Hitachi WJ C1 Series User Manual

Chapter 1 Safety Instructions/Risks
1-3-1
1.3 Compliance to European Directive (CE)
1.3.1 Caution for EMC (Electromagnetic Compatibility)
 The WJ-C1 inverter complies with Electromagnetic Compatibility (EMC) Directive (2014/30/EU).
When using the inverter in Europe, you must comply with the following specifications and
requirements to meet the EMC Directive and other standards in Europe.
1. Power supply requirements:
 Voltage fluctuation must be -15% to +10% or less.
 Voltage imbalance must be ±3% or less.
 Frequency variation must be ±4% or less.
 Total harmonic distortion (THD) of voltage must be ±10% or less.
2. Installation requirements:
 The WJ-C1 complies with the EMC Directive by installing an EMC filter. Applicable EMC filter
depends on the series and capacity of the inverter. Be sure to use an EMC filter compatible
with the inverter model by referring "Applicable EMC Filter" on the next page.
3. Wiring requirements:
 Use a shielded wire (screened cable) with a length of 25 meters or less for motor wiring.
 If the length of the motor wire exceeds 25 meters, use an output AC reactor to reduce the
leakage current.
 The carrier frequency should be 10 kHz or lower, which satisfies the EMC requirement.
 The main circuit wiring must be separated from the control circuit wiring.
4. Environmental requirements (to be met when a filter is used):
 Ambient temperature: -10 to 50°C (at ND rating), -10 to 40°C (at LD rating) (current derating
required)
 Humidity: 20 to 90%RH (non-condensing)
 Vibration: 10 to 57 Hz: amplitude 0.075 mm
57 to 150 Hz: 9.8 m/s
2
(1.0 G)
 Install location: altitude 1000 m or less (free from corrosive gases and dust)
WARNING
 This equipment must be installed, adjusted, and maintained by qualified
engineers who have expert knowledge of electric work, inverter operation, and
the hazardous circumstances that can occur. Otherwise, personal injury may
result.

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English