Estun ETS Series - Absolute Encoders

ETS Series AC Servo User's Manual
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（5）Setting the Brake ON/OFF Timing When Servomotor Running
The following parameters can be used to change the /BK signal output conditions when a stop reference is output during
servomotor operation due to the servo OFF or an alarm occuring.
Pn507
Brake Waiting Speed
Setting Range
Setting Unit
Factory Setting
Setting Validation
10～100
1rpm
100
Immediately
Pn508
Brake Waiting Time
Setting Range
Setting Unit
Factory Setting
Setting Validation
10～100
10ms
50
Immediately
/BK Signal Output Conditions When Servomotor Running
The /BK signal goes to high level(brake ON) when either of the following conditions is satisfied:
·When the servomotor speed falls below the level set in Pn507 after servo OFF.
·When the time set in Pn508 is exceeded after servo OFF.
4.4 Absolute Encoders
Absolute Encoder
Type
Resolution
Output Range of
Multiturn Data
Action when limit is exceeded
ETS 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.
Speed
Position
Speed
Position
Pn508
Brake held
Brake released
/BK Output
Servomotor Speed
/S-ON input
or alarm or
power OFF
Servo ON
Servo OFF
Servomotor stopped
by applying DB or
coasting.
(Pn004.0)
Pn507