ABB ACS880-104

Description
Analog inputsXAI
Analog outputsXAO
Digital inputs, Digital input interlock (DIIL)XDI
Digital input/outputsXDIO
Drive-to-drive linkXD2D
+24 V output (for digital inputs)XD24
Ethernet port – Not in useXETH
External power inputXPOW
Relay output RO1XRO1
Relay output RO2XRO2
Relay output RO3XRO3
Safe torque off connection (input signals)XSTO
Safe torque off connection (to inverter mod-
ules)
XSTO OUT
(On the opposite side) Connection for FSO-
xx safety functions module (optional)
X12
Control panel / PC connectionX13
Not in useX485
Fiber optic connection to modules 1 and 2
(VxT = transmitter, VxR = receiver)
V1T/V1R,
V2T/V2R
Fiber optic connection to modules 3…7 (BCU-
12/22 only)
(VxT = transmitter, VxR = receiver)
V3T/V3R
…
V7T/V7R
Fiber optic connection to modules 8…12
(BCU-22 only)
(VxT = transmitter, VxR = receiver)
V8T/V8R
…
V12T/V12R
Data logger memory card for inverter module
communication
SD CARD
Real-time clock battery voltage is higher than
2.8 V. If the LED is off when the control unit
is powered, replace the battery.
BATT OK
The control program has generated a fault.
See the firmware manual of the supply/invert-
er unit.
FAULT
Internal voltage supply is OKPWR OK
Writing to memory card in progress. Do not
remove the memory card.
WRITE
XDI
XSTO
X485
XD2D
XRO1
XRO2
XRO3
XDIO
XD24
XSTO
OUT
XAI
XAO
XPOW
Control units of the drive 303