YASKAWA SGDV SERVOPACK - Page 188

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5.9 Absolute Linear Scales
5-71
5
Operation
 Turn OFF the SEN signal to turn OFF the control power supply.
For the details of the absolute data reception sequence, refer to 5.9.2 Absolute Data Reception Sequence.
• Maintain the high level for at least 1.3 seconds when the SEN signal is turned OFF
and then ON, as shown in the figure below.
• SEN Signal cannot be OFF while the servomotor power is ON.
SERVOPACK control
power supply
5 seconds max.
ON
OFF
OFF
ON (Normal status)
OFF
ON
50 ms
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.
A
LM 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
47
OFF ON (high level)
1.3 s min.
OFF ON
15 ms min.
SEN signal