
Commissioning and optimization (software)
7.4 Commissioning of communication between the S7 CPU and the frequency converter
ET 200pro FC
98 Operating Instructions, 11/2007, A5E01100763B AA
P0927 parameter change source
Bit Description Value
0 Fieldbus 0: No 1: Yes
2 Local interface 0: No 1: Yes
The factory setting for all bits is 1, i.e., the parameters can be changed from all sources.
7.4.2 Process data transfer in the PROFIdrive profile
7.4.2.1 Control and status words
Control word 1 (STW1)
(Bits 0 to 10 according to PROFIdrive profile; bits 11 to 15 specifically for SIMATIC ET 200S
FC and ET 200pro FC).
Table 7-8 Preassignment, control word 1
Bit Value Meaning Remarks
1 ON Puts the frequency converter into the "Ready to run"
state. The direction of rotation must be specified with
bit 11.
0
0 OFF1 Shutdown, deceleration of ramp function generator
ramp, pulse tripping when f < f
min
.
1 Do not run down to
standstill
All "Run down to standstill" (OFF2) commands are
canceled.
1
0 Run down to standstill
(OFF2)
Immediate pulse tripping; drive runs down to a
standstill.
1 No rapid standstill All "Rapid standstill" (OFF3) commands are canceled. 2
0 Rapid standstill
(OFF3)
Rapid stop: Shut down with the quickest possible delay
rate.
1 Enable operation CL-control and frequency converter pulses are
enabled.
3
0 Disable operation CL-control and frequency converter pulses are
disabled.
1 Enable ramp function
generator
-- 4
0 Reset ramp function
generator
Ramp function generator output set to 0 (quickest
possible deceleration); frequency converter remains in
ON state.
1 Enable ramp function
generator
-- 5
0 "Freeze" ramp
function generator
The setpoint currently provided by the ramp function
generator is "frozen".
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