Estun ProNet Plus Series, User Manual

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ProNet Plus Series AC Servo User's Manual
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4.3.5 Instantaneous Power Loss Settings
Determines whether to continue operation or turn the servo OFF when the power supply voltage to the servo drive main
circuit is instantaneously interrupted.
Parameter Signal Name and Meaning
Pn000
b
.0□□□
Continue operation when the power supply voltage to servo drive main circuit is
instantaneously interrupted.
b
.1□□□
An alarm occurs when the power supply voltage to servo drive main circuit is
instantaneously interrupted.
4.4 Absolute Encoders
Absolute Encoder
Type
Resolution
Output Range of
Multiturn Data
Action when limit is exceeded
ProNet Series
16-bit/multiturn
17-bit/singleturn
-32768
～
+32767
·
When the upper limit(+32767)is exceeded in the
forward direction, the multiturn data is -32768
·
When the lower limit(-32768)is exceeded
in the reverse direction, the multiturn data is
+32767.
The absolute position can be read by the MODBUS protocol. In the actual control, the MODBUS protocol can read the
initial position when the servomotor is stopped (S-OFF), then the real-time position during the servomotor is running can
be found from the number of PG divided output pulses.
4.4.1 Selecting an Absolute Encoder
An absolute encoder can also be used as an incremental encoder.
Parameter Meaning
Pn002 b
.□0□□
Use the absolute encoder as an absolute encoder.(Factory setting)
b
.□1□□
Use the absolute encoder as an incremental encoder.
·
The back-up battery is not required when using the absolute encoder as an incremental encoder.
·
After changing these parameters, turn OFF the main circuit and control power supplies and then turn them ON
again to enable the new settings.
4.4.2 Handling Battery
In order for the absolute encoder to retain position data when the power is turned OFF, the data must be backedup by a
battery.
Please purchase the special cable and battery case mabe by Estun if an absolute encoder is used.