Alarm
code
Alarm
sub-
code
Name Description Check point and remedy reference
(Er6)
1
Operation error
(1)
key is pressed
while the
key is en-
abled (parameter
H96=1, 3)
Check if the
key has been pressed while
there is a RUN command in the terminal
block or communication path.
→ If unintended operation, review param-
eter H96 settings.
2 to 6
(2) With the start check
function enabled (pa-
rameter H96=2,3), the
start check function has
operated
Check if the following operation has been
performed while there is a RUN command
input.
• Power supply ON
• Alarm cancel
• Switch to link RUN command
→ With er6 occurring, review sequences,
etc. so that a RUN command is not in-
put.
If unintended operation, review param-
eter H96 settings.
(Before clearing the alarm, turn the
RUN command OFF
.)
1
(3) Forced stop “STOP”
(digital input terminal)
turned OFF
Check if forced stop “ST
OP” has been
turned OFF.
→ If unintended operation, review terminal
DI1 to DI7 parameter E01 to E05, E98,
E99 settings.
8
(4) Brake check signal
“BRKE” and brake con-
trol signal “BRKS” mis-
match
Check that the signal input into the X termi-
nal to which brake check signal “BRKE” is
assigned and the brake control signal
"BRKS" output from the Y terminal match.
• Signal disconnection
• Check that the logic matches
• If there is a delay
, adjust the parameter
H180 (brake control signal) time.
30
(5) A RUN command
(FW/REV signals are
ON) is input while the
power recovery restart
prevention (USP) signal
is input
Check the power recovery restart prevention
(USP) signal.
9 Troubleshooting
9-7
M1 Series Standard Type User's Manual (I669)
9-1 Alarm Display and Remedies
9
9-1-2 Alarm Code List
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