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2. Drive implementation
2. 7. Power cables
The layout and type of power terminals have changed:
Ring terminals must be used rather than ferrules for the ground terminals, although for the power terminals the ferrules used previously can
be retained if they are in good condition (a flattened ferrule will not make a good connection).
Table of correspondence for power terminals
Disconnecting the RFI filter if using an IT system
Layout of the ATV38 power terminals
ATV38 ATV 61
Power supply L1 R/L1
L2 S/L2
L3 T/L3
DC bus + PO
-PC/-
Braking resistor PA PA/+
PB PB
Motor output U U/T1
VV/T2
WW/T3
Connecting to the Altivar 38 Connecting to the Altivar 61
IT system: Isolated or impedance grounded neutral.
Use a permanent insulation monitor compatible with non-linear loads, such as a
Merlin Gerin type XM200 or equivalent.
Altivar 61 drives feature built-in RFI filters. These filters can be isolated from ground for
operation on an IT system as follows:
Remove the jumper located to the left of the power terminals
t L1 L2 L3
UVWt ATV-38HD18N4 to D23N4
t L1 L2 L3 + -
UVWt ATV-38HD25N4(X) to D79N4(X)
t
++-t ATV-38HC10N4(X)
L1 L2 L3 U V W
L1 L2 L3 tt ATV-38H13N4(X) to C15N4(X)
+
- UVW
L1 L2 L3 tt ATV-38HC23N4(X) to C33N4(X)
-
++UVW
Do not use
U
V
W
L1
U1
W1
V1
M
3 a
L2
L3
A1
R2A
R2C
PA
PB
R1A
R1C
R1B
ATV58pppppp
Braking resistor
(if used)
ATV71HpppM3
U / T1
V / T2
W / T3
R / L1
M
3 a
S / L2
T / L3
A1
R1A
R1C
R1B
R2A
R2C
U1
W1
V1
PWR
+24
P0
PA / +
PB
PC / -
Braking resistor
(if used)
Normal
(filter connected)
IT system
(filter disconnected)