Fuji Electric ALPHA5 Smart, User Manual

Page: 126 / 636

CHAPTER 2 WIRING
2-78
Description of I/O Signals
2
Type Nature of alarm ALM4 ALM3 ALM2 ALM1 ALM0 Code
Battery warning 1 0 1 1 1 17H
Maintenance
function
Life warning 1 1 0 0 0 18H
BCD error 1 1 0 0 1 19H
Address
error
Out-of-range error 1 1 0 1 0 1AH
Command rejection 1 1 0 1 1 1BH
BCD error 1 1 1 0 0 1CH
Out-of-range error, 0 data write 1 1 1 0 1 1DH
Data error
Negative sign designation 1 1 1 1 0 1EH

If two or more alarms occur simultaneously, alarms are output in the priority specified in the table
above.

The life warning is for the capacitors in the main circuit inside the servo amplifier and the cooling
fan (OR condition).
+OT detection: Sequence output signal (Reference value 38)
-OT detection: Sequence output signal (Reference value 39)
The state of over-travel (±OT) is output.
 Function
The corresponding positive or negative OT detection sequence output is turned on while the +OT
or -OT sequence input signal terminal remains turned off.
 Parameter setting
To assign positive or negative OT detection to a sequence output terminal, specify the
corresponding value ("38" or "39") to the output terminal function setting parameter.

Relevant description
(1) OT detection
The signal is turned on when the servomotor detects the OT signal in either the positive or
negative direction. For details, refer to page 2-67.
(2) Software OT
Set PA2_25 (software OT selection) at "1" to allow movement in the position range between
(PA2_26 (positive software OT detection position)) and (PA2_27 (negative software OT detection
position)).
For details, refer to "PA2_25 to 27 (software OT selection/position command format, software OT
detection position)."