ABB ACS 600 MultiDrive, Hardware Manual

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Chapter 3 – Electrical Installation
3-6 ACS/ACC/ACP 604/607 Frequency Converters
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A view of the recommended earthing, mains and motor cable
connections of the ACx 607 is presented below. F denotes a 360
degrees earthing.
ACx 607
Frequency
Converter
U1
V1
W1
3
~
Motor
U2
V2 W2
ACx 604
Converter Unit
UDC+ UDC-
PE
Line Options
U1
W1
V1
Max 6 control cables
F
1)
2)
1) used if the conductivity of the cable screen is <
50 % of the conductivity of the phase conductor.
2) used if the PE rail of ACx 607 is not earthed via
separate PE conductor or via cable screen.
3) used only if local safety regulations do not accept
earthing of the ACx 607 and the motor merely
through the cable screen.
Note: Connecting the fourth conductor of the
cable at the motor increases bearing currents,
thus causing extra wear.
4) The NIOC/NIOCP board is located inside the
module in ACx 604 deliveries.
F
U1
W1
V1
L1 L2 L3 PE
T41
X2
F
3)
For minimum radio frequency
interference (RFI) at the motor
end, earth the cable screen 360
degrees at the lead-through or
earth the cable by twisting the
screen (flattened width > 1/5 ·
length).
du/dt Filter
EMC Line Filter
(option)
NIOC/ NIOCP
NAMC
4)
NIOC/ NIOCP
NAMC