參數(shù)資料
型號(hào)： 77LD1-12C210-02
英文描述： Converter
中文描述： 轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/7頁(yè)
文件大小： 297K
代理商： 77LD1-12C210-02
Apex Signal,
A Division of NAI, Inc.
631.567.1100/631.567.1823(fax) 1-31-01 S 77 LD1 A001 REV B 1.2
170 Wilbur Place, Bohemia, NY, 11716,USA
www.naii.com
/ e-mail:sales@naii.com Code:OVGU1 Page 3 of 7
5.0 V
0.0 V
10.0 V
POSITION
Va
-FS
O
Vb
+FS
(USUAL LVDT CONFIGURATION)
(IN-PHASE)
Va+Vb=10V Va+Vb=10V Va+Vb=10V
Va-Vb=10V Va-Vb=0V Va-Vb=10V
Va=0V Va=5V Va=10V
Vb=10V Vb=5V Vb=0V
Example uses
10Vrms output
Various LDVT configurations
3 WIRE
E
A
B
A+B
A
4 WIRE
E
B
3 WIRE
E
A
B
A-B
A+B
LVDT Connections:
For 3,4 Wire LVDT’s, connect A and B LVDT outputs to Signal A and B inputs. Excitation is not used but should be
connected to enable card to sense and report any excitation loss.
For 2 Wire LVDT’s, connect A-B output of LVDT to card “A” input and connect external excitation voltage to card “B”
input and excitation input.
PROGRAMMING INSTRUCTIONS:
I/O CONFIGURATION
:
This card requires 32 consecutive addresses in the I/O address space on a 32 byte boundary. The base
address is switch settable in the 000-3E0 hex (0 to 992) address range
.
ADDRESS= BASE + OFFSET
BASE
A9
A8
A7
A6
A5
OFFSET A4, A3, A2, A1, A0 Decimal equiv.
SW1*
SW2
SW3
SW4
SW5
“1” = Off “0” = On
32
64
128
256
512
NOTE: Base addresses to avoid:
378-37F Parallel Printer Port 3B0-3BF Monochrome Display 3F8-3FF
Asynch Comm
3F0-3F7
Floppy Disk
A - B
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