79
Position Control by Absolute Value
Overview
Position is controlled by absolute value. In this example, position is
commanded to +1000 using R4.0 input and -1500 using R4.1 input.
Speed decreases 300 pulses before the stop point. Also, pulse output
is not used, and inverter start/stop is controlled by CMP0 signal, and
high/low speed is controlled by CMP1 signal.
Install Pulse I/O unit in slot No.0
Start input (Move to +1000)
(CH0 IN-A)
Count phase signals
from encoder.
(CH0 IN-B)
16 points output unit
0 V(24V DC)
(CMP1)
Occupied I/O area
R0
R1
R2
R3
R4
R5
Start/Stop
(CMP0)
Start input (Move to -1500)
High/Low
Speed
Motor
Encoder
Inverte
Emergency stop
Reverse instruction
16 points input unit
For more precise measurements, pulse output function can be used and the
inverter can be replaced with a servo drive.
NOTE