Omron CP1L Operation Manual page 368

Inverter Positioning
Referencing the
Automatically Calculated
Inverter Frequency
Command Value
334
Operation
Outputs not
accepted
Error counter
If the following settings are made in the PLC Setup, the inverter frequency
command value will be calculated automatically and set in A23 in the Auxiliary
Area. These settings are on the Inverter Positioning 0 Tab Page in the PLC
Setup.
• Power Supply Frequency for One Motor Revolution per Second (0.1-Hz
increments)
• Number of Encoder Pulses for One Motor Revolution
• Error Counter Cycle (x 4 ms)
The inverter frequency command value in A23 is accessed and converted to
an analog output signal. The CP1W/CPM1A-DA041 has a resolution of 6,000,
so the conversion to an analog signal is performed as follows:
6,000 ÷ 60 Hz (inverter's maximum output frequency) ÷ 100 = 1
The conditions are as follows:
P_On
Always ON Flag
T0 A26.00
Analog
Operation
conversion
Command Bit
trigger
T0
Analog
conversion
trigger
Forward
Command Bit
A26.01
T0
Analog
A26.01
conversion
trigger
Forward
Command Bit
In this example, the results of *U and /UL are 1, so the value in A23 is moved
directly to D102 with MOV.
Inverter
Encoder
TIM
0
#0003
*U
A023
&100
D1010
/U
D1010
&100
D1020
MOV
D1020
Operation
D102
Command Bit
A26.00
MOV
#0000
A26.03
D102
In-position Flag
Reverse
Command Bit
A26.02
A26.02
Reverse
Command Bit
Inductive motor
Time for data for Analog Output Unit to become valid.
To convert to the analog output value, the inverter
frequency command value is multiplied by 100
(analog resolution of 6,000 divided by inverter's
maximum frequency of 60) and stored in D1010
and D1011.
The frequency command value is divided by
100 to convert to Hz and stored in D1020.
The contents of D102 is set in D1020.
An analog value of 0 for the
stop command set in D102.
100.02
Forward/Reverse Command
Bit turned ON.
100.03
Section 5-3