YASKAWA MOTOMAN YRC1000 - 9.26.20 GP safety output monitoring signal

System Setup
9 - 305
9.26.20 GP safety output monitoring signal
The DX200 or an earlier version of the controller had the dedicated connection terminal for
the monitoring signal. However, for downsizing, the YRC1000 supports the monitoring
signal by using the safety logic circuit instead of the dedicated connection terminal.
4777 TRANSMISSION ERROR (M-SAF FILE)
1 Safe logic circuit informa-
tion transmission error was
detected.
An alarm occurred while transferring the
safety logic circuit file to the machine safe-
ty circuit board.
Reset the alarm, and re-send the safety
logic circuit file.
2 Timer delay information
transmission error was de-
tected.
An alarm occurred while transferring the
safety logic circuit file to the machine safe-
ty circuit board.
Reset the alarm, and re-send the safety
logic circuit file.
3 M-safety signal alloc infor-
mation transmission error
was detected.
An alarm occurred while transferring the
safety logic circuit file to the machine safe-
ty circuit board.
Reset the alarm, and re-send the safety
logic circuit file.
4 Safety signal board alloc
information transmission
error was detected.
An alarm occurred while transferring the
safety logic circuit file to the machine safe-
ty circuit board.
Reset the alarm, and re-send the safety
logic circuit file.
253 M-safety command recep-
tion time out was detected.
No response from the machine safety cir-
cuit board while transferring the safety
logic circuit file.
Reset the alarm, and re-send (perform the
writing) the safety logic circuit file.
If the alarm occurs again, replace the
safety circuit board.
254 Safe logic circuit write error
was detected.
Failure to transfer the safety logic circuit
file to the machine safety circuit board.
Please re-send the safety logic circuit file.
If the alarm occurs again, refer to
9.26.17.2 "Safety flash data erase or re-
set" at page 293 or more details.
255 Safe logic circuit cancel er-
ror was detected.
Failure to sending the cancel command
while transferring the safety logic circuit
file to the machine safety circuit board.
Please re-send the safety logic circuit file.
If the alarm occurs again, refer to
9.26.17.2 "Safety flash data erase or re-
set" at page 293 or more details.
Alarm
No.
Sub
code
Message Remedy