Omron NY532-5400 Troubleshooting Manual page 656

Appendix
Event code Event name
77890000 hex Homing
Opposite
Direction
Limit Input
Detected
778A0000 hex Homing
Direction
Limit Input
Detected
778B0000 hex Homing Limit
Inputs
Detected in
Both Direc-
tions
778C 0000 hex Home Prox-
imity/Homing
Opposite
Direction
Limit Input
Detected
778D 0000 hex Home Prox-
imity/Homing
Direction
Limit Input
Detected
A-10
Meaning Assumed cause
The limit signal in • The Operation Selection at
the direction oppo- Negative Limit Input or Opera-
site to the homing tion Selection at Positive Limit
direction was Input parameter is set to No
detected during a reverse turn.
homing operation.
• The location of the homing
input signal sensors, homing
settings, and homing start posi-
tion cause a limit input to be
reached.
• The input signal sensor wiring
is incorrect or the sensor is
faulty.
The limit signal in • The Operation Selection at
the homing direc- Negative Limit Input or Opera-
tion was detected tion Selection at Positive Limit
during a homing Input parameter is set to No
operation. reverse turn.
• The location of the homing
input signal sensors, homing
settings, and homing start posi-
tion cause a limit input to be
reached.
• The input signal sensor wiring
is incorrect or the sensor is
faulty.
The limit signals in • The wiring of the limit signal is
both directions incorrect.
were detected
• The limit sensor is installed in
during a homing
the wrong location.
operation.
• The contact logic of the limit
signal is not correct.
• The limit sensor failed.
The home proxim- • The wiring of the home proxim-
ity input and the ity signal or limit signal is incor-
limit signal in the rect.
direction opposite
• The home proximity sensor or
to the homing direc-
limit sensor is installed in the
tion were detected
wrong location.
at the same time
• The contact logic of the home
during a homing
proximity signal or limit signal is
operation.
not correct.
• The home proximity sensor or
limit sensor failed.
The home proxim- • The wiring of the home proxim-
ity input and the ity signal or limit signal is incor-
limit signal in the rect.
homing direction
• The home proximity sensor or
were detected at
limit sensor is installed in the
the same time
wrong location.
during a homing
• The contact logic of the home
operation.
proximity signal or limit signal is
not correct.
• The home proximity sensor or
limit sensor failed.
Level
Maj Prt Min Obs Info
S O030
O030
S
S O030
O030
S
S O030
NY-series Troubleshooting Manual (W564)
Reference