Soloist Hardware Manual
Technical Details
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3-3
3.1.1. Secondary Encoder Channel (J104)
This encoder channel may be used as an input for master/slave operation (handwheel) or
for dual loop systems. This encoder must be a 5-volt RS-422 line driver encoder. It allows
up to an 8 MHz encoder signal (31 nanosecond minimum edge separation), producing 32
million counts per second, after times four (x4) quadrature decoding. See Figure 3-2 for
typical input circuitry of the encoder signals. See section 3.1.1. for the mating connector
part number. See Table 3-3 for the pin numbers on J104 related to the secondary encoder
channel. See section 2.8.1. Encoder Phasing, for more information.
The Auxiliary Marker output is also the PSO output, which has a .02 micro-sec. typical
propagation delay. Pull up and pull down resistors are required on this output, when used
as the PSO output. The EncoderDivider axis parameter should be set to 0, to configure
the Auxiliary Marker as an output.
Table 3-3.
Secondary Encoder Connector Pin-out (J104)
Pin #
Label
Description
In/Out/Bi.
1
Auxiliary Sine +
Secondary Encoder Channel
Input
2
Auxiliary Sine -
Secondary Encoder Channel
Input
10
Auxiliary
Secondary Encoder Channel
Input
11
Auxiliary Cosine -
Secondary Encoder Channel
Input
12
+5 Volt
+5 Volt (500mA. max.)*
Output
19
Auxiliary Marker -
Secondary Encoder Channel / PSO Output -
Bidir.
20
Auxiliary
Secondary Encoder Channel / PSO
Bidir.
21
Common
Common (+5V Supply Return)
-
23
Common
Common (+5V Supply Return)
-
* Total user +5 V power is limited to 500 mA, by an internal re-settable fuse.
+5 VDC
20
J104
19
Aux. Marker
User
Device
Common
User Provided Pull-Up and
Pull-Down Resistors (10k Ohm)
Opto - Isolator
Double-Ended
19
+5 VDC
20
J104
23
Aux. Marker
Pin 19, No
Connection
User Provided Pull-Up Resistor
(10k Ohm)
Opto - Isolator
User Device
NOTE: Signal at pin 20 will only
vary from 1-4 volts DC
Single-Ended
Figure 3-1.
PSO Interface (J104)
10
18
19
26
1
9
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