Reading The Position Data From The Absolute Linear Encoder - YASKAWA SGD7S Product Manual
E-7s servopack with analog voltage/pulse train references
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6.13 Absolute Linear Encoders
6.13.4 Reading the Position Data from the Absolute Linear Encoder
6.13.4
Reading the Position Data from the Absolute Linear
Encoder
There are two methods that you can use to read the position data from the absolute linear encoder:
Using the SEN (Absolute Data Request) signal and not using the SEN signal.
Setting the Parameter to Specify Using or Not Using the SEN
(Absolute Data Request) Signal
Using the SEN Signal to Read the Position Data from the Absolute Linear
Encoder
•
When Using the Default I/O Signals (Pn50A = n.
Set Pn515 = n.
•
Allocating the SEN Signal to CN1-40 to CN1-46 on the I/O Signal Connector (Pn50A = n.
Set Pn515 = n.
Refer to the following section for the procedure to allocate input signals.
6.1.1
Information
Reading the Position Data from the Absolute Linear Encoder without
Using the SEN Signal
Set Pn50A to n.
Refer to the following sections for details on the parameters.
14.1
Connecting the SEN (Absolute Data Request) Signal
Allocating the SEN Signal to CN1-4
Type
Input
Circuit Example When the SEN Signal Is Allocated to CN1-4
+5 V
Equivalent to 7406
We recommend a PNP transistor.
6-88
X (SEN (Absolute Data Request Input) Signal Allocation) to 0 to 6 or 9 to F.
X (SEN (Absolute Data Request Input) Signal Allocation) to 0 to 6 or 9 to F.
on page 6-4
Input Signal Allocations
To use the default allocation of the SEN signal and to change the default settings of other I/O
signals (Pn50A = n.
1 and set Pn515 to n.
List of Parameters
on page 14-2
Signal
Connector Pin No.
SEN
CN1-4
Host controller
SEN
High level:
Approx. 1 mA
SG
0 V
0)
1), set Pn515 to n.
8 (Active when 5 V is input to CN1-4).
7 (The signal is always active).
Signal Status
Does not request the position data from the absolute
OFF (open)
linear encoder. (This is the status after the power sup-
ply is turned ON.)
Requests the position data from the absolute linear
ON (closed)
encoder.
SERVOPACK
CN1
Ω
100
4
0.1 μF
Ω
4.7 k
2
0 V
Meaning
1)
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