Fuji Electric ALPHA5 Smart - Overload Warning Detection: Sequence Output Signal (Reference Value 27); Torque Limit Detection: Sequence Output Signal (Reference Value 26)

CHAPTER 2 WIRING
Description of I/O Signals 2-73
2
 Relevant description
PA1_25 (max. rotation speed (for position and speed))
Specify the upper limit of the servomotor rotation speed which is specified with a parameter.
If the maximum rotation speed is exceeded due to an override or similar, the servomotor rotates at
the specified value.
Under torque control, there is a difference of about 100 r/min between the reference value and the
actual servomotor rotation speed. (This is because the speed is not controlled).
The maximum rotation speed setting is disabled under command pulse input position control.
Torque limit detection: Sequence output signal (Reference value 26)
The signal remains turned on while the output torque of the servomotor is at the torque limit value.
 Function
The torque limit value can be changed according to conditions. For details, refer to "Torque limit 0,
1."
The torque limit detection (26) output is enabled in all control modes.
 Parameter setting
To assign torque limit detection to a sequence output terminal, specify the corresponding value
("26") to the output terminal function setting parameter.
Overload warning detection: Sequence output signal (Reference value 27)
The signal is turned on if the servomotor load factor is at the reference value.
A warning can be issued before the servomotor is suddenly stopped due to an overload alarm or
similar.
 Function
The signal is turned on if the load factor of the servomotor reaches the overload warning level of
PA2_70 (overload warning value).
The signal is automatically turned off if the factor falls below the overload warning level. (There is
no way to reset with a sequence input signal.)
The signal can be issued before the servo amplifier trips due to an overload alarm. Determine the
reference value while referring to the characteristics diagram specified on the next page.
 Parameter setting
To assign overload warning detection to a sequence output terminal, specify the corresponding
value ("27") to the output terminal function setting parameter.