Instruction manual

8. OUTPUT MODULES
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(2) Internal relay (M) details
(a) In-position signal (M2402+20n)
1) The in-position signal is a signal that comes ON when the number of
droop pulses at the deviation counter falls below the in-position range set
in the servo parameters.
In-position
ON
OFF
Number of
drop PULSES
In-position range setting
t
2) An in-position check is performed at the following times.
• When the servo system power is switched ON
• After automatic deceleration is started in
positioning control
• After automatic deceleration is started due to
the JOG start signal going OFF
• During manual pulse generator operation
• After the proximity dog comes ON during
zeroing
• After deceleration is started by a stop command
• Speed change to zero speed
• Constant check ......................................................... During VIRTUAL
mode operation
(b) Zero pass signal (M2406+20n)
This signal switches ON when the zero point is passed following a servo
amplifier power ON.
Once the zero point has been passed, this signal remains ON until a CPU
reset occurs.
(c) Error detection signal (M2407+20n)
1) This signal switches ON when a minor or major error is detected, and it is
used to determine if an error has occurred.
When a minor error is detected, the corresponding error code is stored at
the minor error code storage area.
When a major error is detected, the corresponding error code is stored at
the major error code storage area.
2) The error detection signal goes OFF when the error reset signal
(M3207+20n) is switched ON.
OFF
OFF
ON
ON
Error detection
Error reset
Minor/major error
detection
During REAL mode
operation