
≤93%(40C)
86~106kPa
Normal operation is when the rated power supply and the motor does not lose step, the starting frequency, operating rate and output torque should reach the rated value (the same below). 5.1.3 Low temperature
The driver should be able to operate normally under the working low temperature conditions specified in Table 1 and after storage and transportation at low temperature. 5.1.4 Heat
The driver should be able to operate normally after being placed for 24 hours under the condition of temperature and humidity reaching 80% (40℃). 5.1.5 Transportation
After the driver has been transported, open the package and check that the appearance should not be damaged, all fasteners should not be loose, and it should be able to operate normally when powered on. 5.1.6 Vibration and shock
The driver should be able to withstand the vibration test specified in Article 2.4.2 of ZBJ50002. After the vibration and shock, the electrical performance is not affected, there should be no mechanical damage and loosening of the fastening parts, and it should be able to operate normally when powered on. 5.1.7 Continuous test operation
The driver should be able to operate normally and continuously for 24 hours under 40±2℃. 5.2 Appearance and assembly quality
The coating on the surface of the driver should not have defects such as bubbles, cracks, shedding, rust, etc. The driver housing should be protected from foreign solid objects and liquids. It has a certain defense capability against dust and chips. The components and connections assembled in the driver should be correct, neat and beautiful. 5.3 Electrical safety
5.3.1 Insulation resistance
The insulation resistance between any bare live body with an AC voltage of more than 50V and the protective grounding terminal shall not be less than 50M, and shall not be less than 1MO after the humidity test.
5.3.2 Insulation dielectric strength
The insulation resistance between the part with the AC rated working voltage and the adjacent non-live conductor shall be able to withstand the insulation dielectric strength test of AC (50Hz) effective value 1500V for 1min without breakdown and arcing. The voltage of the repeated test shall be 80% of the original voltage. 5.3.3 Leakage current
When the drive is connected to the power supply grid, when the motor is operating normally, the leakage current value of any power line to the protective grounding terminal shall not exceed 3mA.
5.4 Power adaptability
When the AC grid voltage fluctuates between the rated voltage -15% to +10%, the drive shall meet the requirements of the special technical conditions. 5.5 Electrical parameters and related characteristics
5.5.1 DC voltage
The range of DC supply voltage is determined by special technical conditions. 5.5.2 Static phase current tolerance
Under rated voltage, the tolerance value of static phase current should be less than ±5% of the rated value. In case of special requirements, it shall be in accordance with the provisions of special technical conditions. 5.5.3 Locking current
JB/T6760-93
The locking current of the driver shall comply with the provisions of special technical conditions. 5.5.4 No-load starting frequency
The no-load starting frequency of the driver shall comply with the provisions of special technical conditions of stepper motors. 5.5.5 No-load operating frequencybzxZ.net
The no-load operating frequency of the driver shall comply with the provisions of special technical conditions of stepper motors. 5.5.6 Starting torque rating characteristics
The starting torque rating characteristics shall comply with the provisions of special technical conditions of stepper motors. 5.5.7 Operation short-frequency characteristics
The operation torque-frequency characteristics shall comply with the provisions of the special technical conditions for stepper motors. 5.6 Reliability indicators
The mean time between failures (MTBF) of the driver shall not be less than 3000h. 6 Test methods
6.1 Test conditions
6.1.1All tests shall be carried out under the conditions listed in Table 2. Table 2
Ambient temperature
Relative humidity
Atmospheric pressure
Power supply voltage and rated power
Test conditions
45%~75%
86~106kPa
Rated value
6.1.2The accuracy of measuring instruments shall generally not be less than Class 1; the test instruments and equipment shall comply with the requirements of Appendix A of ZBJ50002. 6.2 Appearance and assembly quality inspection
Use visual inspection and instrumentation to inspect the appearance and assembly quality of the driver, which shall meet the requirements of Article 5.2. 6.3 Electrical safety test
6.3.1 Insulation resistance
Use 500+100V with an accuracy of 1.A 0-level megohmmeter is connected between the AC power input terminal and the protective grounding terminal of the driver (the input terminal is not connected to the power grid), but the power switch and contactor are in the on position. After applying the test voltage for 1 minute, the insulation resistance value read should meet the requirements of Article 5.3.1. Components that are not subject to high-voltage tests according to the design should be disconnected before the test. 6.3.2 Insulation dielectric strength
Between the AC power input terminal and the protective grounding terminal of the driver (the input terminal is not connected to the power grid), an adjustable power supply with a power of not less than 500VA is used to feed the test voltage, which is gradually increased to the rated value (1500V) within 5 to 10 seconds, maintained for 1 minute, and gradually reduced to a value below the rated voltage, and then the test power supply is disconnected. The test results should meet the requirements of Article 5.3.2. Components that are not subject to high-voltage tests according to the design should be disconnected before the test.
