Reference
−40−
12.2 Installing and wiring in compliance with EMC Directive
This product has been designed and manufactured to be incorporated in equipment. The EMC Directive requires that
your mechanical equipment in which the product is installed satises the applicable requirements.
The installation/wiring methods of the motor and driver explained here represent the basic methods that are effective
in helping your mechanical equipment conform to the EMC Directive.
The nal level of conformance of your mechanical equipment to the EMC Directive will vary depending on the
control system equipment used with the motor, conguration of electrical parts, wiring, layout, hazard level, and the
like. It therefore must be veried through conducting EMC measures on your mechanical equipment.
Without effective measures to suppress the electromagnetic interference (EMI) caused by the product in the
surrounding control system equipment or the electromagnetic spectrum (EMS) generated by the product, the function
of your mechanical equipment may be seriously affected. This product will conform to the EMC Directive if installed/
wired using the methods specied below.
Connecting a mains lter
Install a mains lter which the customer provides, in the power line in order to prevent the noise generated within the
driver from propagating outside via the AC input line. For mains lters, use the products as shown in the chart, or an
equivalent.
Manufacturer
Single-phase 100-120 V
Single-phase 200-240 V
Three-phase 200-240 V
SOSHIN ELECTRIC CO., LTD HF2010A-UPF, NF2010A-UP NFU3010C-Z1
Schaffner EMC FN2070-10-06 FN3025HP-10-71
•
Overvoltage category II applies to mains lters.
•
Install the mains lter as close to the driver as possible.
•
Use cable clamps and other means to secure the input and output cables rmly to the surface of the enclosure.
•
Connect the ground terminal of the mains lter to the grounding point, using as thick and short a wire as possible.
•
Do not place the AC input cable (AWG18 to 14: 0.75 to 2.0 mm
2
) parallel with the mains-lter output cable (AWG18
to 14: 0.75 to 2.0 mm
2
). Parallel placement will reduce mains lter effectiveness if the enclosure’s internal noise is
directly coupled to the power supply cable by means of stray capacitance.
Connecting the AC power line reactor
When inputting single-phase 200-240 V, insert a reactor (5 A, 5 mH) in the AC power line to ensure compliance with
EN 61000-3-2.
Connecting the external power supply
Use an external power supply conforming to the EMC Directive. Use a shielded cable for wiring the external power
supply over the shortest possible distance. Refer to "Wiring the power supply cable" for how to ground the shielded
cable.
How to ground
The cable used to ground the motor, driver, mains lter and power supply cable (shielded cable) must be as thick
and short to the grounding point as possible so that no potential difference is generated. Choose a large, thick and
uniformly conductive surface for the grounding point. Refer to the p.11 for the recommended grounding method.
Wiring the power supply cable
Use a shielded cable of AWG18 to 14 (0.75 to 2.0 mm
2
) in diameter for the driver power supply cable and keep it
as short as possible. Strip a part of the shielded cable and ground the stripped part using a metal cable clamp that
contacts the stripped cable around its entire circumference, or use a drain wire to make the ground connection.
When grounding the shielded cable, connect both ends (mains lter
side and power supply side) to earth to prevent a potential difference
from generating in the shielded cable.
Cable clamp
Shielded cable
To Next Page
Loading...
Need help?
General
