Epson RC420, Manual

Page: 82 / 172

Setup & Operation 8.2 Timing Specifications (I/O Remote Settings)
72 RC420 Rev.9
8.2 Timing Specifications
8.2.1 Design Notes for Remote Input Signals
The following charts indicate timing sequences for the primary operations of the
Controller.
The indicated time lapses (time durations) should be referred to only as reference value
since the actual timing values vary depending on the number of Manipulators and the
number of tasks running, as well as CPU speed of the Controller. Check carefully and
refer to the following charts for the timing interrelation when you enter an input signal.
During system design, make sure that you actuate only one remote input operation at a
time, otherwise an error will occur.
The pulse width of an input signal must be 25 or more milliseconds to be detected.
8.2.2 Timing Diagram for Operation Execution Sequence
Power High
Output
Depending on
HOME motion
CmdRunning
Output
MotorOn
Output
AtHome
Output
20 20
20 20 20
20 12 20 150
300
40
50
About 1000
About 1000
MotorOn
Input
MotorOff
Input
Home
Input
PowerHigh
Input
PowerLow
Input
[Unit: msec]