Fuji Electric ALPHA7, User Manual

Page: 106 / 662

CHAPTER 2 WIRING
Description of I/O Signals
2-59
2
Torque control: Sequence input signal (Reference value 38)
This signal is enabled only when parameter PA1_01 (control mode selection) is set to "6" (extension
mode).
 Function
Turn on to conduct torque control in the extension mode.
The servo amplifier is in the torque control mode while the torque control signal assigned to a
CONT input signal remains turned on.
The torque of the output shaft of the servomotor can be controlled.
The torque is actually output while the forward command [FWD] or reverse command [REV] signal
remains turned on.
The torque command value depends on the input voltage applied to the TREF terminal. (Refer to
the table below.)
The direction of rotation varies between the forward command [FWD] and reverse command [REV]
signals.
Voltage applied to TREF terminal Output torque (rated torque 100 [%])
±3[V] ±100[%]
*
* PA3_33: If the torque command scale value is the default value.
 Parameter setting
To assign torque control to a sequence input terminal, specify the corresponding value ("38") 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.