Mitsubishi Electric A173UHCPU Programming Manual page 44

3. POSITIONING SIGNAL
(13) RLS signal (M2412+20n)
(a)The RLS signal is controlled by the ON/OFF status of the lower stroke end
limit switch input (FLS) to the A278LX or A172SENC from an external
source.
• Lower stroke end limit switch input OFF ...... RLS signal: ON
• Lower stroke end limit switch input ON ........ RLS signal: OFF
(b) The status of the lower stroke end limit switch input (RLS) when the RLS
signal is ON/OFF is indicated in the figure below.
RLS signal: ON
A278LX or A172SENC
RLS
(14) STOP signal (M2413+20n)
(a) The STOP signal is controlled by the ON/OFF status of the stop signal
(STOP) sent to the A278LX or A172SENC from an external source.
• Stop signal OFF ..... STOP signal: OFF
• Stop signal ON ....... STOP signal: ON
(b) The status of the external stop switch (STOP) when the STOP signal is
ON/OFF is indicated in the figure below.
STOP signal: ON
A278LX or A172SENC
STOP
(15) DOG signal (M2414+20n)
(a) The DOG signal is controlled by the ON/OFF status of the external
proximity dog (DOG) switch connected to the A278LX or A172SENC.
(b) Independently of whether the "normally open contact input" or "normally
closed contact input" is specified in the system settings, the proximity dog
signal turns ON when the proximity dog switch turns ON, and the proximity
dog signal turns OFF when the proximity dog switch turns OFF.
(c) At the setting of the "normally open contact input" in the system settings,
the proximity dog input is provided when the proximity dog switch turns
ON. At the setting of the "normally closed contact input", the proximity dog
input is provided when the proximity dog switch turns OFF.
RLS
COM
STOP
COM
3 − 13
RLS signal: OFF
A278LX or A172SENC
RLS
RLS
COM
STOP signal: OFF
A278LX or A172SENC
STOP
STOP
COM