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Controllers
6.11 Structure of user data/process data
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
208
System Manual, 06/2016, A2B00096162-AN
6.11.2.5
ZSW1 - status word (StatW)
Status word 1 (ZSW1) is identical to the specification in the PROFIBUS profile "Variable-
speed drives".
Bits 0 to 10 correspond exactly to the specifications for the PROFIBUS profile "Variable-
speed drives". The use and non-use of specific bits is marked accordingly.
The table below describes the assignments of the bits in status word 1.
Table 6- 78 Status word 1 (ZSW1)
Bit
Description
0
Ready for switching on
1
Ready
2
Operation enabled
3
Fault active
4
No OFF2 (no coast down)
5
No OFF3 (no rapid stop)
6
Switch-on inhibit
7
Reserved
8
Reserved
9
Control requested by PLC
10
Reserved
11 … 15
Reserved
The following overview describes the relevant bits in status word 1. See also Image 6-33
Sequential control state graph (Page 216).
Table 6- 79 Explanation of bits in ZSW1
Bit Description
Value Note
0
Ready for switching
on
1
Power supply switched on and system initialized
0
Not ready for switch on
1
Ready
1
Ready to run, system is switched on ("ON" command present), no fault active, system
can start as soon as the "Enable operation" command is given (see also STW1 bit 0)
0
Not ready to run, no "ON" command
2
Operation enabled
1
Operation enabled, drive order is executed (system follows the setpoints)
See also STW1 bit 3
0
Drive order is not executed, operation is locked
3
Fault active
1
Drive is faulty and therefore out of service.
The drive switches to "switching on inhibited" once the fault has been acknowledged
and the cause has been remedied
0
No fault present
4
No OFF2
(no coast down)
1
No OFF2 active
0
Coast down (deenergize) active, an OFF2 command is present
5
No OFF3
(no rapid stop)
1
No OFF3 active
0
Rapid stop (stop) active, an OFF3 command is present