Siemens SINAMICS S120 - Page 103

Communication via PROFIBUS
Cyclic communication
4-103
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
STW1 (status word 1)
See function diagram [2452].
Table 4-8 Description of STW1 (status word 1)
Bit
Meaning Comments BICO
0 Ready to power up
1 Ready to power up
Power supply on, electronics initialized, line
contactor released if necessary, pulses inhibited.
BO:
r0899.0
0 Not ready to power up
1 Read
y
1 Ready
Voltage at Line Module (i.e. line contactor closed
(if used)), field being built up.
BO:
r0899 1
1
Ready
0 Not ready
Cause: no ON command available
r0899.1
2 Operation enabled
1 Operation enabled
Enable electronics and pulses, then ramp up to
active setpoint.
BO:
r0899.2
0 Operation inhibited
3 Fault active
1 Fault active
The drive is faulty and is, therefore, out of
service. The drive switches to Power-on inhibit
once the fault has been acknowledged and the
cause has been remedied.
The active faults are stored in the fault buffer.
BO:
r2193.3
0 No fault present
There is no active fault in the fault buffer.
1 No OFF2 active
BO
4 Coasting active (OFF2) 0 Coasting active (OFF2)
An OFF2 command is active.
BO:
r0899.4
1 No OFF3 active
BO
5 Fast stop active (OFF3) 0 Fast stop active (OFF3)
An OFF3 command is active.
BO:
r0899.5
6 Power-up inhibit active
1 Power-up inhibit
A restart is only possible through OFF1 followed
by ON.
BO:
r0899 6
6
Power up
inhibit
active
0 No power-up inhibit
Power up is possible.
r0899.6