1-312
ACH550-UH User’s Manual
Technical data
Recommendation for conductor layout
The following figure compares conductor layout features in motor cables.
Effective motor cable screens
The general rule for cable screen effectiveness is: the better and tighter the cable’s
screen, the lower the radiated emission level. The following figure shows an
example of an effective construction (for example Ölflex-Servo-FD 780 CP,
Lappkabel or MCCMK, NK Cables).
EN 61800-3 compliant motor cables
To comply with EN 61800-3
requirements:
• Motor cables must have an effective screen as described in
above.
• Motor cable screen wires must be twisted together into a bundle (the bundle
length must be less than five times its width) and connected it to the terminal
marked
(at the bottom right-hand corner of the drive).
• Motor cables must be grounded, at the motor end, with an EMC cable gland. The
ground must contact the cable screen all the way around the cable.
• For EN 61800-3 First Environment, Restricted Distribution (CISPR11 Class A),
and EN 61800-3 Second Environment compliance, the drive includes an internal
filter that provides compliance for at least 30 m (100 ft.) motor cable lengths. For
some drives, longer cable lengths require an additional, external RFI/EMC filter
as specified in the table below. The RFI/EMC filters are separate options and
Symmetrical shielded cable: three phase
conductors and a concentric or otherwise
symmetrically constructed PE conductor, and a
shield
Recommended
(CE & C-Tick)
PE
Conductor
and Shield
A separate PE conductor is required if the
conductivity of the cable shield is < 50% of the
conductivity of the phase conductor.
Not allowed for motor cables
(CE & C-Tick)
Shield
PE
PE
Allowed for motor cables
with phase
conductor cross section up to 10 mm
2
.
A four-conductor system: three phase
conductors and a protective conductor, without a
shield.
Allowed
(CE & C-Tick)
Shield
Shield
Insulation Jacket
Braided Metallic Screen
Inner Insulator
L1
L2
L3
Summary of Contents for ACH550-BCR
Page 4: ...iv Manual contents ...
Page 6: ......
Page 12: ...1 8 ACH550 UH User s Manual Table of contents ...
Page 36: ...1 32 ACH550 UH User s Manual Installation ...
Page 70: ...1 66 ACH550 UH User s Manual Application macros ...
Page 335: ...ACH550 UH User s Manual 1 331 Technical data ...
Page 348: ......
Page 382: ...2 36 ACH550 E Clipse Bypass User s Manual Start up ...
Page 398: ...2 52 ACH550 E Clipse Bypass User s Manual Bypass functions overview ...
Page 406: ...2 60 ACH550 E Clipse Bypass User s Manual Application macros ...
Page 544: ...2 198 ACH550 E Clipse Bypass User s Manual Embedded fieldbus ...
Page 584: ...2 238 ACH550 E Clipse Bypass User s Manual Diagnostics ...
Page 608: ......
Page 612: ...3 6 ACH550 UH User s Manual Table of contents ...
Page 622: ...3 16 ACH550 PCR PDR User s Manual Installation ...
Page 641: ......