3.5
Definition of the Status Word
The status word is 16 bits long. The less significant byte, the basic status block, comprises 8 status
bits with a permanent definition, which reflect the most important drive conditions. The assignment
of the more significant status bits varies for the different status words.
3.5.1
Basic Status Block
The basic status block of the status word contains status information which is required for nearly all
drive applications. These unit conditions are coded as bit information, i.e. each bit has a piece of
status information assigned to it (Fig. 19). The following table shows the assignment of the status
word.
Bit:
Status
Assignment
0
Controller enabled
0 = Controller is inhibited
1 = Controller is enabled
1
Ready for operation
0 = Drive not ready for operation (e.g. no mains supply)
1 = Drive ready for operation
2
Fieldbus mode active
0 = Fieldbus mode not active
1 = Fieldbus mode active, control/setpoint via fieldbus
3
Active ramp generator set
0 = Ramp generator 1
1 = Ramp generator 2
4
Active parameter set
*)
0 = Parameter set 1
1 = Parameter set 2
5
Fault/warning
0 = No fault/warning
1 = Fault/warning present
6
Limit switch CW active
*)
0 = Not activated
1 = Limit switch CW activated
7
Limit switch CCW active
*)
0 = Not activated
1 = Limit switch CCW activated
*) Not available for MOVITRAC
®
31.., size 0
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Permanently defined
Controller enabled
MC 3000 ready for operation
Fieldbus mode active
Active ramp generator set
Active parameter set
Fault / warning
Limit switch CW active
Limit switch CCW active
Status word dependent
00329AEN
Fig. 19: Basic status block for all control words
3
Inverter Control
with Process Data
MOVITRAC
®
31.. Fieldbus Unit Profile
33
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