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11.
Automatic pulse reference detection
11.1 The meaning of automatic pulse reference detection
This function checks the state of no pulse inputs when the first SVON input is ON, and then detects the
state of the pulse input circuit (photo coupler ON/OFF). This takes priority over the set value determined
by the parameter (Option set 1) to set the pulse-signal input method.
(This detection is "H/L reference " only. "Pulse Input Method" cannot be detected.)
When the first SVON input is ON during the pulse inputting, the H/L reference cannot be detected.
If the H/L reference cannot be detected correctly, please refer to "11.3 Automatic pulse reference
detection OFF"
11.2 Operation procedure using automatic detection function
Refer to the operation procedure for parallel IO and timing chart below.
- Timing chart -
- Procedures -
(1)
Apply the power (Driver and PLC).
↓
(2) *ALARM output is turned ON.
*ESTOP is turned ON
Turn off the PLC pulse output.
↓
(3) The SVON input is turned ON.
Detect pulse reference.
↓
(4) The SVRE output is turned ON.
The time taken for SVRE output to turn
on depends on the electric actuator type
and the operating conditions. (When
power is applied, it may take about 10
seconds (up to 20 s) depending on the
position of the electric actuator.)
The electric actuator with lock is unlocked
↓
(5) SETUP is turned ON.
↓
(6) BUSY is turned ON.
(The electric actuator moves.)
↓
(7) SETON and INP are turned ON.
When the BUSY output is turned OFF, the return to origin has been completed.
Detection pulse reference voltage
(output OFF) during this timing
Power
SVON
SETUP
BUSY
SVRE
SETON
INP
*ALARM
*ESTOP
Extemal lock
Input
Return to origin
Output
Electric actuator
24V
0V
If the actuator is within the "In position"range,
After the reset, the
driver will be turned on.
OFF
ON
ON
OFF
ON
OFF
SPEED
0mm/s
･
･
・
・
・
・
・
・
・
・
・
