6.13 Absolute Linear Encoders
6.13.4 Reading the Position Data from the Absolute Linear Encoder
6-89
Allocating the SEN Signal to a General-Purpose Input
A circuit example for when the SEN signal is allocated to CN1-40 to CN1-46 on the I/O signal
connector is provided below.
Refer to the following section for the procedure to allocate input signals.
6.1.1
Input Signal Allocations
on page 6-4
Using the Pull-Up Power Supply in the SERVOPACK
Using an External Pull-Up Power Supply
Type Signal Connector Pin No. Signal Status Meaning
Input SEN CN1-40 to CN1-46
OFF (open)
Does not request the position data from the absolute
linear encoder. (This is the status after the power sup-
ply is turned ON.)
ON (closed)
Requests the position data from the absolute linear
encoder.
Pull-Up Voltage (Vcc) Pull-Up Resistance (R1)
24 V
1.8 kΩ to 2.7 kΩ
12 V max.
820 Ω to 1.5 kΩ
5 V max.
180 Ω to 470 Ω
Circuit Example for Open-Collector Outputs
SERVOPACK
Host controller
PL1, PL2, or PL3 terminal
0 V
+12 V
4.7 kΩ
150 Ω
ON:
1.5 V max.
Approx. 9 mA
SERVOPACK
V
F = 1.5 to 1.8 V
Vcc
Tr 1
V
F
R1
i
Host controller
150
Ω
4.7 k
Ω
Pull-up
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