Fuji Electric ALPHA7, Руководство пользователя

Страница: 101 / 662

CHAPTER 2 WIRING
2-54
Description of I/O Signals
2
 Relevant description
(1) Positioning cancel
If positioning cancel (32) is executed while the pause (31) signal remains turned on, the
positioning motion is canceled.
(2) ABS/INC (positioning data)
After the pause (31) signal is turned off, the remaining motion continues without relations to
the absolute (ABS) or incremental (INC) mode of positioning data.
This is not related to the parameter PA1_02: INC/ABS system selection setting value.
(3) Brake timing
The brake is not applied in a pause.
Positioning cancel: Sequence input signal (Reference value 32)
To cancel the start positioning, homing motion and interrupt positioning motion on the way.
 Function
To resume homing motion, turn on the positioning cancel signal and then turn on the homing
signal again.
The interrupt positioning motion is canceled after interrupt input is turned on.
This function is disabled for the pulse operation.
Unlike forced stop, controlled stop will be conducted within the selected deceleration time.
 Parameter setting
To assign positioning cancel to a sequence input terminal, specify the corresponding value ("32")
to the input terminal function setting parameter.
This signal is handled to be always turned off if it is not assigned to the sequence input terminal.
External regenerative resistor overheat: Sequence input signal (Reference value 34)
The thermistor signal of the external regenerative resistor forcibly stops the servomotor.
 Function
If regenerative electric power is high, use an external regenerative resistor, and connect the
resistor thermistor signal to the CONT signal assigned to the external regenerative resistor signal.
If the external regenerative resistor overheat input signal turns OFF (contact b), an external
regenerative resistor overheat (AL.rH2) alarm will occur.
 Parameter setting
If assigning external regenerative resistor overheat to the sequence input terminal, set a value (34)
corresponding to the input terminal function setting parameter.
This signal is handled to be always turned on if it is not assigned to the sequence input terminal.