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4 Inverter Control
4 - 10 EtherCAT Communication Unit USER’S MANUAL (I574-E1)
Ladder program example
Time chart
0.00
Frequency
setting
Forward
During reverse
operation
Reverse
Frequency
reference
Forward/stop
(word n bit 0)
Reverse/stop
(word n bit 1)
Fault reset
(word n bit 7)
0.02
0.01
0.01 3900.01 30.00 3800.00
3900.00
3900.03
30.000.02
0.03 3800.07
3800.01
END
(001)
0.033900.03
30.00
30.00
3900.15
3900.15
MOV
(021)
D0000
3801
Fault Fault
reset
Fault occurred
During forward
operation
Option - Inverter
connection fault
Option - Inverter
connection fault
Fault
occurred
Fault
occurred
Fault
occurred
Fault
Forward Reverse
Fault reset
The frequency reference data in D00000
is forwarded to word n + 1.
(1) (2) (3) (4) (5) (6) (7)
Frequency setting (0.00)
Forward (0.01)
Reverse (0.02)
During forward operation (word m bit 0)
During reverse operation (word m bit 1)
Frequency reference (word n + 1)
Fault occurred (30.00)
Fault reset (0.03)
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