iii
Cautions for EMC (Electromagnetic Compatibility)
You are required to safety the EMC directive (89/336/EEC) when using the L300P inverter in a
European country. To safety the EMC directive and to comply with standard, follows the checklist
below.
:
This equipment should be installed, adjusted, and serviced by qualified
personal familiar with construction and operation of the equipment and the hazards
involved. Failure to observe this precaution could result in bodily injury.
1. The power supply to L300P inverter must meet these specifications:
a. Voltage fluct/-10% or less.
b. Voltage imb/-3% or less.
c. Frequency var/-4% or less.
d. Voltage distortion THD = 10% or less.
2. Installation measure:
a. Use a filter designed for L300P inverter.
3. Wiring
a. Shielded wire (screened cable) is required for motor wiring, and the length must be less than 20
meters.
b. The carrier frequency setting must be less than 3 kHz to satisfy EMC requirements.
c. Separate the main circuit from the signal/process circuit wiring.
d. In case of remote operating with connector cable, the inverter does not conform to EMC.
4. Environmental conditions – when using a filter, follow these guidelines:
a. Ambient air temperature: -10 - +40 ºC.
b. Humidity: 20 to 90% RH (non-condensing)
c. Vibration: 5.9 m/sec
2
(0.6 G) 10 – 55Hz. (L300P-110-300LF/110-300HF)
2.94 m/sec
2
(0.3 G) 10 – 55Hz. (L300P-370-750LF/370-1320HF)
d. Location: 1000meters or less altitude, indoors (no corrosive gas or dust)
Conformity to the Low Voltage Directive (LVD)
The protective enclosure must conform to the Low Voltage Directive.
The inverter can conform to the LVD by mounting into a cabinet or by adding covers as follows.
1.Cabinet and Cover
The inverter must be installed into a cabinet which has the protection degree of Type IP2X. In
addition the top surfaces of cabinet that are easily accessible shall meet at least the requirements of
the Protective Type IP4X, or which is constructed to prevent small objects from entering inverter.
Fig. Inverter cabinet
WARNING
