7
EDH0185En1020 — 07/11
VP-25XA
Precision Compact Linear Stage
Encoders are “differential pair” (type RS422) type output signals. Using
these signals permits a high immunity to noise. Emission circuits generally
used by Newport are 26LS31 or MC3487. Reception circuits to use are
26LS32 or MC3486 respectively.
5.5
Pinouts
The 25-pin Sub-D connection for the VP-25XA stage is given in the following
table:
Pin #21
Pin #22
Newport
Stage
User
Output Signals
Encoder Phase B
Encoder Phase B
Encoders
& Sensors
Power Supply
+5 V
±
5%
150 mA max.
0 V
Pin #24
Pin #20
Encoder Phase A
Encoder Phase A
Pin #23
Pin #19
Index Pulse Phase I
Index Pulse Phase I
Pin #25
Pin #15
}
UE25CC:
(M-)VP-25XA
1
+ Tachometer
2
N.C.
3
– Tachometer
4
N.C.
5
+ Motor
6
+ Motor
7
– Motor
8
– Motor
9
N.C.
10
N.C.
11
N.C.
12
N.C.
13
Mechanical Zero
14
Shield Ground
15
Index Pulse I
16
0 V logic
17
+ End-of-Run
18
– End-of-Run
19
Encoder Phase A
20
Encoder Phase B
21
Encoder Power: +5 V
22
0 V Encoder
23
Encoder Phase /A
24
Encoder Phase /B
25
Index Pulse /I
13
25
14
1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com