CHAPTER 6 DEVICENET COMMUNICATION FUNCTION
13
6.3.2 Expansive I/O Instance
This I/O instance is standard I/O instance, which is defined by AC drive profile in DeviceNet.
Master to SJ-DN2: Instance21 (P046: 21)
Byte
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
-
NetRef
NetCtrl
-
-
Fault
Reset
Run Rev
Run Fwd
1
-
2
Speed Reference (Low Byte)
3
Speed Reference (High Byte)
Data
Contents
Run Fwd
The inverter is running forward. 0:Stop 1:Run forward
Run Rev
The inverter is running reverse. 0:Stop 1:Run reverse
Fault Reset
When the Bit is set to “1”, the trip states can be cancelled.
0:- 1:Fault reset
NetCtrl
It indicates method of operation command.
0:Method of operation command, which is selected at operation command
selection(A002).
1:Method of Operation command from DeviceNet is valid.
NetRef
It indicates method of frequency command.
0:Method of frequency command, which is selected at frequency command
selection(A001).
1:Method of frequency command from DeviceNet is valid.
Speed Reference
It indicates speed command of the inverter.
[P049:Except for 0]
Rotational speed setting: Speed Reference(min
-1
) / 2
SS
SS: Speed scale
Range of setting:0-24000(min
-1
) (Resolution: 1 min
-1
) Magnification: 1 time
e.g.) When the order of speed setting is 1800 min
-1
, (Speed scale:0)
Speed Reference=1800/2
0
=1800=0708(Hex)
[P049:0]
Operational frequency setting (Resolution: 0.01Hz).
Range of setting:0.00 to 400.00(Hz) Magnification: 100 time
(Note) When set both Run Fwd and Run Rev to 1, the inverter executes the command, which is inputted
first.
