Shenzhen Hpmont Technology Co., Ltd.
Chapter 1 Safety Information and Precautions
HD3N Series User Manual V1.1
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Chapter 1
Safety Information and Precautions
1.1
Safety Definition
Danger:
A Danger contains information which is critical for avoiding safety hazard.
Warning:
A Warning contains information which is essential for avoiding a risk of damage to products or other
equipements.
Note:
A Note contains information which helps to ensure correct operation of the product.
1.2
About Motor and Load
Compared to industrial frequency operation
HD3N series are voltage-type inverters and their output is PWM wave with certain harmonic wave.
Therefore, the temperature, noise and vibration of motor will be a little higher than that at industrial
frequency running.
Constant torque at low-speed running
When HD3N drives a standard motor at low-speed running for a long time, the output torque ratings
will become worse due to the motor cooling is less effective. In that case, we suggest that you should
choose variable frequency motor.
Thermal protection of motor
When choose adaptive motor, HD3N can effectively implement the motor thermal protection.
Otherwise it must adjust the motor protection parameters or other protection measures to ensure that
the motor is at a safe and reliable running.
Running above the rated frequency of motor
If the motor runs exceeding its rated frequency, the noise will increase. Pay attention to the motor
vibration as well as ensure the motor bearings and mechanical devices to meet the requirement of
running speed range.
Lubrication of mechanical devices
At long time low-speed running, provide periodical lubrication maintenance for the mechanical
devices such as gear box and geared motor etc. to make sure the drive results meet the site need.
Mechanical resonance point of load
Set the skip frequency (F05.17 - F05.19) to avoid the load device or the motor mechanical resonance
point.
Danger
Warning
Note
1
