6-28
6-5 Alarms and Warnings when a JUSP-NS115
MECHATROLINK-II Option Unit is Mounted
When a Yaskawa JUSP-NS115 MECHATROLINK-II Option Unit (OMRON model number: FNY-
NS115) is mounted to the Servo Driver, the following Option Board alarms and warnings are added to
those listed in 5-2 Alarms.
H Alarms
Display
Alarm code
Error detected Cause of error and countermeasures
AL01 AL02 AL03
A.b6 OFF OFF OFF Gate array error An error was detected at the
communications LSI.
• If the error occurs after powering up again,
replace the Option Board.
A.C6 ON OFF ON Full closed-loop phase
A or B open
An error was detected in the Full
Closed-loop Encoder phase A or B.
• Check for faulty Encoder wiring or faulty
contact.
• The Encoder may be affected by noise. Im-
plement measures against noise, such as
separating the Encoder wiring from the
main-circuit power supply lines.
• The Encoder may be defective. Replace
the Encoder.
• The Servo Driver may be defective. Re-
place the Servo Driver.
A.C7 ON OFF ON Full closed-loop phase
C open
An error was detected in the Full
Closed-loop Encoder phase C.
• Implement the same countermeasures as
for A.C6.
A.E0 OFF ON ON No option or local
address setting
The Option Board is not mounted correctly.
• Mount the Option Board correctly.
The local address is not set correctly.
• The local address setting error occurs
when the local address setting switch SW0
is set to 0 and the local address setting
switch SW2 is set to OFF.
A.E1 OFF ON ON Option timeout There is no response from the Option Board.
• Turn OFF the power and remove and rein-
sert the Option Board. Then try the opera-
tion again.
• If the problem still occurs, replace the Op-
tion Board.
Appendix Chapter 6
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