Precautions for Handling
Intro-11
ME0384-4A
10. PLC timer setting
The PLC timer setting should not be at minimum set value.
If "1" is set, some PLCs turn ON somewhere between 0 and 100 ms with a 100 ms timer, or
between 0 and 10 ms with a 10 ms timer.
Consequently, the process which will be performed is the same as when a timer is not set, which
may lead to failures such as failing to position to a specified position No. in positioner mode, etc.
The minimum set value of the 10 ms timer should be "2", and when required to set to 100 ms,
use the 10 ms timer and set it to "10".
11. Battery-less absolute specification actuators
(1) For stepper motor specification, parameter setting allows switching between absolute
specification and incremental specification.
· Parameter No. 83 "Absolute Unit" 0: Not in use (incremental specification)
1: In use (absolute specification)
(2) RCP5 series actuators will perform slight position adjustment operation due to characteristics
of the stepper motor during initial servo ON only, after the power is turned ON.
Maximum travel during position adjustment operation is 0.025 x lead length [mm].
Additionally, until servo turns ON, the present position displayed on the teaching tool will be
the coordinates prior to the adjustment operation.
(3) After the power is turned ON followed by the initial servo ON, home return complete signal
HEND will be output.
(4) If the initial servo ON is executed outside range of the software limit, no error will be output.
After traveling within the range, monitoring of the software limit will start.
(5) If the motor unit is removed from the actuator for motor replacement, etc., be sure to perform
home return motion (absolute reset).
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