ABB ACS880-77CC, Hardware Manual

Page: 101 / 128

Description
Analog inputs XAI
Analog outputs XAO
Digital inputs, Digital input interlock (DIIL) XDI
Digital input/outputs XDIO
Drive-to-drive link XD2D
+24 V output (for digital inputs) XD24
Ethernet port XETH
External power input XPOW
Relay output RO1 XRO1
Relay output RO2 XRO2
Relay output RO3 XRO3
Not in use in wind turbine converters. XSTO
Not in use in wind turbine converters. XSTO OUT
Not in use in wind turbine converters. X12
Control panel connection X13
Not in use X485
Fiber optic connection to converter modules
1 and 2 (VxT = transmitter, VxR = receiver) V1T/V1R,
V2T/V2R
Fiber optic connection to converter modules
3…7 (BCU-12/22 only)
(VxT = transmitter, VxR = receiver) V3T/V3R
…
V7T/V7R
Fiber optic connection to converter modules
8…12 (BCU-22 only)
(VxT = transmitter, VxR = receiver) V8T/V8R
…
V12T/V12R
Data logger memory card for converter mod-
ule 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. FAULT
Internal voltage supply is OK. PWR 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
BCU-x2 control unit 101