5 Operation
5.9.2 Absolute Data Request Signal (SEN)
5-64
5.9.2 Absolute Data Request Signal (SEN)
The absolute data request signal (SEN) must be input to obtain absolute data as an output from the multi-wind-
ing drive unit.
The following table describes the SEN signal.
The SEN signal is input at the following timing.
∗ Turn OFF the SEN signal to turn OFF the control power supply.
Type Signal Name
Connector
Pin Number
Setting Meaning
Input SEN CN1-4
OFF (low level) Disabled
ON (high level)
The host controller sends a request to
the multi-winding drive unit for the
absolute data.
4.7 kΩ
SEN
4
CN1
SG
2
+5 V
0 V
100 Ω
0 V
0.1 μF
Host controller
Multi-winding drive unit
High level:
Approx. 1 mA
7406
or the equivalent
We recommend a PNP transistor.
Control power supply
5 seconds max.
ON
OFF
OFF
ON (Normal status)
OFF
ON
50 ms
Rotational serial data
(Phase A)
(Phase B) (Phase B)
Approx.
15 ms
400 ms max.
1 to 3 ms
60 ms max.
(90 ms typ.)
The servomotor will not be turned ON even if /S-ON is turned ON during this interval.
ALM signal OFF
(Alarm status)
SEN signal
PAO
PBO
Servomotor power
Undefined
Undefined
(Phase A)
OFF
OFF
OFF
OFF
*
ON
Incremental
pulses
Incremental
pulses
Initial incremental
pulses
Initial incremental
pulses
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