158 SI-Ethernet User Guide
Issue: 1
Speed feedback (SpeedActual)
The speed feedback word utilises 2 bytes (16 bits) as shown below.
For more information on the speed feedback see section 7.31 AC/DC Drive object
attributes on page 174.
Torque feedback (TorqueActual)
The torque feedback word utilises 2 bytes (16 bits) as shown below.
For more information on the torque feedback see section 7.31 AC/DC Drive object
attributes on page 174.
7.5.16 Extended speed and torque feedback
Input assembly object 0x49 (73
10
)
The PLC or scanner must be configured for 6 input bytes (or 3 input words) if this
assembly object is to be used.
Extended status word
The extended status word consists of 2 bytes (16 bits), with the bits having functions as
shown below.
The DriveState byte returns a code to indicate the operating state of the drive as shown
in Table 7.19.
b15b14b13b12b11b10 b9 b8
SpeedActual (high byte)
b7 b6 b5 b4 b3 b2 b1 b0
SpeedActual (low byte)
b15b14b13b12b11b10 b9 b8
TorqueActual (high byte)
b7 b6 b5 b4 b3 b2 b1 b0
TorqueActual (low byte)
Table 7.18 Basic speed and torque feedback
Data word Function
Word 0 Extended status word.
Word 1 Speed feedback (SpeedActual).
Word 2 Torque feedback (TorqueActual).
b15b14b13b12b11b10 b9 b8
DriveState
b7 b6 b5 b4 b3 b2 b1 b0
At
Reference
RefFrom
Net
CtrlFrom
Net
Ready
Running2
(Rev)
Running1
(Fwd)
Warning Faulted
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