6.3.3 Leakage current
Add an isolation transformer on the AC input side of the driver to put the driver system in working condition. During the test, an AC ammeter is connected between the output terminal of the isolation transformer and the protective grounding terminal. When the input voltage is adjusted to 1.1 times the rated voltage, the value indicated by the ammeter shall meet the requirements of Article 5.3.3.
6.4 Electrical parameters and related characteristics
The driver shall be connected with the corresponding pulse source and stepper motor for electrical parameter testing. 6.4.1 DC voltage
JB/T6760-93
The driver shall be energized with the maximum number of phases according to the motor distribution method, and the DC voltage of the main circuit of the power amplifier shall be measured with a DC voltmeter. The result shall meet the requirements of Article 5.5.1.
6.4.2 Locking current
When the driver is in the rated power supply state, the motor is locked, and a DC ammeter is connected to any phase winding to measure the current, or an oscilloscope is used to check the voltage on the sampling resistor. The result shall meet the requirements of Article 5.5.3. 6.4.3 No-load starting frequency
Test according to the method specified in the special technical conditions of the driver and the matching motor, and the result shall meet the requirements of Article 5.5.4. 6.4.4 No-load running frequency
Test according to the method specified in the special technical conditions of the driver and the matching motor, and the result shall meet the requirements of Article 5.5.5. 6.4.5 Starting torque-frequency characteristics
Test according to the method specified in the special technical conditions of the driver and the matching motor, and the result shall meet the requirements of Article 5.5.6. 6.4.6 Running torque characteristics
Test according to the method specified in the special technical conditions of the matching motor, and the result shall meet the requirements of Article 5.5.7. 6.5 Environmental conditions
6.5.1 Low temperature
Put the driver in a low temperature box (room), and reduce the temperature in the box (room) to -5℃. After keeping it for 2 hours, conduct a power-on test in the low temperature box (room). The result shall meet the requirements of Article 5.1.3.
6.5.2 Wet heat
Put the driver in a wet heat box (room), adjust the temperature to 40°C and keep it for 30 minutes, start to input water vapor, and make the humidity reach 80% (40°C) within 1 hour. After 24 hours, test the insulation resistance, which should be no less than 1Mn, and then conduct a power-on test. The result should meet the requirements of Article 5.1.4. 6.5.3 Transportation test
Put the packaged driver in the middle of the car and fix it. Run it on a third-class highway at a speed of 20 to 40 km/h for 100 km. After unpacking and checking the appearance, it should meet the requirements of Article 5.2. Conduct a power-on test, and the result should meet the requirements of Article 5.1.5. This test is allowed to be carried out on the transportation vibration test equipment specified in Article 3.7.7.2 of ZBJ50002. 6.6 Purchase, storage and transportation climate condition test
6.6.1 High temperature
Put the driver in a high temperature box (room) and make the temperature in the box (room) rise to 55℃. After storing for 4 hours, lower the temperature to the working climate condition for 4 hours. Unpack and check the appearance. It should meet the requirements of Article 5.2. Power on the test. The result should meet the requirements of Article 5.1.2. 6.6.2 Low temperature
Put the driver in a low temperature box (room) and make the temperature in the box (room) drop to -40℃. After storing for 4 hours, gradually raise the temperature in the box (room) to the working climate condition for 4 hours. Unpack and check the appearance. It should meet the requirements of Article 5.2. Power on the test. The result should meet the requirements of Article 5.1.3.
