DS4 A
PPENDIX
E - O
PTION
E-3
opened from the LSB to the MSB, the pulse width
will become wider. The marker pulse width selected
has no effect on the quadrature resolution selected
although these two types of signals are normally
related on a standard encoder. The jumper/switch
table that follows shows the wide and narrow marker
pulse selection with each of the eleven encoder
equivalent resolutions available. After the dip switch,
the selected signals are
Anded
together then
Anded
with all of the MSB data lines that were not switch-
selectable. Note that the combination of the two
Nand gates feeding into an Or gate results in the
equivalent of a large Nand gate. The output of the Or
gate feeds into a LS175 flip-flop. The non-inverting
output of the flip-flop drives an LED. The inverting
output of the flip-flop drives a DS8830 or 75183 line
driver. The line driver outputs route straight across a
jumper/header strip (this is used with other options)
and terminate at customer Connector 32.
The encoder resolution (OUT A and OUT B) can be
jumpered for resolutions between 16 to 16384 lines in
binary (2
x
) increments. The OUT Z (Marker Pulse)
can be switch-selected for either a narrow pulse width
or a wide pulse width in relation to the particular
resolution selected. Note that any other marker pulse
width can be selected as it has no direct effect on the
selected resolution of the encoder equivalent signal.
STANDARD 12-BIT CONFIGURATION
Place two jumpers on header #35:
JUMPER PINS I-J
JUMPER PINS K-L
Adjust the Dip Switch #23 & #36 to:
SWITCH A - OFF
SWITCH B - OFF
SWITCH C - OFF
SWITCH D - OFF
SWITCH E - OFF
SWITCH F - ON
SWITCH G - ON
SWITCH H - ON
SWITCH I - ON
SWITCH J - ON
SWITCH K - ON
SWITCH L - ON
Double Row Header #28:
JUMPER 1-2
JUMPER 3-4
JUMPER 5-6
JUMPER 7-8
JUMPER 9-10
JUMPER 11-12
See Schematic Drawing D-93179
E.2.2.2 BDS4-OPT2/3A-02 BOARD
Electronic Encoder with Parallel Output (Without
Drive Signals)
The parallel resolver data option provides 12 - 16 bits
of buffered resolver data output. The signals are
output on one 34-pin ribbon cable connector. The
mating connector for the ribbon cable connector is a
Berg P/N 66900-234 or equivalent. The ribbon cable
pinouts are listed in Table E.2 and on drawing
C-93185.
NOTE
POSOO-POS15 are sequenced
to agree with PMC-960
positioner board signal names
for a 12-bit configuration. Due
to this, POS12-POS15 will
appear to be out of sequence.
E.2.2.3 BDS4-OPT2/3A-03 BOARD
Electronic Encoder with Parallel Output (With Drive
Signals)
This option is similar to that discussed in Section
E.2.2.2 with the exception that it also provides for a
means by which the Industrial Drives' 960 position
controller can interface directly with the BDS4 motor
controller. This is accomplished by adding a small
cable between Connector 32 on the BDS4 OPT2/3A
board and Connector C1 of the BDS4 amplifier. The
BDS4 motor controller signals are identified in the
above table by the addition of an asterisk by the pin
numbers. Connector 37 on the BDS4-OPT2/3A
board is located just to the left of Connector C1
mounted in the top front of the BDS4.
E.2.2.4 BDS4 AND BDS4-OPT2/3A
(BOARD) SYSTEM SPECIFICATIONS
Accuracies, repeatability, and resolution
specifications are recorded in Table E.3.
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