Q&A Reducer
We have posted frequently asked questions from customers in Q&A format. Please click on the question to proceed to the answer.
DCBL Hypoid Motor and DCBL drivers
Words in Q&Aof
●Technical edition
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●Selection edition
Surrounding environment

| Q1 | When communicating with the driver, can I just use the LAN cable that connects my PC to the Internet? |
|---|---|
| A1 |
It cannot be used as is. Because the communication standards are different, you will need to modify the cable for RS-485. |
| Q2 | How to set the parameters? |
| A2 |
You can set up the driver by connecting it to a PC or PLC. Dedicated software is also available for PCs. |
| Q3 | What is the product's lifespan? |
| A3 |
The product lifespan differs depending on the environment and conditions in which it is used. The estimated lifespan is 20,000 hours when used in the recommended atmosphere. Back to Questions |
| Q4 | Can it be used with a single-phase 100V AC power supply? |
| A4 |
No. However, if you are only changing parameter settings, it is possible to supply a single-phase 100V power supply. Back to Questions |
| Q5 | When can I use the Simple Hold function? |
| A5 |
As this is an electrical holding brake, it is suitable for temporarily stopping work on a transport conveyor or other assembly line. |
| Q6 | What is the maximum temperature during normal use? |
| A6 |
Although it depends on the conditions of use, the internal temperature of both the motor and driver is limited to a maximum of 100°C. |
| Q7 | Can I use third-party drivers? |
| A7 |
Be sure to use the dedicated driver as it may cause a malfunction. Back to Questions |
| Q8 | What is the degree of backlash? |
| A8 |
The backlash of the output shaft is 60 minutes at a reduction ratio of 1/10, and 30 minutes at other ratios. Back to Questions |
| Q9 | If the power supply to the driver is cut off, will the motor retain its stopped position? |
| A9 |
This product does not recognize its position using an absolute encoder, so if the power is turned off, the stopped position when restarted will become the home position. |
| Q10 | If a brake is included, can the brake be released without using a driver? Also, if the driver fails, can the brake be released by directly exciting it? |
| A10 |
The brake can be released by directly connecting it to a 24V power supply. |
| Q11 | There are two stopping methods available: simple hold and short brake, but how should they be used? |
| A11 |
By using them according to the load, you can prevent misalignment when the actuator is stopped. |
| Q12 | Is the control between the PLC and the driver done via IO or serial communication (RS-485)? |
| A12 |
Both communication methods are supported. Back to Questions |
| Q13 | How does the holding torque of the simple holding function compare to the rated torque? |
| A13 |
It is about 67% of the rated torque. Also, since it is only a simple holding function, the holding time is short (about a few seconds). |
| Q14 | I can't connect the driver to my PC. What should I check? |
| A14 |
Please check the items below. |
| Q15 | What is the speed fluctuation rate? |
| A15 |
Approximately 0.5%, which represents the percentage change of the average motor speed when external conditions (load, temperature, etc.) change. |
| Q16 | If I want to extend the cable connecting the motor and driver, what is the maximum length? |
| A16 |
The maximum length is 10m. If you need to extend the length, please use DCBL Hypoid Motor extension cable (sold separately). Back to Questions |
| Q17 | What problems are expected to occur if the cable is made longer? |
| A17 |
If the distance exceeds 10m, it may not function properly due to noise. |
| Q18 | What kind of problems are expected to occur if noise occurs in the communication between the motor and driver? |
| A18 |
There is a possibility that the motor's position detection signal will be misrecognized, resulting in the motor moving to the wrong position (passing the stop position, stopping before the stop position, etc.). |
| Q19 | If noise occurs in the I/O signal cable between the driver and control device, what kind of problems are expected to occur? |
| A19 |
There is a risk of the signal being misrecognized, resulting in unstable operation (the motor starting/stopping at unintended times, the output signal turning ON/OFF at unintended times, etc.). Back to Questions |
