174 SI-Ethernet User Guide
Issue: 3
The individual bits of the low byte of the extended status word are described in Table 7-
20 Extended status word (low byte) on page 174.
Speed feedback (SpeedActual)
The speed feedback word utilises 2 bytes (16 bits) as shown below.
Table 7-19 DriveState codes
Code b15 - b8 State Description
1 00000001 Startup This state is skipped over on CT drives.
2 00000010 Not_Ready Inhibit.
3 00000011 Ready Ready.
4 00000100 Enabled Run or Stop.
5 00000101 Stopping Deceleration or Injection.
6 00000110 Fault_Stop AC_UU (this will only occur if Mains Loss is enabled).
7 00000111 Faulted Tripped.
0 00000000 Vendor Specific
All other DriveType states, e.g. Scan, Orienting, Regen
Active, etc.
Table 7-20 Extended status word (low byte)
Name Bit Description
Faulted b0
Indicates whether the drive is OK or tripped.
0=OK (Pr 0.10.001=1).
1=Tripped (Pr 0.10.001=0).
Warning b1 Indicates if one of the drive alarms is active.
Running1
(Fwd)
b2
Indicates if the drive is running in the forward direction.
0=False, 1=True.
Running2
(Rev)
b3
Indicates if the drive is running in the reverse direction.
0=False, 1=True.
Ready b4
The ‘Ready’ bit is set depending on which state the drive is in.
Ready = True.
Enabled = True.
Stopping = True.
All others = False.
CtrlFromNet b5
Indicates if the drive is being controlled from the ‘Drive Control Word’.
0=False, 1=True.
RefFromNet b6
Indicates if the speed reference is derived from Pr 0.01.021.
0=False (Pr 0.01.050<>1 OR Pr 0.01.049<>3).
1=True (Pr 0.01.050=1 AND Pr 0.01.049=3).
AtReference b7
Indicates if the drive speed has reached the set reference.
0=False (Pr 0.10.006=0).
1=True (Pr 0.10.006=1).
b15 b14 b13 b12 b11 b10 b9 b8
SpeedActuall(high byte)
b7 b6 b5 b4 b3 b2 b1 b0
SpeedActual (low byte)
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