6.7 Vibration and shock
Test according to the method in Article 3.7.5 of ZBJ50002. The transportation test can also be used to replace the vibration and shock test. 6.8 Continuous test operation
Place the driver in a high temperature box (room) and keep the temperature at 40±2℃. The matching motor is placed outside the high temperature box (room) and runs without load. According to the starting frequency and running rate range specified in the special technical conditions, the test is carried out according to Table 3. The continuous trouble-free operation during the test shall not be less than 24h. The result shall meet the requirements of 5.1.2, 5.1.7 and 5.4. Table 3
Power supply voltage
Time h
Rated value
Rated value
Rated value
Rated value
Rated value
Rated value
, 6.9 Reliability test
JB/T6760-93
6.9.1 Reliability design should be carried out for the development of new products, and the expected value of the mean trouble-free working time should be determined by the reliability prediction method. 6.9.2 The reliability acceptance test shall be carried out in accordance with the provisions of Article 5.5 of ZBJ50007. 7 Inspection rules
7.1 Inspection classification
Factory inspection (delivery inspection);
Type inspection (routine inspection).
7.2 Factory inspection
7.2.1 The factory inspection shall be carried out by the inspection department of the manufacturing unit on a unit-by-unit basis. The driver can only be put into service after all the inspection items are qualified. 7.2.2 If any fault occurs during the test, the test shall be interrupted. After the cause is found and the fault is eliminated, the test shall be continued from the item. If the fault occurs again, it shall be judged as unqualified.
7.3 Type inspection
The samples for type inspection shall be randomly selected from the products that have passed the factory test, and the number shall not be less than 2 units. 7.3.1 The type inspection shall be carried out by the quality inspection department of the manufacturing unit, or in the laboratory designated by the superior quality supervision agency. 7.3.2 For mass-produced products, each batch shall be subject to type inspection. Products produced continuously shall be inspected at least once a year. Type tests shall be conducted when the design and main process are changed or when the main components, devices or materials are replaced. 7.3.3 When a fault occurs during the test or any item fails, the cause shall be found out and repaired, and the test shall be continued from the item. If the same fault occurs again, it shall be judged as unqualified.
7.3.4 Reliability test
Reliability test must be conducted during mass production, and reliability test shall be conducted every 23 years for products produced continuously. The items for factory inspection and type inspection are listed in Table 4, and shall be carried out in accordance with the contents of Table 4. Table 4
Test items
Appearance and assembly quality
Insulation resistance
Insulation dielectric strength
Condensation current
No-load starting rate
No-load operation frequency
Starting torque characteristics
Operating torque characteristics
High temperature
Alarm and impact
Continuous machine operation
Loadability test
Technical requirements
Test method| |tt||Test classification
Factory test
Type test
Note, ① "V\" indicates the items to be carried out in this type of test. 1) Follow the provisions of Article 7.3.4.
8 Marking, packaging, transportation and storage
JB/T6760-93
8.1 Marking
8.1.1 The driver leaving the factory should have a nameplate mark in an obvious position, and it is guaranteed that it will not fall off during the entire service life. The nameplate should include the following contents ：
a. "Model", "Name", "Manufacturer", b. "Factory number", "Date of manufacture". 8.i.2 The outer wall of the packaging box should have the shipping and receiving marks and storage and transportation diagrams specified in GB191. 8.2 Packaging
8.2.1 Use wooden boxes or corrugated cardboard boxes for packaging, and a layer of linoleum paper should be pasted on the inside of the wooden box. 8.2.2 Put the drive into a plastic bag, lay it flat in the box, and stuff it tightly with shredded paper strips or fix it with foam plastic. 8.2.3 Packaging box The product should contain the certificate of conformity, instruction manual, packing list, etc. 8.3 Transportation and storage
8.3.1 The packaged product should be suitable for transportation by road, rail, air, etc. 8.3.2 During long-distance transportation, the product should not be placed in an open-air carriage or warehouse, and should be protected from rain, dust and mechanical damage. 8.3.3 The climatic conditions of the warehouse where the product is stored should comply with the provisions of Article 5.1.1. There should be no acid, alkali or corrosive gas indoors, and no strong mechanical vibration, impact or strong magnetic field.
8.3.4 If the product is stored in the warehouse of the manufacturing unit for more than one year, it should be re-inspected before leaving the factory. Additional Notes:
This standard is proposed and managed by the Xi'an Micromotor Research Institute of the Ministry of Machinery Industry. This standard is drafted by the Xi'an Micromotor Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Chen Bailu, Wang Caixia, and Zhao Xizang. From the date of implementation of this standard, the original JB/DQ3002-80 "QBY Power Stepper Motor Thyristor Drive Power Supply Acceptance Standard" will be invalid. 107
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