ABB ACS880-04FXT, Hardware Manual

Page: 99 / 196

￭ Connections to the control unit
Connect the fiber optic, power supply and BGDR cables to the control unit as follows:
BCU control unit ZINT/SOIA BCU control unit BPOW
Drive module 1 XPOW:1 (+24VI) X3:1
V1T ZINT: V1; SOIA: V10 XPOW:2 (GND) X3:2
V1R ZINT: V2; SOIA: V20 - X3:3 (not used)
Drive module 2 BCU control unit BGDR
V2T ZINT: V1; SOIA: V10 (connector XSTO OUT) Drive module 1
V2R ZINT: V2; SOIA: V20 5 (IN1) X7:1
6 (SGND) X7:2
7 (IN2) X8:1
8 (SGND) X8:2
(connector XSTO OUT) drive module 2
5 (IN1) X7:1
6 (SGND) X7:2
7 (IN2) X8:1
8 (SGND) X8:2
Connecting the control cables to the terminals of the
control unit
￭ Control cable connection procedure
1. Route the cables to the control unit.
2. Strip the cable ends and conductors. When connecting to the drive I/O, use electrical
tape or shrink tubing to contain the strands. Elsewhere, twist the outer shield strands
into a bundle, crimp a lug onto it and connect it to the nearest chassis grounding point.
3. Connect the conductors to the appropriate detachable terminals of the control unit, see
section
Default I/O connection diagram (page 110) .
Note: Keep any signal wire pairs twisted as close to the terminals as possible. Twisting the
wire with its return wire reduces disturbances caused by inductive coupling. Keep the shields
continuous as close to the terminals of the control unit as possible. Leave the other end of
the shield unconnected or ground it indirectly via a few nanofarads high-frequency capacitor,
eg, 3.3 nF / 630 V. The shield can also be grounded directly at both ends if they are in the
same ground line with no significant voltage drop between the end points.
Wiring the microswitches of the fuses
Wire the microswitches of the drive input fuses to the DIIL input as shown below or to an
external switch for stopping the drive in case of a blown fuse.
Electrical installation 99
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