Treatment For Inverter After Longtime Store; Inverter Stable Running Environment; Emi Protection - Veichi AC300 Series Technical Manual

AC300 Series Vector Control Inverter Manual

3.2 Treatment for Inverter after Longtime Store

If the inverter store time is over one year, you must pre-charge the aluminum capacitor in the inverter again and
install the inverter after the aluminum capacitor characteristic recovering. For the specific method, please follow the
grads in the chart below and give corresponding proportional voltage for every grad more than 30 mins while the
inverter is no-load.
If the input voltage of one grad is at the action critical point of contactor, fan or other equipment, please increase or
reduce the corresponding input voltage for the grad to avoid any component working under critical state.
Chart 3-1: treatment for inverter after longtime store

3.3 Inverter Stable Running Environment

Installation environment is very important to the best use of this product for long time. Pls install this product in the
environment as the following table requirement.
Table 3-1: Environmental conditions required for reliable operation of AC300 series inverters
Environment
Install place Indoor without direct sunshine
Install temperature -10 ～ +40℃
Store temperature -30 ～ +60℃
Humidity <95%RH, no condensation
Please install the inverter in place as follows:
● Place without oil mist, corrosive gases, flammable gas, dust or etc.
● Place without metal dust, oil, water or etc into inverter (please do not install inverter on
flammable material such as food and etc).
Surrounding
● Place without radioactive material or flammable material.
● Place without poisonous gases or liquid.
● Place with very little salification erosion.
● Place without direct sunshine.
Altitude <1000m, down power for use over 1000 meters
Vibration At 9 to 200 Hz, 5.9 m/s2 (0.6 g)
Installation and Wiring
Requirement
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AC300 Series Vector Control Inverter Manual
● Inverter can not be installed horizontally must be installed vertically.
Installation and ● Please independently install high heating equipment such as braking resistor and etc
cooling which can not be installed in the same cabinet with inverter, installed at the air-in port of
the inverter is strictly prohibited.
● In order to improve the product stability, do please not use the inverter where temperature changes sharply. While
using in closed space such as control cabinet, please use cooling fan or air-condition to cool inverter to avoid
temperature over limit range. Please also prevent inverter from freeze, too low temperature may cause components
freeze fault.
● Derate according to the chart while over temperature limit.
PERMIT OUTPUT CURRENT(%)
100
75
50
25
-10 0 10 20
Chart 3-2:AC300 series inverter derating curve while over permit temperature
● Derate according to the chart while over altitude limit.
PERMIT OUTPUT CURRENT(%)
100
80
0 1000 2000
Chart 3-3:AC300 series inverter derating curve while over permit altitude

3.4 EMI Protection

The inverter is designed to be used in industrial environment with strong electromagnetic interference. Generally
speaking, if the installation quality is good, it is ensured that the inverter can work safely without fault. Please install the
inverter according to the following rules to ensure stable running and avoid electromagnetic interference impact.
● Ensure that all equipment in the cabinet have been connected reliably to the common Y-type earth point or earth
bus with thick and short cable. The motor earth should be as close as possible. Please do not connect the motor case
to the inverter earth terminal or the protective area of control system.
● Ensure that all equipment connected to the inverter have been reliably connected to the same earth net or Y-type
earth point with thick and short cable.
● The conductor has better to be flat and with multi core, what has lower resistance at high frequency.
Installation and Wiring
TEMPERATURE( ℃ )
30 40 50
3000 4000 ALTITUDE(M ）
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