Canworld CDE500 Series, Руководство пользователя

Страница: 14 / 284

CDE500 Vector Control AC Drive Chapter 1 Safety Information and Precautions
-1-
 Altitude and derating
1. In places where the altitude is above 1000 meters and the cooling effect reduces due to thin air, it
is necessary to de-rate the AC drive. The ratio of derating the AC drive is 1 percent for every
increase of 100 meters.
2. In places where the ambient temperature exceeds 40 ℃ , it is necessary to de-rate the AC drive.
The ratio of derating the AC drive is 3 percent for every increase of 1 ℃ .
3. When the setting carrier frequency is bigger than the fault value, it is necessary to de-rate the AC
drive. The ratio of derating the AC drive is 4 percent for every increase of 1K Hz.
 Disposal
The electrolytic capacitors on main circuits and PCB may explode when they are burnt. Poisonous
gas is generated when the plastic parts are burnt. Treat them as ordinary industrial waste.
 Adaptable motor
1. The standard adaptable motor is the four-pole squirrel-cage asynchronous motor. Please
configure related parameter according to the type and the nameplate of the motor.
2. Because the cooling fan and the rotor shaft of the non-variable-frequency motor are coaxial, the
cooling effect will reduce when the speed decelerates. If variable speed is required, add a more
powerful fan or replace it with variable-frequency motor in applications where the motor
overheats easily.
3. Standard motor parameters have been configured inside the AC drive. It is necessary to perform
motor auto-tuning or modify fault values based on the actual condition. Otherwise, the running
result and protection performance will be affected.
4. 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.
5. When the distance between the AC drive and the motor is too long, the insulation withstand
voltage must be considered.
 Lubrication of mechanical device
The mechanical devices such as reduction boxes and gears which need to be lubricated, may
cause damage after a long time low speed running due to bad lubrication.Please conform the
mechanical devices is OK before starting the AC drive.
 Regenerative load
For the application which have energy regeneration such as lifting, the AC drive often stops due to
over voltage protection and a appropriate brake component needs to be considered.
The specific constant voltage energy saving AC drives (CDE500J type) can save the brake
component and avoid over voltage protection for the application with energy regeneration,like
sawing machine,oil pumping machines,etc.