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Follow these steps: 1. Check that the power supply is providing correct voltage; 2. Verify the driver’s input signals, power, and grounding; 3. Check the driver parameter settings; 4. Ensure the load does not exceed the motor’s maximum torque. For integrated servo motors, also check: whether the PLC program is running, whether the servo is in emergency stop, whether limit signals are triggered, and whether the “servo ready” signal is confirmed.
Check the following: 1. Is the motor torque sufficient to drive the load? – it is recommended to oversize torque by 50‑100%; 2. Is the motor properly secured? – an insecure mounting can cause strong resonance and step loss; 3. Check whether the control signals match the driver’s requirements; 4. Look for electromagnetic interference.
Follow these directions: 1. Check that the power supply voltage is within the normal range (observe whether the indicator LED is steady or flashing); 2. Verify the wiring and connections of the CAN/RS485 (or other) communication lines; 3. Ensure the GND of the communication line is connected; 4. First confirm hardware connections are correct, then verify software communication parameters.
Possible causes include: feedback signal interference; encoder failure; improper inertia matching; backlash or looseness in the mechanical transmission.
Overheating may be due to overload, inadequate cooling, or excessive current. Recommendations: 1. Check whether the load exceeds the rated torque; 2. Confirm that the ambient temperature is within the specified range; 3. Check the driver current setting; 4. Ensure sufficient heat dissipation space around the motor.
This is because stepper motors typically use incremental encoders; on power‑up, the controller does not know the exact rotor position, so it applies a small current to move the motor slightly to detect the position angle. Servo motors use absolute encoders or other types that know the position immediately, so they do not move when enabled.
I. Functions and Precautions (1) Function Description: Improper customer operation may cause the COB-ID of the PDO object to be modified. This document will demonstrate how to recover the COB-ID of the PDO object using messages. (2) Precautions: <1> For more detailed instructions on using PDO, please refer to the "PDO Messages" section of the communication manual corresponding to your purchased product. II. Related Parameters (1) 1800h, 1801h, 1802h, 1803h: TPDO communication objects (2) 1400h, 1401h, 1402h, 1403h: RPDO communication objects For specific definitions of each parameter, please refer to the "Object Dictionary" chapter of the communication manual. The 01h sub-address of each parameter above is a COB-ID, and its specific value is related to the corresponding identifier, as shown in the figure below: III. Message Writing (1) Add a message line and enter the relevant message 23: Function code (write 4 bytes) 00 18 01: 1800:01 Index (TPDO1 address) 81 01: 0x180 + motor address (motor No. 1 is 0181)
A stepper motor still outputs rated current to hold torque when stationary and locked; this is inherent to its operating principle, and temperature rise is normal. Magnetic materials generally demagnetize around 130°C, so **a motor housing temperature of 80–90°C is completely normal**. If the temperature is too high, first check whether the running current setting is too large; next consider switching to a closed-loop solution — a closed-loop stepper only outputs current when needed, significantly reducing heat.
In 80% of cases the acceleration torque or effective torque was not calculated. The static load torque is often very small (only 0.0026 N·m in the example above), while the acceleration torque is 170 times larger. You must size based on the motion profile, not the steady-state load.
Yes, this is one of its core capabilities. A torque motor has **soft mechanical characteristics** and can stall — when the load torque increases, it automatically reduces speed while increasing output torque, without damaging the motor. But **continuous stall must verify the continuous torque and heat-dissipation conditions**; exceeding the continuous torque triggers over-temperature protection.
Three layers of thinking: ① reduce loss at the source (FOC+SVPWM, low R<sub>DS(on)</sub> devices); ② optimize the heat dissipation path (housing cooling fins, thermal pads, thermal vias); ③ reduce consumption through control strategy (closed-loop solutions output current on demand and automatically reduce current when stationary, lowering temperature rise by 30%–50% compared with open-loop).
The device is busy indicating that the generator is still in its previous state, at which point the generator needs to be detached before setting parameters or mode switching
select multi-circle position by 0x45 recovery there's a turn on the axle when the power falls off. the power drops too fast. appropriately boost the power 0x1c without pressure alarm change power
Meaning: Lightweight currents: currents at the time of transmission Blocking of currents: the biggest currents that are blocked by the electrics Run currents: maximum currents when the motor is mounted Overloading: The electric triggers the largest excess alert. Relationship: Overloading current. Weaks are high, electrics are hot
The following figure can be changed to not record and save it;
The XML version is incorrect with the firmware version, which may cause the controller to fail to scan to the motor normally, the motor cannot start, the correct bin file is recovered, and the recovery method is referred to as 34;
two wires of external brake resistance, one of which is connected to the brake resistance wire of the motor, and the other is connected to the 48V positive electrode of the motor;
Maximum torque H6072 set to 2000, maximum current H6073 set to 2000;
Physical terminal Setup process: H2003-03 = 38 (clear fault history), H2003-04 = 0 (low level valid), parameter saved (restart parameter is still in); Corresponding message: 601 2B 03 20 03 26 00 00 00 601 2B 03 20 04 00 00 00 00 601 23 10 10 01 73 61 76 65 DI1 to the low level, the current historical alarm information can be cleared; Virtual terminal Setup process: H2017-01 = 38 (Clear fault history), 2017-02 Setting high level is valid, parameters are saved (restart parameters are still in), H2031-01 Write 1 first and then write 0; Corresponding message: 601 2B 17 20 01 26 00 00 00 601 2B 17 20 02 00 00 00 00 601 23 10 10 01 73 61 76 65 601 2B 31 20 01 01 00 00 00 601 2B 31 20 01 00 00 00 00 After saving the parameters, clear the fault history again by setting the red font or sending the corresponding message;
Physical terminal Setup process: H2003-03 = 2 (alarm reset), H2003-04 = 0 (low level active), parameter saved (restart parameter is still in); Corresponding message: 601 2B 03 20 03 26 00 00 00 601 2B 03 20 04 00 00 00 00 601 23 10 10 01 73 61 76 65 DI1 to the low level, the current alarm can be cleared; Virtual terminal Setup process: H2017-01 = 2 (alarm reset), 2017-02 Setting high level is effective, parameters are saved (restart parameters are still in), H2031-01 first write 1 and then write 0; Corresponding message: 601 2B 17 20 01 02 00 00 00 601 2B 17 20 02 00 00 00 00 601 23 10 10 01 73 61 76 65 601 2B 31 20 01 01 00 00 00 601 2B 31 20 01 00 00 00 00 After saving the parameters, clear the fault again by simply setting the red font or sending the corresponding message;
