Yaskawa DeviceNet Option Card CM059 - Manual (Page 35)

35
Basic Speed Control Input Instance 20 (14 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 13: Drive Basic Speed Control Instance 20 (14 Hex) (INPUT ASSEMBLY)
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 － － － － － Fault Reset － Fwd Run
1 － － － － － － － －
2 Speed Reference (Lower Byte)
3 Speed Reference (Upper Byte)
Data Name Description
Byte 0, Bit 0 Run Fwd
The drive runs forward 0: Stop
1: FWD run
Byte 0, Bit 2 Fault Reset
The drive from fault detection status is reset. 0: Fault reset off
1: Fault reset
Byte 2, 3 Speed Reference
The drive speed reference is set.
Speed command data:
Frequency reference [RPM]×1/2 SS
where SS : Speed Scale *1
Setting range: 0xFFFF Hex
*2
Example: When setting 1800r/min reference, (Speed scale = 0)
Speed reference data: 1800 X 1/2 0 = 0708 Hex
Lower Byte (byte 2) = 08 Hex, Upper Byte (byte 3) = 07 Hex
Notes: *1 Speed scale can be set by explicit messaging communication AC/DC Drive Object (Class 2A Hex) attribute 16.
*2 Setting of a speed exceeding the drive maximum output frequency (E1-04) will be limited by the maximum output frequency (E1-04).
*3 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).