YASKAWA DX200 Instructions Manual page 69

HW1481973
8 Error Indication
8.1 LED Indicators
LED Status
NS blinks Time-out error
in red
NS lit in Communication
red fatal error
8-3
Indications and Corrective Actions
A time-out error occurs between the
DX200 and the connected device.
• Check the wiring and connection of the
DeviceNet cable and connector.
• Check the voltage and connection of the
communication power supply.
• Check the transmission speed of each
device.
• Check the terminator value (121) of the
mounted terminator and its mounted
status.
• Check the operation status of the
DeviceNet master device.
• Check if the number of I/O points for the
connected master or slave corresponds
to the number of I/O allocated points.
• Raise the setting for the communications
cycle of the master device, and recheck
communications.
A node address is overlapped, or a bus
OFF is detected on the network.
• Reset the node address so that the node
address is not overlapped.
• Check the wiring and connection of the
DeviceNet cable and connector.
• Check the voltage and connection of the
communication power supply.
• Check the transmission speed of each
device.
• Check the terminator value (121) of the
mounted terminator and its mounted
status.
• Check the transmission distance.
• Check if there is no noise generating
factor.
• Replace the XFB01B board.
HW1481973
69/70