Emotron VS Series Quick Start Guide
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1.2.9 Do Not Apply a 3-Phase Input Inverter to 2-Phase Input Applications
Do not apply a 3-phase input inverter to 2-phase input applications. Otherwise, it will result in faults
or damage inverter.
1.2.10 Lightning Protection
VS has integrated lightning over-current protection device which has certain self-protection
capacity against the lightning. Additional protection devices have to be installed between inverter
and power supply in the area where lightning occurs frequently.
1.2.11 Altitude De-rating
In places where the altitude is above 1000 m and the cooling effect reduces due to thin air, it is
necessary to de-rate the AC drive. Contact CG for technical support.
1.2.12 Some special usages
If wiring that is not described in this manual such as common DC bus is applied, contact the agent
or CG for technical support.
1.2.13 Cautions for Inverter Disposal
The electrolytic capacitors on the main circuit and PCBA may explode when they are burnt.
Emission of toxic gas may be generated when the plastic parts are burnt. Please dispose inverter as
industrial wastes.
1.2.14 Adaptable Motor
The standard adaptable motor is adaptable industrial asynchronous induction motor or PMSM.
For other types of motor, select a proper AC drive according to the rated motor current.
The cooling fan and rotor shaft of non-variable-frequency motor are coaxial, which results in
reduced cooling effect when the rotational speed declines. If variable speed is required, add a more
powerful fan or replace it with variable-frequency motor in applications where the motor overheats
easily.
The standard parameters of the adaptable motor have been configured inside the AC drive. It is
still necessary to perform motor auto-tuning or modify the default values based on actual conditions.
Otherwise, the running result and protection performance will be affected.
The AC drive may alarm or even be damaged when short-circuit exists on cables or inside the
motor. Therefore, perform insulation short-circuit test when the motor and cables are newly installed or
during routine maintenance. During the test, make sure that the AC drive is disconnected from the
tested parts.