Screening & Earthing (Wall Mounted, Cat C2); Screening & Earthing (Cubicle Mounted, Cat C1) - Parker 650G Product Manual

10-3
Certification for the Drive
Screening & Earthing (wall mounted, Cat C2)
IMPORTANT: This unit must be fitted with the optional top cover.
The unit is installed for Class A operation when wall mounted using the recommended ac
supply filter and having complied with all cabling requirements.
Note: The installation requirements of local safety standards must be achieved regarding the
safety of electrical equipment for machines.

A single-star point earthing policy as shown in Figure 10-2 is required.

The protective earth connection (PE) to the motor must be run inside the screened cable
between the motor and VSD and be connected to the protective earth terminal in the gland
box, or on the VSD.

The external ac supply filter must be permanently earthed. Refer to Chapter 9: "Technical
Specifications" - Earthing/Safety Details.

The signal/control cables should be screened.
Note: Refer to Chapter 9: "Technical Specifications" for details on Cabling Requirements.
Screening & Earthing (cubicle mounted, Cat C1)
Note: The installation requirements of local safety standards must be achieved regarding the
safety of electrical equipment for machines.. Refer to Chapter 3: "Installing the Drive" -
Protective Earth (PE) Connections
The unit is installed for Class B operation when mounted inside a cubicle having 15dB
attenuation between 30 and 100MHz (typically the attenuation provided by a metal cabinet with
no aperture of dimension greater than 0.15m), using the recommended ac supply filter and
having met all cabling requirements.
Note: Radiated magnetic and electric fields inside the cubicle will be high and any components
fitted inside must be sufficiently immune.
The VSD, external filter and associated equipment are mounted onto a conducting, metal
mounting panel. Do not use cubicle constructions that use insulating mounting panels or
undefined mounting structures. Cables between the VSD and motor must be screened or
armoured and terminated at the VSD or locally on the back panel.
Single VSD -
Single Motor
Apply a single point
series earthing
strategy for a single
VSD mounted in a
cubicle as shown.
The protective earth
connection (PE) to
the motor must be
run inside the
screened cable
between the motor
and VSD and be
connected to the
motor protective
earth terminal on the
VSD.
.
Cubicle
Back Panel
External
Filter
As short as possible
AC Supply
(0.3 metres maximum)
Additional PE connectors for
2
where PE1 is <10mm cross-section
Figure 10-1 EMC and Safety Earthing Cabling
www.comoso.com
VSD
U-clip used to
PE2 PE1
connection to
Armoured/screened cable
terminate screen
the back panel
Motor
650G AC Drive