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harmonics, the temperature rise, noise and vibration of the motor will be higher
than those when it runs at standard frequency.
1.2.4 Voltage-sensitive Device or Capacitor Improving Power Factor at the
Output Side
Since the servo driver output is PWM wave, if the capacitor for improving the
power factor or voltage-sensitive resistor for lightning protection is mounted at
the output side, it is easy to cause instantaneous over current in the servo
driver, which may damage the servo driver. It is recommended that such
devices not be used.
1.2.5 Switching Devices like Contactors Used at the Input and Output terminal
If a contactor is installed between the power supply and the input terminal of
the driver, it is not allowed to use the contactor to control the startup/stop of the
driver. If use of such contactor is unavoidable, it shall be used with interval of at
least one hour. Frequent charge and discharge will reduce the service life of
the capacitor inside the driver. If switching devices like contactor are installed
between the output end of the driver and the motor, it shall ensure that the
on/off operation is conducted when the driver has no output. Otherwise the
modules in the driver may be damaged.
1.2.8 Use under voltage rather than rated voltage
If the driver is used outside the allowable working voltage range as specified in
this manual, it is easy to damage the devices in the driver.
When necessary, use the corresponding step-up or step-down instruments to
change the voltage.
1.2.7 Change Three-phase Input to Two-phase Input
It is not allowed to change the IS300 series three-phase servo driver into
two-phase one. Otherwise, it may cause fault or damage to the servo driver.
1.2.8 Lightning Protection
Servo driver of the series has lightning over current protection device, and
has certain self-protection capacity against the lightning. In applications
where lightning occurs frequently, the user shall install additional protection
devices at the front-end of the driver.
1.2.9 Altitude and Derating
In areas with altitude of more than 1,000 meters, the cooling effect of the driver
may turn poorer due to rare air. Therefore, it needs to derate the driver for use.
Please contact our company for technical consulting in case of such condition.
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