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Installing the Converter
3-7
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 SSD
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 3-7 360 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
(optional)
Figure 3-5 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 3-6 Cable and Screen Fixings
If fitted, the AC filter
MUST be placed
between the supply
and the choke.
Failure to do so will
result in unreliable
operation of the drive
and reduced lifetime
of the filter.