Programming Examples - Mitsubishi Electric FR-A8NC Instruction Manual

8

PROGRAMMING EXAMPLES

This chapter provides programming examples which control the inverter with sequence programs.
Item
Reading the inverter status
Setting the operation mode
Setting the operation commands
Setting the monitoring function
Reading a parameter value
Writing a parameter value
Setting the running frequency
(running speed)
Reading the fault records
Inverter reset
 System configuration for programming example
Power supply CPU
PLC
Q61P-A1 Q02CPU
Terminating
resistor
74
PROGRAMMING EXAMPLES
Reading the inverter status from the buffer memory of the master station
Selecting the network operation mode
Commanding the forward rotation and middle speed signals
Monitoring the output frequency
Reading the value of Pr.7 Acceleration time
Setting "3.0 s" in Pr.7 Acceleration time
Setting to 50.00 Hz
Reading the inverter faults
Perform inverter reset at an inverter alarm occurrence.
Master station
Input unit
QJ61BT11N
QX40
(X/Y00 to 1F)
(X20 to X2F)
X20
Station 1
Inverter
Pr.542 = 1
FR-A8NC
Pr.544 = 0
Program example
Output unit
QY40P
(Y30 to Y3F)
Y30
Station 2
Inverter
Pr.542 = 2
FR-A8NC
Pr.544 = 0
Refer to page
77
78
79
80
81
82
83
85
86
Terminating resistor
selection switch is on