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Chapter 7 Exclusive Functions for iS7 Inverter Control/Monitoring
7-17
(2) Monitoring inverter operation statuses (forward/reverse, constant speed,
accelerating/decelerating, stopped, etc)
It is possible to monitor the operation status of iS7 inverter, and make out a ladder program for the sequence
suitable for the operation status with PLC option card.
▶
Common area of inverter
Referring to the parameters (exclusively for monitoring) of inverter common area in the “App. 4-1, page 4,
Appendix,” the addresses of the common area of the inverter operation status are as follows.
Common Area
Address
Function
Detailed Description
BIT0
BIT1
BIT2
BIT3
0: Stop
1: Forward operation
2: Reverse operation
3: DC operation (or 0 speed control)
BIT4
BIT5
BIT6
BIT7
1: During speed searching
2: Accelerating
3: Constant speed
4: Decelerating
5: Deceleration to stop
6: During H/W OC restraint
7: During S/W OC restraint
8: Dwell operating
BIT8
BIT9
BIT10
BIT11
Reserved
BIT8
BIT9
BIT10
0305 Hex
Inverter Operation
Status
BIT11
0: Normal Status
4: Warning Status
8: Fault Status
▶
Special D registers of PLC for inverter status monitoring corresponding to APO76 ~ 83
Register
Use of the Register
Remark
D4474
Data of common area parameter address is
saved set up by APO76 (PLC Rd Data1).
Inverter
→
PLC option
(Monitoring)
D4475
Data of common area parameter address is
saved set up by APO77 (PLC Rd Data2).
Inverter
→
PLC
option
(Monitoring)
D4476
Data of common area parameter address is
saved set up by APO78 (PLC Rd Data3).
Inverter
→
PLC option
(Monitoring)
D4477
Data of common area parameter address is
saved set up by APO79 (PLC Rd Data4).
Inverter
→
PLC option
(Monitoring)
D4478
Data of common area parameter address is
saved set up by APO80 (PLC Rd Data5).
Inverter
→
PLC option
(Monitoring)
D4479
Data of common area parameter address is
saved set up by APO81 (PLC Rd Data6).
Inverter
→
PLC option
(Monitoring)
D4480
Data of common area parameter address is
saved set up by APO82 (PLC Rd Data7).
Inverter
→
PLC option
(Monitoring)
D4481
Data of common area parameter address is
saved set up by APO83 (PLC Rd Data8).
Inverter
→
PLC option
(Monitoring)