Table of Contents
Advertisement
72 The control unit
BCU-x2 layout
Description
I/O
I/O terminals (see following diagram)
SLOT 1
I/O extension, encoder interface or
fieldbus adapter module connection.
(This is the sole location for an FDPI-02
diagnostics and panel interface.)
SLOT 2
I/O extension, encoder interface or
fieldbus adapter module connection
SLOT 3
I/O extension, encoder interface, field-
bus adapter or FSO safety functions
module connection
SLOT 4
RDCO-0x DDCS communication option
module connection
X205
Memory unit connection
BATTERY
Holder for real-time clock battery
(BR2032)
AI1
Mode selector for analog input AI1 (I =
current, U = voltage)
AI2
Mode selector for analog input AI2 (I =
current, U = voltage)
D2D TERM
Termination switch for drive-to-drive link
(D2D)
DICOM=
Ground selection. Determines whether
DIOGND
DICOM is separated from DIOGND (ie.
the common reference for the digital in-
puts floats). See the ground isolation
diagram.
7-segment display
Multicharacter indications are displayed as repeated
sequences of characters
("U" is indicated briefly before "o".)
Control program running
Control program startup in progress
(Flashing) Firmware cannot be started.
Memory unit missing or corrupted
Firmware download from PC to control
unit in progress
At power-up, the display may show short
indications of eg. "1", "2", "b" or "U".
These are normal indications immedi-
ately after power-up. If the display ends
up showing any other value than those
described, it indicates a hardware failure.
Advertisement
Table of Contents
