Yaskawa DS387 - Manual (Page 5)

As Figure A4 shows, there are two possible modes of operation for the AI-14B board when it is installed in the
GPD 515. These modes are selected by drive parameter F2-01 (AI-14B Input Selection). When F2-01 is set to
" 0 ", 3-channel individual mode is selected. In this mode the AI-14B replaces the analog inputs on the GPD 515
main control board (see Table A3). When F2-01 is set to " 1 ", 3-channel addition mode is selected. In this mode
the AI-14B adds the three channels together. This new “added” signal replaces the automatic speed reference
input (terminal 13) when reference source is set to "Option PCB" ( b1-01 = 3).
Table A3. AI-14B Configuration in the GPD 515
Mode AI-14B "Equivalent" Terminal on "Gain" "Offset"
Terminal GPD 515 Control Board Parameter *** Parameter ***
3-Channel
TC1 13 H3-02 H3-03
Individual *
TC2 14 H3-06 H3-07
TC3 16 H3-10 H3-11
3-Channel
TC1
Addition **
TC2 13 H3-02 H3-03
TC3
* When using the 3-Channel Individual mode, Channel 1 (TC1) becomes the automatic speed
reference, Channel 2 (TC2) can be configured using parameter H3-09 (see section 5.22 of the
GPD 515 technical manual), and Channel 3 (TC3) can be configured using parameter H3-05.
** In order to use the 3-Channel Addition mode, parameter b1-01 (Reference Source) must be
set to " 3 " (Option Board).
Frequency Reference = TC1 +
TC2
+
TC3 x TC1
10 10
*** See Figure A5.
Figure A4. AI-14B Block Diagram
Channel 1 (TC1)
14 Bit
A/D
Channel 2 (TC2)
14 Bit
A/D
Channel 3 (TC3)
14 Bit
A/D
F2-01 = 0
Three Channel
Individual
F2-01 = 1
Three Channel
Addition
H3-01 Sig.
0
1 0-10V
±10V
H3-01 Sig.
0
1
2 0-10V
±10V
4-20mA
H3-01 Sig.
0
1 0-10V
±10V
U1-15
U1-16
U1-17
100%
+
–
X
H3-03
Bias
+
+
X
H3-02
Gain
Automatic Speed
Reference
100%
+
–
X
H3-11
Bias
+
+
X
H3-10
Gain
Select Via
H3-09
100%
+
–
X
H3-07
Bias
+
+
X
H3-06
Gain
Select Via
H3-05
100%
+
–
X
H3-03
+
+
X
H3-02
Option PCB
Reference
1/10
1/10 X
+
+
+
Yaskawa Electric America, Inc-www.drives.com
02Y00025-0296 Page 5 OF 14
REL. 08/23/91
ANALOG SPEED REFERENCE
(BIPOLAR) (AI-14B) MODEL DS387