Absolute Data Request Signal (/Sen) - YASKAWA SGDV User Manual

5 Operation

5.9.2 Absolute Data Request Signal (/SEN)

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 SERVO-
PACK.
The following table describes the SEN signal.
Type
Input
Note: The SEN signal must be allocated. It can be allocated to a terminal with Pn515.0. For details, refer to 3.3.1 Input
Signal Allocations
The SEN signal is input at the following timing.
SERVOPACK control
power supply
ALM signal OFF
(Alarm status)
SEN signal
PAO
PBO
Servomotor power
∗
Turn OFF the SEN signal to turn OFF the control power supply.
For the details of the absolute data reception sequence, refer to 5.9.5 Absolute Data Reception Sequence.
5-60
Connector
Signal Name
Pin Number
/SEN Must be allocated
ON
5 seconds max.
OFF
ON (Normal status)
OFF
OFF
ON
Undefined
Undefined
Approx. 560 ms max.
The servomotor will not be turned ON even if /S-ON is turned ON during this interval.
• Maintain ON (closed) for at least 1.3 seconds when the SEN signal is turned OFF and
then ON, as shown in the figure below.
SEN signal
OFF ON (closed)
• SEN Signal cannot be OFF while the servomotor power is ON.
Setting
ON (closed)
OFF (open)
Rotational serial data
Initial incremental
pulses
(Phase A)
Initial incremental
pulses
(Phase B)
OFF ON
1.3 s min.
15 ms min.
Meaning
The host controller sends a request to
the SERVOPACK for the absolute data.
Disabled
OFF
OFF
OFF
Incremental
pulses
(Phase A)
Incremental
pulses
(Phase B)
ON
OFF
Ana-
log
*