IAI America ERC3 - Manual (Page 429)

Chapter 10
Appendix
10.5
Example of Basic Positioning Sequence
(PIO Patterns 0 to 3 in PIO Converter)
419
[12] Commanded Position No. Output Circuit
Depending on the result of the ready circuit, this circuit converts position No. to the binary code
and outputs the data from PLC to ERC3 and PIO converter.
156
OUT8
PC1
Command Position 1
AUX18
Position 1
Set
AUX20
Position 3
Set
AUX20
Position 3
Set
159
OUT9
PC2
Command Position 2
AUX19
Position 3
Set
[Position No.1]
[Position No.2]
[Position No.3]
[13] Start Signal Output Circuit
After 20msec from the output of position No., this circuit outputs the start signal from PLC to
ERC3 and PIO converter.
162
166
AUX9
Auxiliary
Position 1
Positioning
Start
AUX12
Auxiliary
Position 2
Positioning
Start
AUX15
Auxiliary
Position 3
Positioning
Start
OUT13
CSTR
Waiting for start
Start
<Timer 5 (bit)>
a116
Waiting for Start
TIM5
200ms
is set to
TIM5
20msec
Set this signal to be 2 to 4 times as
long as PLC scanning time so that it
is turned ON after position No. is output
securely. (The ERC3 and PIO converter
input condition is defined to turn the signal
ON after 6msec.)
Each of 2 , 5 , and 8 signals is turned OFF if the actuator is
started by start signal. It is because PEND it turned OFF to turn
the moving circuit, a main circuit, ON. (Handshake)