| Q20 | Which connector should I use for communication? |
| A20 |
If you want to communicate while the motor is running, please use the RS-485 communication connector. |
| Q21 | When is a regenerative resistor necessary? |
| A21 |
When used for lifting or when the inertia ratio is large, the motor may be rotated from the load side to generate power, which may trigger the driver's overvoltage protection. |
| Q22 | How do I splice together the motor extension cables? |
| A22 |
The cable has male and female connectors on both ends, so you can simply connect the cables together using the connectors on the cable. Back to Questions |
| Q23 | Is it possible to disconnect and connect the communication cable CN3 end beyond 50 mm? |
| A23 |
The lead wires are individual wires, so they can be connected by processing end. Back to Questions |
| Q24 | Is the motor extension cable Flexible cable? |
| A24 |
It is not Flexible cable. Back to Questions |
| Q25 | Can I connect using a micro USB connector and communicate while driving? |
| A25 |
The microUSB connector is mainly a port for writing parameters, etc. |
| Q26 | Is the motor powered by DC? |
| A26 |
Although it is called DCBL Hypoid Motor, it is a motor that is powered by an AC power source. |
| Q27 | How is it different from an induction motor? |
| A27 |
Generally, when controlling a three-phase motor, open loop control is used with an inverter. |
| Q28 | What is the difference between a servo motor and a servo motor? |
| A28 |
Servo motors, which offer higher performance and more functions, are therefore more expensive. |
| Q29 | What are the requirements for selecting DCBL Hypoid Motor? |
| A29 |
Please make use of the technical sheets available at the end of the catalogue and on our website. Back to Questions |
| Q30 | What exactly does the "short time" mentioned in the motor characteristics diagram in the catalog refer to? |
| A30 |
It will last for a few seconds when accelerating or decelerating. Please do not operate the motor for long periods of time above the rated speed as this may cause abnormal heat generation. Return to Questions |
| Q31 | Is it possible to change the cable position? |
| A31 |
Available in 90° pitch. Please see the catalog for details. Back to Questions |
| Q32 | Is it possible to handle reduction ratios of 1/80 or more? |
| A32 |
This is available as a special-order product. Back to Questions |
| Q33 | Is it possible to manufacture a parallel shaft type? |
| A33 |
This is available as a special-order product. Back to Questions |
| Q34 | How frequently can the brake be turned on/off? |
| A34 |
Mechanical braking is up to 10 times per minute. Back to Questions |
| Q35 | Can the simple holding function be used in the same way as the servo lock? |
| A35 |
Compared to servo motors, the pulse resolution is lower, so the sudden start/deceleration performance is reduced. |
| Q36 | Is the stopping accuracy improved compared to an induction motor + inverter configuration? |
| A36 |
Since it is controlled using the Hall sensor signal, it can stop more accurately than an induction motor + inverter without feedback control. |
| Q37 | What voltage does the driver output support? |
| A37 |
The output signal can support up to DC30V. |
| Q38 | If there is no brake, will the position shift due to its own weight when stopped? |
| A38 |
A simple holding function is provided, which can prevent position shift due to its own weight for a short period of time (see the parameter settings in Instruction Manuals for the setting method [Selection of the stop method]). |
| Q39 | What is the maximum operating temperature? |
| A39 |
The motor and reducer parts can withstand temperatures between 0 and 40°C, while the driver can withstand temperatures between 0 and 50°C. Back to Questions |
| Q40 | Can it be used outdoors? |
| A40 |
Although the motor is IP65 rated, we do not recommend using it outdoors. Please take measures such as providing a separate cover. |
| Q41 | Is it possible to change to a shaft made of a different material (stainless steel, etc.)? |
| A41 |
We will consider this, so please contact us with your intended use. Back to Questions |
| Q42 | What kind of problems are expected to occur if used in a high temperature environment? |
| A42 |
The circuit board inside the motor may be damaged, causing the motor to stop working. Back to Questions |

