YASKAWA DX200 Maintenance Manual page 1095

Alarm Name
Alarm Sub
Number
Code
4740 M-SAF OVERRUN
DETECT
4741 M-SAF PPESP SIG.
ERROR
Meaning Cause
Overrun limit switch control Overrun limit switch
group that is displayed in the released
sub code has tripped.
Connection failure
YSF21 board failure
YSF22 board failure
Overrun limit switch failure (1)Reset the alarm.
YFC22 board failure
Other
Emergency stop signal of Connection failure
programming pendant was
unmatched longer than a
certain time.
Remedy
(1)Reset the alarm.
(2)If the alarm occurs again,overrun limit switch is released. Select
"OVERRUN&SHOCK SENSOR" under sub menu "ROBOT" to reset
the limit switch.
(1)Reset the alarm.
(2)If the alarm occurs again, ple-aseinset , and conduction state of the
cable and connector of the control group to which the overrun limit
switch has tripped.
Check the connection and inserting state of the following manipulator
cables (Between Manipulator and DX200) and connectors.
(1)Reset the alarm.
(2)(2)If the alarm occurs again, Replace the YSF21 board.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF22 board. In a system
where a plurality of YSF22 boards are connected, replace the board,
which is connected to the control group on which the alarm occurred.
(2)If the alarm occurs again, replace the limit switch or an equivalent
switch.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YFC22 board.
In a system where a plurality of YFC22 boards are connected, replace
the board, which is connected to the XIN signal on which the alarm
occurred.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙
YSF22-CN218
∙
Replace the cable of the programming pendant.
∙
Check connectors of the connected outside devices of EMERGENCY
STOP signal of programming pendant line.