Eurotherm 590+ Series, Product Manual, Page: 32 / 308

3-6
Installing the Converter
590+ Series DC Digital Converter
Electrical Installation
IMPORTANT: Please read the Safety Information on page Cont. 3 & 4 before proceeding.
WARNING!
Ensure that all wiring is electrically isolated and cannot be made “live”
unintentionally by other personnel.
Note: Refer to Chapter 11: “Technical Specifications” for additional Cabling Requirements and
Terminal Block Wire Sizes.
Cables are considered to be electrically sensitive , clean or noisy . You should already have
planned your cable routes with respect to segregating these cables for EMC compliance.
If not, refer to Chapter 12: “Certification for the Converter”.
If the controller is to be operating in a regenerating mode for extended periods acting as a load
generator for another machine, it is advisable to fit additional protection in the armature circuit.
A dc fuse or high speed circuit breaker will provide this protection. If in doubt, contact
Eurotherm Drives.
Cable Gland Requirements
Use a metal gland to
connect to the cubicle
backplate, near the VSD
(variable speed drive).
It must be capable of
securing a 360 degree
screened connection to
give EMC compliance.
A 360 degree screened
connection can be
achieved as shown.
We suggest a rubber
grommet should be
fitted on holes where a
cable gland is not used.
Figure 3-5 360 Degree Screened Connection
590+
converter
external
filter
motor
power
supply
(clean)
(noisy)
(noisy)
signal/control cable
(sensitive)
motor cable
fuse or suitable
cable
ac
circuit breaker
(RCD not
recommended)
choke
contactor
field cable
Not fitted to
Frame H units
Figure 3-3 Cabling Requirements
PE
power wiring
to motor
rubber
grommet
metal gland must
have 360 degree
screened connection
for EMC compliance
M
PE Protective Earth
International
grounding symbol
1 rubber grommet 2 metal cable gland
for example
Figure 3-4 Cable and Screen Fixings