Yaskawa DeviceNet Option Card CM059 - Manual (Page 36)

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Basic Speed Control Output Instance 70 (46 Hex)
This function is the basic I/O instance of Assembly Object Class (04 Hex) Attribute (03 Hex), which defines DeviceNet AC
Drive Profile. Both input/output use 4 bytes each.
Table 14: Drive Basic Speed Control Instance 70 (46 Hex) (OUTPUT ASSEMBLY)
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 － － － － －
During FWD
Run (Fwd)
－ Fault
1 － － － － － － － －
2 Speed Monitor (Lower Byte)
3 Speed Monitor (Upper Byte)
Data Name Description
Byte 0, Bit 0 Fault
The drive fault detection status is displayed. 0: Normal
1: During fault detection
Byte 0, Bit 2 During FWD
The drive run status is displayed. 0: During Stop/REV.
1: During FWD/DC braking
Byte 2, 3 Speed Monitor
The drive speed is displayed.
Speed monitor data: Frequency monitor [r/min]×1/2
SS
where
SS
: Speed Scale
*1
Example: If speed monitor data is 1000RPM (03E8 Hex), speed scale = 0
Lower Byte (byte 2) = E8 Hex, Upper Byte (byte 3) = 03 Hex
Frequency monitor: 03E8 Hex X 1/2
0
X = 1000r/min.
Note: *1 Speed scale can be set by explicit messages communication AC/DC Drive Object (Class 2A Hex) attribute 16.
*2 When applying a speed reference make sure to set No. of poles (2 ~ 39) to the drive parameter o1-03 (frequency reference set/display unit
selection).